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1.浙江工业大学信息工程学院,浙江省杭州市 310023
2.浙江大学电气工程学院,浙江省杭州市 310007
冯昌森(1990—),男,博士,副教授,主要研究方向:电力系统优化与控制、电力市场、机器学习等。E-mail:fcs@zjut.edu.cn
汤飞霞(1999—),女,硕士,主要研究方向:电力系统优化与控制、机器学习等。E-mail:fxtang2024@163.com
王国烽(1993—),男,博士,讲师,主要研究方向:综合能源系统低碳优化、电力系统优化控制、新能源发电装置与技术等。E-mail:wgf@zjut.edu.cn
张有兵(1971—),男,通信作者,教授,博士生导师,主要研究方向:智能电网、分布式发电及新能源优化控制、电动汽车入网、电力系统通信、电能质量监控。E-mail:youbingzhang@zjut.edu.cn
收稿:2024-09-19,
修回:2024-11-19,
网络出版:2025-02-08,
纸质出版:2025-04-25
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冯昌森,汤飞霞,王国烽等.基于融合经验安全强化学习的配电网电压控制[J].电力系统自动化,2025,49(8):169-177.
FENG Changsen,TANG Feixia,WANG Guofeng,et al.Volt-VAR Control for Distribution Network Based on Safe Reinforcement Learning with Mixed Experiences[J].Automation of Electric Power Systems,2025,49(8):169-177.
冯昌森,汤飞霞,王国烽等.基于融合经验安全强化学习的配电网电压控制[J].电力系统自动化,2025,49(8):169-177. DOI: 10.7500/AEPS20240919003.
FENG Changsen,TANG Feixia,WANG Guofeng,et al.Volt-VAR Control for Distribution Network Based on Safe Reinforcement Learning with Mixed Experiences[J].Automation of Electric Power Systems,2025,49(8):169-177. DOI: 10.7500/AEPS20240919003.
随着分布式可再生能源在配电网中的渗透率逐渐提高,分布式并网逆变器参与电压-无功控制对提升电力系统运行的安全性和经济性具有重要意义。然而,在基于强化学习的电压-无功控制模型中,安全运行约束难以建模,且无法确保控制策略满足运行约束。针对上述问题,文中提出一种基于安全强化学习的配电网电压控制策略。首先,将带约束的电压控制问题建模为约束马尔可夫决策过程。然后,采用原始-对偶方法学习最优策略,确保控制策略满足系统运行约束。随后,引入增强经验融合方法来改进强化学习经验利用方式,从而提高算法样本效率。最后,通过配电系统算例验证了所提方法的有效性。
With the increasing penetration of distributed renewable energy sources in the distribution network
the participation of distributed grid-connected inverters in volt-VAR control (VVC) is of great significance to improve the safety and economy of power system operation. However
the safety operation constraints are difficult to model in the VVC control model based on reinforcement learning
and it is not possible to ensure that the control strategy satisfies the operation constraints. To address the above problems
this paper proposes a VVC strategy for distribution networks based on the safe reinforcement learning. Firstly
the voltage control problem with constraints is modeled as a constrained Markov decision process. Then
a primal-dual approach is used to learn the optimal policy to ensure that the control policy satisfies the system operation constraints. Furthermore
an enhanced experience fusion method is introduced to improve the utilization of reinforcement learning experience
so as to improve the sample efficiency of the algorithm. Finally
the effectiveness of the proposed method is verified by the distribution system case.
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