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Detecting the location of short-circuit faults in active distribution network using pmu-based state estimation

Gholami, M ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1109/TSG.2019.2937944
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2020
  4. Abstract:
  5. With the rapid advancement of phasor measurement units (PMUs) technology, system operators in different level of power systems have access to new and abundant measurements. Taking into account these measurements in active distribution systems (ADNs), a new algorithm for short-circuit fault detection and identification based on state estimation (SE) is introduced in this paper. In this regard, as the first step, traditional SE process is revised to be compatible with fault conditions. Then, a fault location algorithm (FLA) based on the revised SE (RDSSE) is presented which attends to detect the location of fault after diagnosing faulted zone. For this purpose, current and voltage synchrophasors captured by PMUs as well as pre-fault SE results are used and according to calculated measurement residual indexes, the correct location of fault is diagnosed. The performance of RDSSE and SE based fault location method are tested by applying on an ADN, considering different fault scenarios in the network. The results proved that the proposed method is more accurate and reliable than traditional SE based methods in fault conditions and can precisely determine the real location of fault at lower SE execution times. © 2010-2012 IEEE
  6. Keywords:
  7. Active distribution networks ; Phasor measurement units ; Pseudo-measurements ; Short-circuit fault location ; State estimation ; Fault detection ; Location ; Phase measurement ; Timing circuits ; Active distribution systems ; Fault location algorithms ; Measurement residual ; Phasor measurement unit (PMUs) ; Pseudo measurements ; Short circuit fault location ; Short-circuit fault
  8. Source: IEEE Transactions on Smart Grid ; Volume 11, Issue 2 , 2020 , Pages 1396-1406
  9. URL: https://ieeexplore.ieee.org/document/8818328