Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (10): 3246-3256.doi: 10.19799/j.cnki.2095-4239.2022.0065

• Energy Storage System and Engineering • Previous Articles     Next Articles

Research on the configuration method & tool for the hybrid energy storage system on the power generation side

Wenqiang YANG(), Bin CHANG()   

  1. National Institute of Clean and Low-carbon Energy, Beijing 100024, China
  • Received:2022-01-12 Revised:2022-03-02 Online:2022-10-05 Published:2022-10-10
  • Contact: Bin CHANG E-mail:20029587@chnenergy.com.cn;20052143@chnenergy.com.cn

Abstract:

Energy storage (ES) is a key technology that promotes the transition of energy consumption from fossil fuels to renewable energy. ES plays an important role in improving the consumption rate of clean energy, ensuring a stable operation of the power system, improving the thermal power plant's efficiency, and enhancing its power quality. This study focuses on the ES system configuration for the primary frequency regulation of the renewable power plants. This paper thoroughly considers the output characteristics and costs of different ES technologies, life cycle of the ES system, related economic issues, and several other factors to develop a hybrid ES configuration strategy for the renewable power plants. Based on multi-constrained targets, including power and energy balance, state-of-charge limits, statistics of the ES output confidence level, etc., the numerical analysis theories, including the multi-time-scale wavelet analysis, ES capacity iterative optimization algorithm, and rain-flow counting battery life prediction model are used to develop the ES system configuration methods. Based on MATLAB, a dedicated calculation tool is developed. This paper verifies the developed hybrid ES configuration methods through a 400 MW wind farm participating in the primary frequency regulation.

Key words: energy storage, hybrid energy storage, configuration methods

CLC Number: