Development of Monitoring and Control Systems in UES of Russia on the Platform of Phasor Measurements

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The MAIN JOURNAL for POWER GRID SPECIALISTS in RUSSIA


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14

August 25–29, France, Paris

Development of Monitoring 

and Control Systems in UES 

of Russia on the Platform 

of Phasor Measurements

Andrey ZHUKOV (

Андрей

 

ЖУКОВ

), Deputy Director 

for UES operation control,

Dmitry DUBININ (

Дмитрий

 

ДУБИНИН

), Head of Department 

of transient operation monitoring,

Oleg OPALEV (

Олег

 

ОПАЛЕВ

), Chief Specialist of Department 

of transient operation monitoring, JSC “SO UES”

INTRODUCTION

Improving the ef

fi

 ciency of modern systems of power 

system operation supervisory and automatic control is 
powered by deployment of IT-technology achievements 
with the use of synchronized phasor measurements of 
power system operation parameters.

In Russia the ideology of implementing synchronized 

phasor measurements in technologies of UES of Russia 
operation supervisory and automatic control is developed 
by JSC “SO UES”. In 2005 JSC “SO — CDU UES” 
initiated the creation in UES of Russia of the wide-area 
measurement system (WAMS), intended for recording 
time-synchronized phasor measurements of power system 
operation parameters in particular nodes of UES of Russia 
based on the use of synchronization signals of global 
navigation satellite systems GLONASS and GPS. This 
marked the beginning of phasor measurements technology 
introduction in UES of Russia aimed at solving practical 
control-related tasks.

In fact, WAMS combines a number of technologies 

which provide:
•   measuring and calculating of power system operation 

parameters with high resolution and 1 

μ

sec-accuracy 

universal timestamp referencing;

•   online data delivery in communication medium with 

high degree of reliability and low level of delays to the 

automated data acquisition system of JSC “SO UES” 
dispatch centres;

•   processing and archiving of large data volumes;
•   analyzing data with the aim of revealing deviations of 

monitored power system operation parameters with 
respect to permissible values based on the established 
criteria;

•  implementation of calculation algorithms enabling 

diagnostics of power equipment malfunctions, 
troubleshooting of regulation systems, for example, 
AEC of generators, determining parameters of 
equipment equivalent circuits, in real time mode as 
well, recording their dynamic pattern, etc.;

•   real-time visualization of dynamic pattern of operation 

parameters and visual presentation of results of 
calculation tasks to dispatch and technical personnel.
Russian specialists’ research and studies of foreign 

experience demonstrate advantages of implementation 
of synchronized phasor measurements of power system 
operation conditions for improving control methods and 
algorithms aimed at increasing operation ef

fi

 ciency  of 

control systems of the power system.

The given direction of control system development 

acquires special relevance in the view of the “Energy 
strategy of Russia for the period up to 2030” adopted 
by the Government of RF, which provides for wide 

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integration of 

fl

 exible power transmission systems. 

Implementation of the above-mentioned plans is oriented 
at FACTS deployment in UES of Russia. New-generation 
control systems that enable taking into account real-time 
changes in parameters of UES calculation models, based 
on laws of regulating FACTS elements and dynamic 
characteristics of the power system, can only be developed 
on the platform of phasor measurements of power system 
operation parameters.

DEVELOPMENT OF WAMS IN UES 

OF RUSSIA

Development of the wide-area measurement system in 

Russia was initiated by JSC “SO — CDU UES” in 2005, 
within the framework of the project “Feasibility study of 
synchronous interconnection of UCTE and UES/IES” [1, 
2]. The 

fi

 rst line of WAMS was commissioned in 2006 

on 16 UES power facilities, which made it possible to 
obtain data of synchronized phasor measurements, start 
systematic monitoring and analysis of dynamic properties 
of interconnections, conduct analysis of occurrence and 
development of process disturbances and emergencies.

UES WAMS is a combination of phasor measurement 

units (PMU), implemented individually or as part of 
phasor recorders, phasor data concentrators (PDC), data 
communication channels between power facilities and 
dispatch centres of JSC “SO UES”, and data processing 
means.

JSC “SO UES” carries out development of the phasor 

measurement technology along the following basic 
directions:

  designing and development of Russian synchronized 

phasor measurement devices:

• 

development of synchronized phasor measurement 
equipment

 — the 

fi

 rst Russian PMU of MIP-01 type, 

part of “Smart-WAMS” recorder, was designed by 
CJSC “RTSoft” based on technical speci

fi

  cations of JSC 

“SO — CDU UES” in 2006. At present, synchronized 
phasor measurement devices of four Russian 
manufacturers (CJSC “RTSoft”, LLC “PARMA”, 
LLC “ProSoft-Systems”, CJSC “Engineering Centre 
“Energoservice”) operate on power facilities;

• 

development of equipment intended for acquisition, 
processing and communication of synchronized 
phasor measurements:

 in accordance with JSC “SO UES” technical 

speci

fi

 cations, CJSC “RTSoft” enabled the phasor 

data concentrator function in the “Smart-WAMS” 
recorder for acquisition, processing, storage and 
exchange of technical data on the power-facility 
level;

 LLC “AlteroPower” designed a phasor data 

concentrator to be used as part of WAMS 
hardware and software suites of power facilities 
and distributed automated systems of power 
engineering entities for receiving and processing of 
synchronized phasor measurements;

• 

improvement of technical characteristics of 
synchronized phasor measurement devices:

  JSC “SO UES”, in cooperation with developers of 

synchronized phasor measurement devices, works 
on improving their ef

fi

 ciency as regards reliability 

and accuracy of measurements, increasing 
the measurement sampling rate, extending 
functionality, etc. They carried out works on 
implementing functions of recording synchronized 
phasor measurements and emergencies on the 
basis of emergency event recorders PARMA RP 
4.11 (LLC “PARMA”) and RES-3 WAMP (LLC 
“ProSoft-Systems”), which makes it possible to 
signi

fi

 cantly increase the number of PMU installed 

on power facilities in UES of Russia.

Synchronized phasor measurement devices, now 

implemented abroad and in UES of Russia, were initially 
intended for wide-area measurements (Wide Area 
Measurement System — WAMS). At that, the requirements 
to PMU themselves, phasor measurement communication 
and processing systems did not provide for the possibility 
of their use for power system control and protection. 
However, advantages of implementation of the phasor 
measurement technology for improvement of automatic 
control systems turned out to be so substantial that at 
present technical complexes of power system control and 
protection based on the use of phasor measurements (Wide 
Area Control System — WACS; Wide Area Protection 
System — WAPS) are developed. Abroad they use the 
WAMPACS abbreviation, which integrates WAMS, 
WACS and WAPS [3, 11]. JSC “SO UES” has tried out 
the technology of synchronized phasor measurement 
data acquisition and communication to processing 
centres, developed an automated data acquisition system 
(WAMS ADAS), which enables on-line and off-line data 
delivery to JSC “SO UES” dispatch centres, which creates 
prerequisites for implementation of phasor measurement 
data in control and protection systems.

A serious problem of implementing the given 

developments in technical terms is meeting the 
requirement to ensuring accuracy of phasor measurements 
in the operation time interval of triggers (start-regulating 
elements) of power system automatic control and 
protection devices. One of the ways to increase the 
quality of phasor measurements of power system transient 
operation parameters and meet the requirement to speed 
performance of triggers of automatic control devices is 
ensuring accuracy of measurements alongside increasing 
of calculation sampling of power system operation 
parameters up to 6—12 times per mains frequency cycle. 
This task is set before developers of new-generation PMU.

Evidently, various requirements to functionality of 

monitoring, control and protection systems (WAMS, 
WACS, WAPS) establish respective requirements to the 
level of ef

fi

 ciency of phasor data measurement, processing 

and communication devices, too. Requirements to speed 
performance of monitoring, control and protection 


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— WAMS HSS, operating online and of

fl

 ine;

— WAMS HSS, operating of

fl

 ine;

— phasor data concentrators in dispatch centres.

Fig. 1. Arrangement scheme of WAMS recorders in UES/IES

systems with account for the current level of technology 
development are given in Table 1.

At present, there are more than 130 manufacturers 

of PMU, PDC, test-bench equipment and software 
for WAMS/WACS/WAPS abroad. The world leaders 
in manufacture of synchronized phasor measurement 
devices are such companies as ABB, Alstom Grid, 
Arbiter Systems, Electric Power Group, GE Energy, Grid 
Protection Alliance, OSIsoft, Schweitzer Engineering 
Laboratories, Siemens, Symmetricom and others. The 
operating WAMS of UES of Russia uses PMU of the 
following manufacturers:

•  PMU of MIP-01, MIP-02 type (CJSC “RTSoft”);
•  Smart WAMS recorder (CJSC “RTSoft”);
•  CRAP PARMA RP 4-11 recorder (LLC “PARMA”);
•  RES-3 WAMS recorder (LLC “ProSoft-Systems”);
•  PMU of ENIP-3 WAMS type (CJSC “Engineering 

Centre “Energoservice”);

•  PMU by CJSC “Engineering Centre Continuum”;
•  PMU Power Sentinel of 1133

А

 model (Arbiter 

Systems, USA).
JSC “SO UES” has repeatedly conducted comparative 

tests of Russian and foreign PMUs with the aim of 
comparing their characteristics and assessment of 
prospects of their implementation in UES of Russia. The 
given tests were conducted with the use of the digital-
analog-physical complex of JSC “NTC UES” and RTDS 
hardware and software suite. Based on the test results 
in 2013 there were developed “Methods of conducting 
PMU certi

fi

 cation tests”, providing for check of PMU 

characteristics in steady-state and transient operating 
conditions for compliance with requirements of the 
international standard IEEE 

С

37.118.1-2011.

 Development of regulatory and methodical base 

for implementation of synchronized phasor 
measurements:

• requirements to phasor measurement units and 

WAMS hardware and software suites (WAMS HSS) 

Table 1. Requirements to speed performance of 

monitoring, control and protection systems of the 

power system

of

fl

 ine

ADCS

WAMS 

of

fl

 ine

not 

regulated

Steady-state and 

transient processes

real 

time

WAMS 

online

t < 5 sec

ACS

(online)

WACS

t < 5 sec

Steady-state 

operation

WAPS

t < 1 sec

Electromechanical 

transients

РЗ

t << 1 sec

Electromagnetic 

transients

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of power facilities were 
developed;

•  “Methods and program of 

phasor measurement unit 
certi

fi

 

cation tests” were 

developed and tried out in 
practice;

•  requirements to organization 

of transients monitoring 
in power systems for 
emergency control tasks 
were introduced into the 
National standard of RF 
(GOST R 55105-2012) 
“Supervisory Control. 
Automatic emergency 
control of power system 
operation. Automatic 
emergency control devices of power systems. 
Speci

fi

 cations and regulations”;

•  principles and order of interaction between power 

engineering entities during organization of WAMS HSS 
operation, development of new suites or modernization 
of existing ones are speci

fi

 ed in the standard of JSC 

“SO UES” (STO 59012820.29.020.002-2012) “Relay 
protection and automation. Interaction of power 
engineering entities and electric power consumers 
in creation (modernization) and organization of 
operation”.

 

Organizing works on designing and integrating 
WAMS HSS on power facilities:

•  in cooperation with JSC “Rosenergoatom Concern” and 

CJSC “ENPRO”, a project of WAMS HSS creation on 
Beloyarsk, Kalinin, Kursk, Novovoronezh, Smolensk, 
Rostov, Leningrad and Kola nuclear power plants was 
developed and implemented;

• System projects of WAMS development in 

Interconnected energy systems of Urals and Siberia 
were developed;

•  in accordance with requirements to organization of 

WAMS in power systems for emergency control tasks, 
WAMS HSS are designed for newly commissioned and 
reconstructed operating power facilities (arrangement 
scheme of WAMS recorders in shown in Fig. 1).
The increase in the number of installed WAMS 

complexes on power facilities and PMU in the period 
from 2005 to 2013 and prospects up to 2020 are shown in 
the diagram (Fig. 2).

 

Creation of the automated on- and off-line data 
acquisition system for supervisory and automatic 
control of power systems

One of relevant tasks in the process of creating 

WAMS in UES of Russia is developing and integrating 
of an automated phasor measurement data acquisition 
system in dispatch centres of JSC “SO UES” that provide 
communication of large volumes of data with high 
reliability and minimal time delays. Works on development 

PMU
WAMS HSS

1000

900

800

700

600

500

400

300

200

100

0

2006 2007 2008 2009

2010 2011 2012

2013 2014 2015 2016

2017 2018 2019

2020

Fig. 2. Prospects of integrating WAMS suites on power facilities

of the given system were conducted by specialists of JSC 
“SO UES” in cooperation with LLC “AlteroPower”, and 
in 2012 WAMS ADAS was commissioned in dispatch 
centres of JSC “SO UES” (the schematic overview of the 
data acquisition system is shown in Fig. 3). Deployment 
of WAMS ADAS in JSC “SO UES” will lead to:
•  creation of a complex infrastructure, on the basis of 

which the technology of automated online and of

fl

 ine 

data acquisition from WAMS recorders for dispatch 
centres of JSC “SO UES” was implemented; 

•  enabling systematic acquisition of data of WAMS 

recorders in the event of process disturbances and 
emergency situations in UES of Russia;

• enabling the possibility of developing control 

technologies, which use phasor measurement data of 
power system operation parameters, on the basis of 
WAMS ADAS.

 

Development of power system supervisory 
and automated control on the basis of phasor 
measurements

The main aim of developing the technology of 

synchronized phasor measurements is improving quality 
and reliability of power system supervisory and automated 
control. In this connection JSC “SO UES” initiated 
development and deployment of the following systems:
•   to enable max. capacity of transmission lines with 

account for actual power system operating conditions, 
estimate stability margin in monitored grid sections in 
real-time mode, the Stability margin monitoring system 
(SMMS) was developed and commissioned in northern 
areas of Tyumen Region, which required installation of 
PMU on six power facilities and organization of the 
phasor data acquisition system in Tyumen regional 
dispatch of

fi

 ce [4, 5].

Works on further development of SMMS functionality 

are conducted; new-generation SMMS complexes were 
put into pilot operation in the North-West IES in two JSC 
“SO UES” branches. Integration of the new-generation 
SMMS will make it possible:


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   to use grid capacity to its maximum while ensuring 

regulatory stability margin by controlling operation 
with account for actual operating conditions and 
current limitations and emergency control resources;

  to provide the dispatcher in real-time mode with 

actual values of emergency-state permissible and 
maximum permissible active power exchanges in the 
grid in various power system operating conditions;

•   with the purposes of monitoring operation of excitation 

systems and automatic excitation regulators of 
generators at power plants, a pilot project of the system 
regulator monitoring system (SRMS) at the North-
West power plant was developed and implemented 
with support of JSC “Inter RAO” [6].
SRMS basic functions are prompt identi

fi

 cation  of 

generation equipment with malfunctioning excitation 
systems, which can cause emergency situations in the 
power system, diagnostics of sustained low-frequency 
synchronous oscillations (LFO) of generators to ensure 
proper operation of system stabilizers, estimation of the 
required extent of adjusting AEC settings, troubleshooting 
the excitation system of synchronous generators, etc.

Pilot operation of the system at the North-West power 

plant made it possible to reveal inef

fi

 cient operation of 

system stabilizers and make required adjustment of the 
settings.

At present, in cooperation with LLC “LUKOIL-

Kubanenergo”, the company works on SRMS development 

and deployment at Krasnodar 
power plant:

• in order to analyze dynamic 

properties of the power system, 
diagnose LFO in different parts 
of UES of Russia, identify 
sources of process disturbances 
and estimate the degree of 
the hazard they pose for the 
power system, LFO monitoring 
methods and algorithms 
are developed. It is planned 
to complete works on its 
integration with WAMS ADAS 
in 2014;

• in order to increase the 

accuracy of calculations in 
power system state estimation 
programs, works on extending 
scope of implementation 
of synchronized phasor 
measurements in hardware and 
software suites of centralized 
systems of emergency control 
automatics (CS ECA) are 
carried out.

 

Support of WAMS HSS 

operation on power facilities

JSC “SO UES” supervises 

WAMS HSS development and integration processes on 
power facilities, establishes technical speci

fi

 cations  of 

the suites, coordinates statements of work and design 
documentation, participates in acceptance of suites for 
operation and, by means of WAMS ADAS, monitors 
operation of the suites after their commissioning.

At present, JSC “SO UES” uses synchronized phasor 

measurement data:
•  to analyze process disturbances and emergency 

situations (post-emergency analysis);

•   to monitor correct operation of system regulators;
•   to verify calculation models [7, 8];
•  to monitor participation of power generation units in 

general primary frequency control and rated primary 
frequency control;

•  to assess UES frequency characteristics during 

fi

 eld 

tests;

•  to increase accuracy of state estimations;
•  to specify static and dynamic characteristics of the 

power system;

•  to analyze LFO and identify their parameters;
•  to estimate stability margins in monitored grid sections.

While solving the above mentioned tasks, JSC 

“SO UES” actively cooperates with Russian and 
foreign partners, including JSC “NTC UES”, JSC 
“Energosetproyekt Institute”, Moscow Power Engineering 
Institute, Institute of Energy Systems of RAS Siberian 
Branch, CJSC “RTSoft”, LLC “PARMA”, LLC “ProSoft-

Fig. 3. Schematic overview of UES/IES WAMS data 

acquisition system

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Systems”, LLC “AlteroPower”, CJSC “Engineering 
Centre “Energoservice”, Alstom Grid, Psymetrix, Elpros, 
SC B5 CIGRE “Protection and Automation” committee, 
Very Large Power Grid Operators and others.

By now, 51 WAMS suites have been commissioned in 

UES of Russia, the number of PMU is 262. For the period 
of 2014—2015 it is planned:
•  to integrate WAMS HSS at Beloyarsk Nuclear 

Power Station-2, Konakovskaya GRES, CHPP-
16 and 26 Mosenergo, Nevinnomysskaya GRES, 
Votkinsk Hydroelectric Station, Serovskaya and 
Nizhnevartovskaya GRES, Kaliningrad CHPP-2, and 
a number of JSC “FGC UES” substations;

•  to update the existing WAMS complexes of 1150 kV 

substation Altai, Sayano-Shushenskaya Dam, Zagorsk 
pumped storage station, Kalinin, Kursk, Novovoronezh, 
Rostov and Smolensk nuclear power plants.
According to preliminary estimates, by the end of 

2015 WAMS complexes will be deployed on more than 
80 power facilities (more than 400 PMU), while by 
2020 — on 200 UES of Russia power facilities (more 
than 1000 PMU).

MAIN DIRECTIONS AND PROSPECTS 

OF IMPLEMENTATION OF SYNCHRONIZED 

PHASOR MEASUREMENTS 

IN PRACTICAL TASKS

WAMS ADAS deployment in JSC “SO UES” and 

increasing number of installed PMU and PDC on power 
facilities enable using synchronized phasor measurement 
data in practical tasks. The technology provides more 
accurate (both by the values of measured parameters 
and measurement time synchronization) data, comparing 
to existing telemetry systems, and the main task for 
development and implementation of its potential is 
designing new software and adapting the existing one 
(software applications) with the aim of improving power 
system control reliability and quality. In world practices 
all tasks based on phasor measurements are provisionally 
divided into two main categories:
•  analytical and calculation applications using archive 

information (of

fl

 ine);

•  tasks of real-time power system operation monitoring 

and control (online).
Analysis of foreign publications as regards 

implementation of synchronized phasor measurements for 
power system control tasks demonstrates the following 
directions of their use in System operators and power 
companies:
•  for supervisory control and automated emergency 

control tasks:

 monitoring of emergency triggering conditions 

with the aim of taking measures on their prevention 
and control;

  control of power 

fl

 ows in the grid with account for 

relative angle, as well as presence and level of low-
frequency oscillations;

  identifying of the place of emergency separation of 

the power system and further synchronization of 
the sections;

  dispatcher’s situational awareness (visualization of 

dynamic pattern of operation parameters, integration 
of analysis results with various visualization 
means);

  monitoring of voltage load stability;

  improving of state estimation accuracy;

  calculation and graphic visualization of reactive 

power reserves, etc.;

•  for tasks solved by technical personnel (specialists of 

power system operation control, relay protection and 
automation services):

  analyzing of process disturbances and emergency 

situations (post-emergency analysis);

  monitoring of operation of system regulators;

  monitoring of participation of power generation 

units in primary frequency control;

  estimation of UES frequency characteristics during 

fi

 eld tests;

 increasing accuracy of calculating maximum 

permissible exchanges; 

  verifying of calculation models;

  improving of state estimation accuracy;

  specifying of static and dynamic properties of the 

power system;

 localizing faults in transmission lines and identifying 

kinds of faults;

 specifying parameters of equivalent circuits of 

transmission lines, power equipment and consumer 
load [9];

•  for tasks solved by personnel of power companies:

  monitoring of operation of system regulators;

  analyzing of process disturbances and emergency 

situations;

  diagnostics of state of transmission lines and power 

equipment;

  monitoring of electric power quality;

  fault localization, etc.

Possibilities of WAMS technology implementation 

in application tasks, being of interest for backbone 
grid companies and, to some degree, distribution grid 
companies, are given in [10, 11, 12].

Among promising R&D works conducted now by JSC 

“SO UES”, one can distinguish the following.

WORKS ON PROVIDING REAL-TIME 

MONITORING OF LOW-FREQUENCY 

OSCILLATIONS

Monitoring of low-frequency oscillations is one of 

the most widely spread applications in the world based 
on synchronized phasor measurement data. One function 
of such applications is identifying the modal composition 
of operation parameters, oseillations dominant local and 
interzone modes and estimation of parameters of low-
frequency oscillations, including damping factors to 


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August 25–29, France, Paris

Fig. 5. Screen form of the application “Monitoring of low-

frequency oscillations”

estimate oscillatory stability level.

Since 2006 JSC “SO UES” has been conducting 

monitoring of low-frequency oscillations with the aim 
of analyzing dynamic properties of the power system, as 
well as identifying “problematic” places and developing 
guidelines on changing forced control automated excitation 

Fig. 4. Current frequency and active power spectrograms of the grid in UES of Russia

regulator settings and optimizing settings 
of AEC systemic stabilization channels on 
operating power facilities. Low-frequency 
system oscillations and exceedence of 
certain levels by their parameters can 
lead to improper parallel operation of 
power plants and power systems. Besides, 
permanent under-damped oscillations of 
power system operation parameters in one 
part of the interconnection, being a periodic 
disturbance, can cause oscillations in 
another part of the interconnection and 
also cause instability. Since at present 
FACTS elements are not implemented 
for damping oscillations of power system 
operation parameters, almost the only 
means of damping oscillations is system 
stabilizers included in automatic excitation 
regulators of synchronous generators at 
power plants.

Work on developing LFO monitoring 

software suite on the basis of WAMS 
ADAS was initiated in 2013. Dominant 

LFO modes in the daily frequency spectrum of Kola nuclear 
power plant, in the frequency spectrum during synchronous 
swings of power generation units of Surgutskaya GRES-
2 (05.06.2011 16:24—16:34) and in active-power 
spectrum of 500 kV OHL Sayano-Shushenskaya Dam-
Novokuzneskaya 2, which re

fl

 ect impact of an aluminum 

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plant load on spectral properties of power 
system operation parameters, are shown 
as provisionary results of WAMS data 
analysis in Fig. 4.

Software developers have the task of 

designing an automatic tool for real-time 
monitoring of low-frequency oscillations 
(one of application screen forms is shown 
in Fig. 5). The main advantage of such 
a system is the possibility of prompt 
identi

fi

 cation of the most hazardous 

zones and oscillation transits, obtaining 
comprehensive information about current 
parameters of oscillations in a convenient 
visual form and conducting statistical 
analysis of changes in UES of Russia 
spectral properties.

Fig. 6 shows the operation algorithm 

of the “Monitoring of low-frequency 
oscillations” application included in 
WAMS ADAS.

At present works on analyzing 

frequency spectra, identi

fi

 cation  of 

dominant modes of power system 
operation parameters in different parts of 
UES of Russia are conducted, with the 
aim of identifying sources of LFO and 
developing measures on their reduction 
(elimination). One of possible technical 
solutions for implementation of results 
of the given task is using the algorithm 
of adaptive adjustment of settings 
of automatic excitation regulators of 
synchronous generators at power plants 
based on the hazard level of recorded 
LFO (Fig. 7).

DEVELOPMENT 

OF SOFTWARE SUITES FOR 

POWER SYSTEM OPERATION 

MONITORING BASED 

ON WAMS DATA

In connection with signi

fi

 cantly 

increasing information volumes, one of 
relevant tasks of improving supervisory 
control quality is optimizing information 
presentation to dispatch personnel, 
including visualization of power system 
operation parameters and condition of power equipment of 
power facilities and transmission lines. Works in the 

fi

 eld 

of development and improvement of software products 
enabling adequate demonstration of processes in the 
power system on the basis of phasor measurements and 
increasing speed of dispatcher’s response are nowadays 
conducted abroad by such companies as Alstom Grid, 
OSIsoft, ELPROS d.o.o., ABB, Siemens, PowerWorld 
and others. One of the most functional software products 

that use phasor data of power system operation parameters 
is RTDMS (Real Time Dynamic Monitor System, USA), 
installed in dispatch centres of all System operators of 
the USA (Fig. 8). Specialists of JSC “SO UES” study 
such foreign practices to assess the possibility of using 
the technologies for supervisory control tasks in UES 
of Russia. For example, within the framework of a pilot 
project, they examined functionality of WAProtectorTM 
software, developed by ELPROS d.o.o. (Slovenia). It is 

Fig. 6. Operation algorithm of the application “Monitoring of 

low-frequency oscillations”

Data preparation

Spectral analysis

LFO identi

fi

 cation

Mode analysis

Correlation analysis 

of dominant 

modes

Estimation of SG 

participation level

Gradation of 

dominant modes

Identi

fi

 cation 

of permanent 

modes

Estimation of mode 

hazard 

ALARM

DA

TABASE, information visualization

Fig. 7. Schematic overview of the algorithm of adaptive 

adjustment of AEC settings based on LFO level

AEC

AEC

LFO

AEC adaptive 

adjustment

WAMS ADAS

AEC

AEC

ES-4

ES-3

ES-2

SRPC

ES-1

SS 

1 SS 

2

TCSC

ES-5

AEC

SS 

3 SS 

4 SS 

5


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August 25–29, France, Paris

planned to test PhasorPoint software (Psymetrix, Alstom 
Grid) in 2014. Study of foreign experience does not 
exclude the need in developing Russian solutions for using 
phasor recording technologies based on knowledge of 
operation peculiarities of UES of Russia and accumulated 
experience in supervisory and automated control of UES 
of Russia.

The main prerequisite of developing PC-monitoring 

of the power system based on WAMS 
data is the current level of modern 
software designed for processing and 
displaying of large volumes of data 
capable of providing JSC “SO UES” 
dispatch and technical personnel not only 
with standard visualization of dynamic 
pattern of power system operation 
parameters, but also with dispatcher’s 
situational awareness, by giving access 
to calculation and analytical information 
of various applications using WAMS 
database. The dispatcher will be able to 
obtain comprehensive information about 
emergencies and their causes, process 
characteristics and to access the required 
calculation and analytical information 
described earlier.

JSC “SO UES” has developed 

prototypes of visualization forms of 
displaying dynamic pattern of power 
system operation parameters in normal 
operation mode and in the event of process 
disturbances and emergency situations 
across the UES of Russia (Fig. 9, 10, 11). 
Measurement synchronization enables 
graphic visualization of real transient 
processes within UES of Russia, which 
implements the principle of global 
monitoring. Such software products 
are used in power systems of the USA, 
China, Spain, etc. Figuratively speaking, 
the technology takes a multitude of 

Fig. 8. RTDMS screen forms

Fig. 9. Distribution of voltage relative angles across UES

Fig. 10. Frequency sweeps at Surgutskaya GRES-2 and 

identi

fi

 cation of parameters of low-frequency oscillations 

consecutive snapshots of the state of the power system, 
enables visualizing the dynamic pattern of operation 
parameters and provides the dispatcher with a clear picture 
of processes taking place in the power system.

Visualization of the dynamic pattern of operation 

parameters is a promising R&D direction and can be used 
to solve the following supervisory control tasks:
•   identi

fi

 cation of a process disturbance and its location;

Grid Control


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info@eepr.ru,   www.eepr.ru

•   monitoring of the process of occurrence and 

development of synchronous (asynchronous) swings;

•   monitoring of power system separation into sections;
•   monitoring of dynamic properties of the power system 

and its particular nodes;

•   post-emergency analysis of process disturbances;
•   emergency response drills of dispatch personnel, etc.

CONCLUSION

Summarizing on provisional results of development 

and implementation of synchronized phasor measurement 
technology in UES of Russia, the following conclusions 
can be drawn:
•   JSC “SO UES” acts as an ideologist and coordinator of 

development of the synchronized phasor measurement 
technology for monitoring and control tasks in UES of 
Russia;

•  the strategy of development and deployment of 

phasor measurement technology is directed at solving 
practical tasks of monitoring and improving ef

fi

 ciency 

of control in UES of Russia;

•   development of the synchronized phasor measurement 

technology in UES of Russia is carried out by Russian 
specialists with account for experience accumulated 
abroad;

•   at present, there is a technology platform in Russia 

enabling use of on- and off-line phasor measurements 
of operation parameters in practical supervisory and 
automated control tasks;

•   regulatory and methodical base developed by JSC 

“SO UES” enables designing and deployment of 
WAMPACS systems on newly commissioned and 
reconstructed power facilities of UES of Russia;

•  JSC “SO UES” conducts constant monitoring of 

developed UES WAMS. Data of phasor measurements 
are used to analyze operating conditions of the power 

Fig. 11. Process of frequency-wave propagation across UES upon disconnection of a power generation 

unit of Nizhnevartovskaya GRES (795 MW imbalance)

0

с

5

с

1

с

4

с

3

с

2

с


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August 25–29, France, Paris

Grid Control

system, its dynamic properties during system tests, 
disturbances and emergency situations in the power 
system;

•  JSC “SO UES” has developed, deployed and is 

improving technologies of automated grid stability 
margin monitoring and monitoring of operation of 
system regulators at power plants, operating in real-
time mode. Works on implementation of the phasor 
measurement technology in development of modern 
emergency control automatics are conducted;

• 

 JSC “SO UES” coordinates efforts of Russian 

developers directed at improvement of hardware 
of synchronized phasor measurement devices, 
establishes requirements to functionality and technical 
speci

fi

 cations of recorders and arranges PMU tests;

•   JSC “SO UES” outlines the ideology and develops 

software for analyzing UES of Russia dynamic 
properties, diagnostics and identi

fi

 cation of low-

frequency oscillations, estimation of damping 
properties of the power system for their further use in 
supervisory and automated control tasks.
Among the nearest-term tasks of developing control 

technologies in UES of Russia based on WAMS phasor 
measurement data, the following can be enumerated:
•   research related to implementation of synchronized 

phasor measurements of operation parameters in 
control systems in conditions of deploying elements of 
active-adaptive grids in UES of Russia;

•  development of adaptive algorithms of choosing 

controlling impacts of automated normal and 
emergency operation control systems in UES of Russia 
on the platform of modern IT-technologies and phasor 
measurements of power system operation parameters;

• 

 development of new-generation Russian phasor 

measurement units in order to use them as triggers 
(start-regulating elements) in automated normal and 
emergency operation control systems in UES of Russia 
(WACS, WAPS);

•  development of methods and software for online 

actualization of equivalent circuit parameters of power 
system elements based on current phasor measurements 
data for their use in calculation tasks of automated 
control systems;

•   development of a package of applications for the 

“Dispatcher’s Advisor” software suite, which includes 
software for analysis and estimation of current 
operating parameters of the power system, forecasting 
consequences of their worsening and visualization of 
the dynamic pattern of operation parameters and their 
trends, etc.;

•    development of JSC “SO UES” standard “Requirements 

to the system of phasor recording of power system 
operation parameters for tasks of supervisory and 
automated control of UES of Russia”;

•   development of type design solutions for hardware 

and software suites of recording operation parameters 
of transmission lines and power equipment;

• 

 involvement of power engineering entities in 

development of technology tasks related to estimation 
of operation state and remaining life-time of power 
equipment, proper operation of regulation systems 
based on synchronized phasor measurement data, etc.

REFERENCE LITERATURE

1.  B.I. Ayuev. About the Wide Area Measurement System / 

Energorynok, 

 2, 2006.

2.  N.G. Shulginov, L.A. Koshcheev, A.V. Zhukov, A.T. 

Demchuk. Improving operational reliability of UES 
of Russia by means of automatic emergency control 
devices — Papers of 43rd CIGRE session, 2010.

3. 

 

A.V. Zhukov, A.T. Demchuk, D.M. Dubinin. 
Development of technologies of phasor measurements 
for emergency and normal operation control of the 
power system / RPA 2012 // Papers of XXI international 
research and development conference. Moscow, All-
Russia Exhibition Centre, 2012. p. 232—245.

4.  Yu.A. Kulikov. Use of the technology of phasor 

measurements in UES of Russia for information support 
of supervisory control / “Energetik”, 

 1, 2009.

5.  A.T. Demchuk, .V. Zhukov, P.Ya. Kats, V.A. Danilin. 

System of monitoring power system stability margin 
with the use of the technology of phasor measurements 
/ Modern directions of development of relay protection 
and automation systems of power systems. Papers of the 
International research and development conference, 
Moscow, 2009.

6.  A.S. Gerasimov, A.Kh. Esipovich, A.V. Zhukov, A.T. 

Demchuk, A.P. Negreev. System of monitoring automatic 
excitation regulators of synchronous generators at 
power plants of UES of Russia / RPA 2012 // Papers 
of XXI international research and development 
conference. Moscow, All-Russia Exhibition Centre, 
2012. p. 457—463.

7.  B.I. Ayuev, A.S. Gerasimov, A.Kh. Esipovich, Yu.A. 

Kulikov. Veri

fi

 cation of digital models of UES/IES. 

Elektrichestvo, 

 5, 2008.

8.  A.S. Gerasimov, A.Kh. Esipovich, Yu.A. Kulikov, A.N. 

Smirnov. Experience of veri

fi

 cation of UES/IES dynamic 

model based on the wide-area measurement system data. 
/ Collection of papers “Izvestiya of R&D Institute of D

С

 

power transmission” (journal). St. Petersburg, 2009.

9.  A.A. Nebera. Applications of phasor measurements 

of operating conditions / Modern directions of 
development of relay protection and automation 
systems of power systems. Papers of the International 
research and development conference, Moscow, 2011.

10. 

www.nerc.com Real-Time Application of 
Synchrophasors for Improving Reliability. 2010.

11. D. Novosel, K. Vu, Bene

fi

 ts of PMU technology for 

various applications. 7-th CIGRE Symposium for 
power system management. 04—06.11.2006.

12.  w w w. n a s p i . o r g / r e s o u r c e s / 2 0 0 9 _ m a r c h /

phasorappstable_20091201.pdf. Actual and potential 
phasor data applications.


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