Online Synchrophasor-Based Dynamic State Estimation using Real-Time Digital Simulator

Hesam Khazraj, Adeyemi Charles Adewole, Udaya D Annakkage, Filipe Miguel Faria da Silva, Claus Leth Bak, Athula Rajapakse

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Dynamic state estimation is a very important control center application used in the dynamic monitoring of state variables. In transient stability analyses, it is very critical to have accurate and time synchronized measurements with fast reporting rates. This paper presents and validates a time-synchronized phasor measurement unit (PMU)-based for dynamic state estimation by unscented Kalman filter (UKF) method using the real-time digital simulator (RTDS). The UKF algorithm implemented in the dynamic state estimation applies the sigma-point Kalman filter in the estimation of the best location of the measurement in the system state variables. The dynamic state variables of the system are the rotor angle and speed of the generators. The synchrophasor measurment of PMUs are bus voltage magnitudes, phase angles, active, and reactive powers of generators, which are newly applied in the formulated dynamic state estimation for estimate the rotor angle and speed of the generators. The performance of the UKF method is tested with PMU measurements as inputs using the IEEE 14-bus test system. This test system was modeled in the RSCAD software and tested in real time using the RTDS (real-time digital simulator). The dynamic state variables of multi-machine systems are monitored and measured for the study on the transient behavior of power systems.

Original languageEnglish
Title of host publicationProceedings of the IEEE 18th International Conference on Environment and Electrical Engineering and 2nd Industrial and Commercial Power Systems Europe
Number of pages6
Place of PublicationPalermo, Italy
PublisherIEEE Press
Publication dateJun 2018
Pages1-6
Article number8494221
ISBN (Print)978-1-5386-5187-2
ISBN (Electronic)9781538651858
DOIs
Publication statusPublished - Jun 2018
EventIEEE 18th International Conference on Environment and Electrical Engineering and 2nd Industrial and Commercial Power Systems Europe - Palermo, Italy
Duration: 12 Jun 201815 Jun 2018
https://www.eeeic.net/eeeic/

Conference

ConferenceIEEE 18th International Conference on Environment and Electrical Engineering and 2nd Industrial and Commercial Power Systems Europe
CountryItaly
CityPalermo
Period12/06/201815/06/2018
Internet address

Keywords

  • Dynamic state estimation
  • phasor measurement unit
  • transients stability
  • real-time digital simulator

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