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International Experiences in synchrophasor applications

Date: Wednesday, May 26                              Time:

                                                                       Add to calendar: Panel9.ics

Name of the organizer: Mladen Kezunovic, Regents Professor


Organisation: Texas A&M University, USA

Short biography of the chair: Mladen Kezunovic (S’77–M’80–SM’85–F’99– LF’17) received the Dipl. Ing. from University of Sarajevo, Sarajevo, Bosnia, and M.Sc. and Ph.D. degrees in electrical engineering from University of Kansas, Lawrence, KS, in 1974, 1977, and 1980, respectively. He has been with Texas A&M University, College Station, TX, USA since 1986, where he is currently Regents Professor, Eugene E. Webb Professor, and the Site Director of “Power Engineering Research Center” consortium. For over 25 years he has been the Principal Consultant of XpertPower Associates, a consulting firm specializing in power systems data analytics. His expertise is in protective relaying, automated power system disturbance analysis, computational intelligence, data analytics, and smart grids. He has authored over 600 papers, given over 120 seminars, invited lectures, and short courses, and consulted for over 50 companies worldwide. Dr. Kezunovic is a CIGRE Fellow, Honorary and Distinguished member. He is Registered Professional Engineer in Texas.

Abstract: Deployment of phasor measurement units (PMUs) in the US grid has surpassed 3,000. Other countries such as China, Russia and India are deploying PMUs at a rapid pace widely as well. Combined, the mentioned countries have deployed or are planning to deploy over 10,000 PMUs so far. This panel will be focused on the discussions of how the synchropahsor systems are used today to monitor, control and protect power system. The representatives from the USA, China, Russia and India will discuss their experiences and share the lessons learned.

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Panelist 1:

Name: Dmitry Dubinin

Organisation: System Operator of United Power System of Russia – Head of the Wide Area Monitoring Division, Russia

Short biography: Dmitry Dubinin received a diploma of electrical engineer (1992 – 1997, State Power University, Ivanovo, Russia). He worked at the Kola Nuclear power plant (1998 – 2010) by leading engineer of relay protection Department and implementation of automated monitoring and control systems. Since 2010 he has been working as the Head of the Wide Area Monitoring Division in the System Operator (SO UPS). He is responsible for: a) development of regulatory and guidance documentation providing WAMS deployment and operation in the United Power System of Russia, and b) deployment of the automated PMU data acquisition system and synchrophasor applications in control centers of the System Operator. He is a member of CIGRE. He has authored over 10 papers.

Title of presentation: Synchrophasor application experience in Russia

Abstract: The presentation describes the creation and current deployment of WAMS in Russia. The implementation of the automated PMU data acquisition system in 22 control centers of the System operator will be considered. The following issues will also be discussed: a) deployment in control centers of synchrophasor applications: online low frequency oscillation monitoring, System for Monitoring the Operation of System Regulators, b) 3D-visualization, data quality monitoring, c) PMU&PDC certification procedures in Russia; d) prospects for the development of new synchrophasor applications.

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Panelist 2:

Name: Huafeng Zhou

Organisation: China Southern Power Grid, Power Dispatching & Control Center – Vice Director of Automation Division, China

Short biography: Huafeng Zhou received his Bachelor’s and Master’s Degrees from the University of Huazhong University of Sci. & Tech.(1995-2001). After that He worked as an engineer at an EMS vendor in China for 3 years. He got his PhD Degree from the University of Hong Kong (2004-2008). Since 2008, he has been working at the dispatching & control center of China Southern Power Grid (CSG). His interests include the research and development of EMS, WAMS and MMS (Power Spot Market System).

Title of presentation: Experiences and future development for synchrophasor technology

Abstract: The presentation will discuss: (1) State-of-the-art Experiences: a) Online monitoring: Voltage stability monitoring, Hybrid state estimation, Oscillation detection & wide area monitoring, Frequency disturbance event detection, Islanding detection, b) Parameter identification: Generator model validation, Load model validation, Network validation and topology estimation, c) Post-event analysis: Low frequency oscillation analysis, Accurate fault positioning and restoration, and d) Application in distribution network: Integrating renewable and distributed resources, Automatic controls of demand response, Automatic fault positioning of distribution network, Power quality analysis; and (2) Future development: a) Power system wide-frequency measurement technology: Able to monitor and measure low frequency oscillation, subsynchronous oscillation, hyper-synchronous oscillation and 100-300Hz wide-frequency oscillation, b) Multi-functional measurement and control device: A multi-functional device which integrates PMU, metering unit, measurement and control unit, and c) 5G and PMU: Using 5G mobile network for high speed, high frequency and high precision PMU data transmission.

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Panelist 3:

Name: Teboho Machabe

Organisation: Transmission System Operator, ESKOM – Senior Engineer, South Africa

Short biography: Teboho graduated with a BSc Electrical engineering degree from the University of the Witwatersrand, Johannesburg, South Africa in 2010. He began employment in 2011 at BMW Rosslyn plant as a trainee for one year working at the Analysis and Test Centre. He then joined Eskom System Operator in 2012 as a trainee and in 2014 he was appointed as an engineer working in the Specialized System Studies section of the System Operator Operations Planning department. In 2017 he was appointed as a Senior Engineer in the area of Specialized Systems with particular focus on Wide Area Monitoring System (WAMS) which utilizes Phasor Measurement Units (PMUs). He became a member of South African Institute of Electrical Engineers in 2016 and subsequently was elected as a secretary of the Central Gauteng Centre of SAIEE in 2017. In 2018 he was elected to be Deputy Chairperson of the Central Gauteng Centre. He is the immediate past chairperson of the SAIEE Central Gauteng Centre that achieved the Centre of the Year award in the 2019/2020 term and has served in the SAIEE Council during that period. He is a registered Professional Engineer with the Engineering Council of South Africa (ECSA) and is a member of ECSA reviewers for Professional Engineer registrations. He is also part of the CIGRE Working Group – Wide Area Monitoring Systems – Support for Control Room Applications. Teboho is presently employed at the System Operator operations planning department as a Senior Engineer executing the WAMS project and is also a candidate MSc graduate with the School of Electrical Engineering at the University of the Witwatersrand.

Title of presentation: The Advantages of PMU Data Analytics in Power Systems with High Renewable Energy Penetration

Abstract: Renewable energy sources are mostly inverter based generators that harness either the solar radiation or the energy in the wind for the production of electrical energy. Inverter based energy sources have very little inertial response and thus inherently contribute very little to the system inertia. This implies that the displacement of synchronous generators to accommodate the renewable energy sources will result in low system inertia. The change in the system inertia may result in an increase or decrease in the number of dominant modes of the power system. The frequency range of the oscillation may increase from the traditional known range of 0.2 Hz to 3 Hz. It therefore becomes important for the operator of the power system to be able to have full visibility of the dynamic system behavior. The traditional Supervisory Control and Data Acquisition (SCADA) visualization tool of the power system becomes inadequate as it does not show the transient behavior of the power system due to its inherent low data resolution. PMU based visualisation tool is better equipped to monitory the dynamic instabilities of the power system.

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Panelist 4:

Name: Rajiv Porwal

Organisation: Power System Operation Corporation Limited (POSOCO) – Chief General Manager, India

Short biography: Working at National Load Dispatch Centre (NLDC), POSOCO, the Power System Operator of the Country. Within RLDC & NLDC, has worked in Grid Management, Operational Planning, Scheduling, Operation Services, MIS, Energy Metering & Settlement system and Commercial departments. Has worked as Open Access Coordinator of NRLDC. Has also taken up responsibility as Reliability Coordinator of the Northern Region as well as at National level. Specialties: Good understanding of Indian Power Sector especially power system operation, regional settlement system, Open Access, working of the market mechanism in India.

Title of presentation: Synchrophasor Applications in Indian Power System

Abstract: India started deploying Wide Area Monitoring System (WAMS) as a pilot since 2010 for improving Situational Awareness (SA) of the power system with a high resolution data availability at control centres. The number of phasor measurement units (PMUs) available in the system at present has increased to more than 1400. This Synchrophasor technology is being utilized by power system operators as an analytical tool for better system operation such as monitoring of frequency, Rate of change of frequency, Voltage, Power flows and Angle differences. The different applications at control centre are fault identification, islanding, stress on the transmission system, intra and inter area oscillation detection, voltage imbalances, model validation, linear state estimation. These synchrophasors have also been used in post-dispatch analysis of events. These aspects and some of the applications of synchrophasor displays and data as used in Indian power system operation would be discussed.

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