Adaptive Online Disturbance Location Considering Anisotropy of Frequency Propagation Speeds

Hengxu Zhang, Fang Shi, Yutian Liu, Vladimir Terzija

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Online disturbance location is of significant importance to wide-area response-based situational awareness, stability analysis and control of the power systems. This paper presents an adaptive online disturbance location method that considers the anisotropy of the frequency propagation speed (FPS). The method geographically partitions the studied power system into several different regions offline. It then extracts the FPS vector for events occurring in each region. The method uses one event simulation for each region. The online simulations take into account changes in the generation, load and power grid topology. The location of the disturbance in each region is estimated specifically based on the speed vector of the region. Parallel computing is used to accelerate the estimation procedure. A part of the North and Central China interconnected power grid, which covers 7 provinces, is selected as an example to verify the effectiveness of the proposed disturbance location method and to analyze the speedup properties of the parallel computing.

Original languageEnglish
Article number7105965
Pages (from-to)931-941
Number of pages11
JournalIEEE Transactions on Power Systems
Volume31
Issue number2
DOIs
Publication statusPublished - Mar 2016
Externally publishedYes

Keywords

  • disturbance location
  • Dynamic frequency responses
  • parallel computing
  • phasor measurement unit (PMU)
  • power system

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