Electric Power ›› 2022, Vol. 55 ›› Issue (7): 110-120.DOI: 10.11930/j.issn.1004-9649.202202024

• Power System • Previous Articles     Next Articles

Integrated Planning of Optimal Sizing and Siting of Energy Storage Plants Across Wide Area

CAO Xinhui1, CHE Yong2, SI Zheng3, KAI Saijiang2, ZHOU Zhuan2, YUAN Tiejiang3   

  1. 1. State Grid Xinjiang Electric Power Co., Ltd. Economic and Technical Research Institute, Urumqi 830000, China;
    2. State Grid Xinjiang Electric Power Company, Urumqi 830000, China;
    3. School of Electrical Engineering, Dalian University of Technology, Dalian 116023, China
  • Received:2022-02-14 Revised:2022-04-25 Online:2022-07-28 Published:2022-07-20
  • Supported by:
    This work is supported by Science and Technology Project of SGCC (Research and Application of Optimal Integration Technology for Prefabricated Microgrid Energy Storage Power Station)

Abstract: Aiming at optimal sizing and siting of energy storage plants in large-scale wind power systems, an integrated planning method was developed to realize the optimal sizing and siting of energy storage plants across wide area. First, based on the four-quadrant operation characteristics of energy storage devices, the effect mechanism of optimal sizing and siting of energy storage plants on static voltage stability and wind energy accommodation, facing simple radiant networks and complex networks, was comprehensively demonstrated by PV curve, and the concept of sizing and siting of energy storage plants was put forward. On this basis, the static voltage stability and wind energy accommodation in the company of network loss and energy storage investment were comprehensively considered. An integrated planning model was developed with annual income of wind power consumption maximal and static voltage stability margin change rate, loss cost and annual investment cost of energy storage plants minimal as the objective. Finally, a Genetic algorithm embedded power flow and particle swarm optimization was designed to solve this model. The validity of the proposed method was verified by the simulation tests carried out on large-scale wind power base in Zhundong, Xinjiang.

Key words: energy storage plant, siting, static voltage stability, new energy, capacity allocation