考虑削峰服务的电动汽车集群最优充放电策略

赵林昕; 李成鑫; 桂江一; 刘林

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电力建设 ›› 2025

考虑削峰服务的电动汽车集群最优充放电策略

赵林昕¹, 李成鑫¹, 桂江一², 刘林¹

作者信息 +

Study on Optimal Charging and Discharging Strategies for Electric Vehicle Clusters Taking into Account Power Peak Shaving

ZHAO Linxin¹, LI Chengxin¹, GUI Jiangyi², LIU Lin¹

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文章历史 +

摘要

【目的】在含新能源的“源网荷储”系统中,为优化参与削峰辅助服务电动汽车用户和负荷聚合商收益,建立了考虑各时段削峰需求程度的电动汽车集群充放电策略优化模型,并优化了参与削峰后续时段电动汽车集群充放电策略。【方法】首先,评估新能源出力场景下的各时段削峰需求;其次,基于各时段削峰需求程度,以负荷聚合商和电动汽车用户双方总期望收益最大为目标,建立电动汽车集群充放电策略优化模型;最后,为避免参与削峰服务后的电动汽车集群负荷出现负荷尖峰,以负荷波动最小为目标优化后续时段充放电策略。【结果】算例分析表明,所提充放电策略可辅助平滑高峰期用电负荷,同时使负荷聚合商和电动汽车用户总期望收益最大化,并抑制了参与削峰服务后的“负荷尖峰”现象。【结论】本文所提策略相较于不考虑参与削峰服务策略电动汽车用户和负荷聚合商收益明显提高,削峰后续时段负荷波动明显降低,验证了所提方法的实用性和有效性。

Abstract

[Objective] In a “source-grid-load-storage” system incorporating renewable energy, an electric vehicle (EV) cluster charging and discharging strategy optimization model is established to optimize the revenues of EV users and load aggregators participating in peak shaving ancillary services, considering the peak shaving demand levels across different time periods. [Methods] First, the peak shaving demand for each time period under renewable energy production scenarios is assessed. Second, based on the level of peak shaving demand in each time period, an optimization model for the charging and discharging strategy of the EV cluster is developed with the objective of maximizing the total expected revenue for both load aggregators and EV users. Finally, to prevent peak load occurrences after participating in peak shaving services, the charging and discharging strategy for subsequent time periods is optimized with the goal of minimizing load fluctuations. [Results] Case analysis demonstrates that the proposed charging and discharging strategy can assist in smoothing electricity load during peak periods, maximize the total expected revenue for load aggregators and EV users, and mitigate the occurrence of load peaks after participating in peak shaving services. [Conclusions] The proposed strategy in this paper significantly improves the benefits of EV users and load aggregators compared to the strategy without considering participation in peak shaving service, and the load fluctuations in the subsequent period of peak shaving is significantly reduced, which verifies the practicality and effectiveness of the proposed method.

导出引用

赵林昕, 李成鑫, 桂江一, 刘林. 考虑削峰服务的电动汽车集群最优充放电策略[J]. 电力建设. 2025

ZHAO Linxin, LI Chengxin, GUI Jiangyi, LIU Lin. Study on Optimal Charging and Discharging Strategies for Electric Vehicle Clusters Taking into Account Power Peak Shaving[J]. Electric Power Construction. 2025

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