Energy Storage Science and Technology ›› 2023, Vol. 12 ›› Issue (2): 477-485.doi: 10.19799/j.cnki.2095-4239.2022.0439

• Energy Storage System and Engineering • Previous Articles     Next Articles

Influence of installed capacity of energy storage system and renewable energy power generation on power system performance

Haidong CHEN1(), Fei MENG1, Qing WANG1, Feng HOU2, Yi WANG3, Zhihua ZHANG4   

  1. 1.State Grid Ningxia Electric Power Co. , Ltd.
    2.State Grid Ningxia Electric Power Co. , Ltd. , Training Center, Yinchuan 750001, Ningxia, China
    3.State Grid Ningxia Electric Power Co. , Ltd. , Electricity Supply Company of Shizuishan, Shizuishan 753000, Ningxia, China
    4.State Grid Shaanxi Electric Power Co. , Ltd. , Institute of Electricity Science, Xi'an 710000, Shaanxi, China
  • Received:2022-08-08 Revised:2022-09-30 Online:2023-02-05 Published:2023-02-24
  • Contact: Haidong CHEN E-mail:2022@163.com

Abstract:

With the continuous advances in carbon peaking and carbon neutrality goals, the installed capacity of renewable energy will continue to grow. However, renewable energy power generation is unstable. Therefore, it is essential to analyze the impact of changes in the installed capacity and energy storage system capacity of renewable energy on power grid performance. Considering wind power, photovoltaic power, thermal power, and energy storage, a power system dispatch model of one province grid is proposed in this study, and information gap decision theory and the Monte Carlo method are used to simulate the uncertainty of user load and renewable energy power generation. The simulation results show that, when the installed capacity of renewable energy is doubled, the proportion of renewable energy power generation increases by 62.6%; also, the operating cost increases by 18.7%. When the energy storage system capacity is increased from 0 to 15 GW, the operating cost decreases by 14.4%, and the proportion of new energy power generation increases by 22%. In addition, when the new energy consumption rate is lower than 95%, an increase in energy storage capacity will mainly increase the new energy consumption; when it is higher than 95%, an increase in energy storage capacity will significantly reduce the power grid volatility. This study provides certain guiding significance for configuring the installed capacity of renewable energy and energy storage systems for constructing low-carbon energy and smart grids in the future.

Key words: energy storage system, power system, renewable energy, installed capacity, Monte Carlo method, information gap decision theory

CLC Number: