Research on Multi-Scenario Optimal Scheduling Strategy of Photovoltaic Distribution and Storage System

doi:10.3969/j.issn.1008-0198.2025.02.004

Abstract

Abstract: In order to solve the coupling problem of PV distribution and storage system in multi-scenario scheduling in power market, a multi-scenario optimal scheduling strategy is proposed. Firstly, based on the uncertainty analysis of photovoltaic output, a model of energy storage to stabilize photovoltaic fluctuations is constructed. Secondly, combined with the uncertainty of electricity price, the scheduling strategy of energy storage system to participate in the power market is proposed. Finally, through the optimal scheduling framework of multiple time scales, the charging and discharging plan of the energy storage system is optimized by comprehensively considering the goals of stabilizing photovoltaic fluctuations, electric energy market income and frequency modulation market income. The simulation results show that the proposed strategy can effectively stabilize the fluctuation of PV and maximize the economic benefits in the electric energy and frequency modulation markets. Specifically, the energy storage system not only stabilizes the fluctuation of photovoltaic, but also makes a profit in the electric energy market through the strategy of low storage and high generation, and provides flexible auxiliary services in the frequency modulation market, which significantly improves the economy and stability of the system.

Key words: photovoltaic power generation, energy storage system, optimal scheduling, electric energy market, frequency modulation auxiliary service, fluctuation stabilization

CLC Number:

TM73
TM615.2

LANG Yitao, HUANG Meilong, WU Yilin, LIU Xingang, SHEN Feifan. Research on Multi-Scenario Optimal Scheduling Strategy of Photovoltaic Distribution and Storage System[J]. Hunan Electric Power, 2025, 45(2): 30-35.

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