Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (2): 573-582.doi: 10.19799/j.cnki.2095-4239.2021.0410

• Energy Storage System and Engineering • Previous Articles     Next Articles

Research on the optimal strategy of pumped-storage power station to provide multiple time-scale reserves

Xiaopeng YU1(), Xiaomeng LI1(), Zhong ZHANG2, Yuanzhao HAO1, Chenghao LI1, Xingwei CHEN1, Wei CUI1, Ze GAO1   

  1. 1.Electric Power Research Institute of State Grid Henan Electric Power Company, Zhengzhou 450052, Henan, China
    2.School of Electrical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2021-08-09 Revised:2021-08-19 Online:2022-02-05 Published:2022-02-08
  • Contact: Xiaomeng LI E-mail:xmli97@126.com;lixiaomeng@ha.sgcc.com.cn

Abstract:

In the background of peak carbon emissions and carbon neutrality, renewable energy generation will become the main generation form in future power systems. Simultaneously, randomness and volatility increase the reserve requirement in different time scales. Pumped-storage power station (PSPS), a mature type of energy storage, has the advantages of fast regulation speed and large capacity, and it has increasing importance in the aspect of ancillary services. Trading off the benefits of energy storage in the energy market and the multiple time-scale reserve market to maximize its benefits is an important issue for PSPS waiting to be addressed. In this regard, this paper establishes an optimal decision-making model for PSPS to participate in the energy market and the multiple time-scale reserve market. The impact of reserve compensation prices on the operation strategies is further analyzed. This work provides a solution for PSPS to participate in the electric energy market. Case studies show that the total revenue of PSPS is significantly increased through providing reserve service. The total revenue of PSPS when providing multiple time-scale reserves is higher than that when providing a single reserve service. In the test case, the total revenue of PSPS when providing multiple time-scale reserves is increased by 44.37% at least.

Key words: pumped storage power station, multiple time-scale reserves, energy market, market strategy

CLC Number: