• 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 ›› 2022, Vol. 43 ›› Issue (1): 132-142.doi: 10.12204/j.issn.1000-7229.2022.01.015

• Power Economic Research • Previous Articles    

Economic Analysis of Multi-type Energy Storages Considering the Deep Peak-Regulation of Thermal Power Units

ZHANG Songyan1,2(), MIAO Shihong1,2(), YIN Binxin1,2(), YAO Fuxing1,2(), WANG Tingtao1,2()   

  1. 1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology (Huazhong University of Science and Technology), Wuhan 430074,China
    2. Hubei Electric Power Security and High Efficiency Key Laboratory (Huazhong University of Science and Technology), Wuhan 430074,China
  • Received:2021-06-08 Online:2022-01-01 Published:2021-12-21
  • Contact: MIAO Shihong E-mail:songyan_zhang@163.com;shmiao@hust.edu.cn;seeeybx@hust.edu.cn;yaofuxing@hust.edu.cn;hustwtt@hust.edu.cn
  • Supported by:
    National Natural Science Foundation of China(51777088)

Abstract:

In the context of the large-scale access of clean energy and the increasing pressure of peak-shaving power grids, energy storage devices and deep peak-shaving thermal power units, as important adjustment resources to promote the absorption of new energy and suppress the peak-valley difference of the power grid, have been widely concerned by academia and industry. Considering the characteristics of multi-type energy storage devices and combined with the deep peak-shaving characteristics of thermal power units, this paper compares and analyzes the economic benefits of different types of energy storage devices assisting deep peak-shaving of thermal power units. Firstly, by fully considering the technical, economic characteristics and development prospects of multi-type energy storages, the most representative three kinds of energy storage systems: pumped storage, compressed-air energy storage and lithium-ion battery energy storage are selected, and the relevant system operation models are established. Secondly, considering the deep peak-shaving characteristics of thermal power units, the operation model and economic model of thermal power units are established. Thirdly, considering the life-cycle cost of multiple-type energy storage systems, a day-ahead economic dispatch model of multi-type energy storage systems considering the deep peak-shaving of thermal power units is constructed, and a comparative analysis of the economics of multi-type energy storage is carried out accordingly. Finally, on the basis of the typical daily data in a certain area, a simulation example is carried out to compare and analyze the economic benefits of multi-type energy storage power stations, and the recommendations of energy storage capacity configuration are put forward.

Key words: multi-type energy storage, thermal power unit, deep peak regulation, life cycle, economic analysis

CLC Number: