Bidding Strategy of Energy Storage Participating in the Auxiliary Market of Peak and Frequency Modulation in New Power System

doi:10.11930/j.issn.1004-9649.202301059

Abstract

Abstract: Under the green and low-carbon energy transition, the gap of peak and frequency modulation in the power system is increasing. With the flexible climbing and bidirectional regulation characteristics, energy storage can be an independent subject or an internal member of a virtual power plant (VPP) to coordinate and solve the problems of peak and frequency modulation and new energy consumption. This paper analyzes the general situation of energy storage participating in the electric power market in China and abroad and establishes the VPP aggregated multi-distributed energy resource (DER) peak modulation bidding model and peak modulation bidding strategy with maximum overall benefit. Based on the joint clearing model of the electricity energy and frequency modulation market with the goal of minimizing the cost of power generation and frequency modulation, an efficiency factor is introduced to reflect the advantages of fast frequency modulation resources. An example is given to verify that the income of energy storage distribution under the VPP bidding strategy is better than the independent operation mode. Compared with the sequential clearing mode, the fire-storage combined clearing model of traditional and fast frequency modulation trading varieties participating in the day-ahead market design has higher social benefits. The introduction of the efficiency factor can enhance the enthusiasm of high-quality frequency modulation resources to participate in the market and save the total frequency modulation cost of the power grid.

Key words: flexible climbing, bidirectional regulation, peak modulation bidding strategy, efficiency factor

YU Haibin, DONG Shuai, LU Zengjie, ZHOU Yi, WEN Guanglei, ZHANG Yu, GAO Yiling, LI Xueyan. Bidding Strategy of Energy Storage Participating in the Auxiliary Market of Peak and Frequency Modulation in New Power System[J]. Electric Power, 2023, 56(8): 48-60.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202301059

https://www.electricpower.com.cn/EN/Y2023/V56/I8/48

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