Railway Power Quality Manage System Capacity Optimization Design
Luo Pei1, 3, Chen Yuehui2, Luo Longfu1, Zhou Guangong2, Zhang Zhiwen1
1. College of Information Engineering Hunan University Changsha 410082 China; 2. State Grid Hunan Electric Power Company Changsha 410012 China; 3. College of Information Engineering Xiangtan University Xiangtan 411105 China
Abstract：Considering the capacity optimization of railway power quality manage system (RPQMS), this paper analyzes the optimal compensation principle, and derives the mathematical relationship between power quality parameters of V/v traction power supply system grid side and RPQMS capacity optimization compensation coefficient. Finally an optimized model is established, where the minimum capacity of RPQMS compensation capacity is taken as the objective function, the power quality parameter is taken as the constraint condition, and RPQMS capacity optimization compensation coefficient as the decision variable. The globally optimal solution of the compensation coefficient and the minimum of the compensation capacity are obtained by Differential Evolution algorithm. Simulation and experimental results show that the method can reach optimal compensation effect as well as the power quality index in the whole load range, which significantly reduces RPQMS compensation capacity.
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2016, Vol. 31 
