Optimization Method for Multiple Measures to Mitigate Line Overloads in Power Systems

Jinghan He, Ninghui Han and Ziqi Wang
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Jinghan He: Power System Protection and Control Research Laboratory, Beijing Jiaotong University, Beijing 100044, China
Ninghui Han: Power System Protection and Control Research Laboratory, Beijing Jiaotong University, Beijing 100044, China
Ziqi Wang: Automation Control Design Center, State Grid Economic and Technological Research Institute, Beijing 102209, China

Energies, 2021, vol. 14, issue 19, 1-19

Abstract: Line overload is one of the important causal factors of cascading failures and blackouts in power systems. An optimization method for protection and control measures to mitigate line overloads is proposed in this study. The method consists of two main parts, i.e., the modeling process and the solving process. In the modeling process, an optimization model including overload protection and emergency control measures is developed using PFT (Power Flow Tracing). In the solving process, a multi-stage optimization method using IBSO (Improved Brain Storm Optimization algorithm) is proposed to obtain the final result. The aim of this study is to form a coordinated protection and control strategy that reduces the power on the overloaded line within the safety limits and minimizes the load loss of the power system. The simulation results show the effectiveness of the proposed method.

Keywords: line overload; overload protection; load shedding; emergency control; DC emergency control; power flow transfer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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