赵熙临, 龚偲立, 徐光辉. 耦合储能参与度的多目标优化负荷频率控制方法[J]. 现代电力, 2023, 40(4): 554-561. DOI: 10.19725/j.cnki.1007-2322.2022.0015
引用本文: 赵熙临, 龚偲立, 徐光辉. 耦合储能参与度的多目标优化负荷频率控制方法[J]. 现代电力, 2023, 40(4): 554-561. DOI: 10.19725/j.cnki.1007-2322.2022.0015
ZHAO Xilin, GONG Sili, XU Guanghui. Multi-objective Optimization Load Frequency Control Method Based on Coupling the Participation of the Battery Energy Storage[J]. Modern Electric Power, 2023, 40(4): 554-561. DOI: 10.19725/j.cnki.1007-2322.2022.0015
Citation: ZHAO Xilin, GONG Sili, XU Guanghui. Multi-objective Optimization Load Frequency Control Method Based on Coupling the Participation of the Battery Energy Storage[J]. Modern Electric Power, 2023, 40(4): 554-561. DOI: 10.19725/j.cnki.1007-2322.2022.0015

耦合储能参与度的多目标优化负荷频率控制方法

Multi-objective Optimization Load Frequency Control Method Based on Coupling the Participation of the Battery Energy Storage

  • 摘要: 大规模可再生能源并网造成电网等效转动惯量降低和传统火电机组调频备用容量不足等问题。虽然储能的参与为该问题的解决提供了有效的途径,但储能参与度与调频成本间的关联需深入探讨,对此提出一种根据区域调频需求差异进行储能参与度调整的控制方案。首先,通过区域扰动识别设计驱动环节增强储能输出;然后,考虑储能充放电深度对其循环使用寿命的影响,设计以调频效果、储能调频成本为目标的优化问题,并利用多目标遗传算法进行该优化问题求解,获取储能参与调频的最优责任分配;仿真结果表明:相较于传统负荷频率控制的储能参与方式,所提控制方案能够充分挖掘储能辅助调频潜力,在调频效果与储能参与调频的成本间获取更好的平衡。

     

    Abstract: Grid-connection of large-scale renewable energy lead to such problems as reduction of equivalent rotating inertia of power grid, insufficient reserve capacity of traditional thermal power plants, and so on. Although the participation of energy storage provides an effective way to solve this problem, however the relevance between the degree of participation of energy storage and the cost of frequency regulation needs in-depth exploration. For this reason, a control scheme, in which according to the demand difference of regional frequency regulation the participation degree of energy storage was adjusted, was proposed. Firstly, by means of regional disturbance identification a drive link was designed to enhance the output of energy storage. Secondly, considering the impact of the depth of charging/discharging of energy storage on its lifetime of cycle use, an optimization problem, which took the effect of frequency regulation and the cost of energy storage frequency regulation as objectives, was designed and solved by multi-objective genetic algorithm to obtain the optimal responsibility assignment of energy storage participating frequency regulation. Simulation results show that comparing with participating way of traditional load frequency control, using the proposed control scheme the potential of auxiliary frequency modulation of battery energy storage can be fully tapped, and a better balance between the frequency regulation effect and the cost of energy storage participating frequency regulation could be obtained.

     

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