• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

ELECTRIC POWER CONSTRUCTION ›› 2015, Vol. 36 ›› Issue (12): 76-83.doi: 10.3969/j.issn.1000-7229.2015.12.012

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Battery Energy Storage System Optimal Allocation Considering Economy and Reliability of Distribution Network

LIU Fang, LI Bing, ZHANG Fan   

  1. State Grid Jibei Electric Power Company Limited Economic Research Institute, Beijing 100045, China
  • Online:2015-12-01

Abstract:

 Economy and reliability are two indexes that must be considered in the optimal allocation process of energy storage system. However, they cannot achieve the optimum simultaneously. In order to coordinate the contradiction, a multi-objective optimal allocation model of battery energy storage system (BESS) with considering the economy and reliability was built. Firstly, according to the current situation that the reliability evaluation method of system with energy storage element was complex, and its computing speed was slow, a simple reliability evaluation method of distribution network with distribution generation (DG) and BESS was proposed, in which the contribution of energy storage configuration to the reliability improvement of distribution network was quantified, and two reliability indexes, continuous power supply time increment and power supply increment were obtained. Secondly, with the goal of maximizing the annual net income of distribution network, the continuous power supply time increment and power supply increment of energy storage system during distribution system fault, the multi-objective optimal allocation model of BESS was established. The improved strength Pareto evolutionary algorithm (ISPEA) was applied to solve the Pareto front of this multi-objective model. Simulation calculation was carried on IEEE-33 nodes distribution system, whose results verified the feasibility and effectiveness of the proposed model.

Key words: battery energy storage system, optimal allocation, annual net income of distribution network, reliability, Pareto front, distributed photovoltaic

CLC Number: