• 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 ›› 2020, Vol. 41 ›› Issue (12): 16-24.doi: 10.12204/j.issn.1000-7229.2020.12.002

• Planning, Design, and Technical Evaluation • Previous Articles     Next Articles

An Optimal Sizing Method for Hybrid Electrical and Thermal Energy Storage System Considering Wind Power Accommodation

ZHU Bingquan1, QIAN Weiting2, ZHANG Jun1, WAN Can2, CHEN Xinjian3, ZHU Yilun3   

  1. 1. State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310007, China
    2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
    3. Taizhou Power Supply Company of State Grid Zhejiang Electric Power Co., Ltd., Taizhou 318000, Zhejiang Province, China
  • Received:2020-08-03 Online:2020-12-01 Published:2020-12-04
  • Contact: WAN Can

Abstract:

Large scale wind power integration affects the safe and stable operation of the power system, resulting in the phenomenon of wind abandonment and limiting the development of wind power. Considering the coordinated operation of power system and thermal system, the level of wind power accommodation can be effectively improved by using a hybrid electrical and thermal energy storage system to exchange energy with power grid. This paper proposed an optimal sizing method for hybrid electrical and thermal energy storage system considering wind power accommodation. Firstly, wind power is modeled according to historical wind power data, and target grid-connected wind power meeting the grid-connected requirement is obtained. Then, the hybrid electrical and thermal energy storage system is composed of electric energy storage, electric boiler and heat storage. The optimal sizing model of the hybrid electrical and thermal energy storage system is established considering the operational constraints and taking the minimum total cost of the system as the objective and the economic and optimal sizing results of hybrid electrical and thermal energy storage system are solved. Finally, the proposed method is verified by measured data. The case study results illustrate the effectiveness of the proposed method to optimize the size of the hybrid electrical and thermal energy storage system. Furthermore, the proposed method can improve the wind power accommodation effectively and ensure the overall economic benefits of the system.

Key words: wind power accommodation, optimal sizing, hybrid energy storage system, combined heat and power

CLC Number: