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西南交通大学电气工程学院,四川省成都市 611756
孙检(1998—),男,博士研究生,主要研究方向:电力系统频率稳定分析与控制。E-mail:sj_sunjian@hotmail.com
廖凯(1989—),男,博士,教授,博士生导师,主要研究方向:电力电子化电力系统稳定分析与控制、交通能源互联网。E-mail:liaokai@swjtu.edu.cn
何正友(1970—),男,通信作者,博士,教授,主要研究方向:智能电网保护与控制、电气化交通与能源电力系统融合。E-mail:hezy@swjtu.edu.cn
收稿日期:2024-10-14,
修回日期:2025-04-11,
网络出版日期:2025-06-26,
纸质出版日期:2025-08-25
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孙检,廖凯,何正友等.兼顾超低频振荡抑制与一次调频的水电集群参数优化方法[J].电力系统自动化,2025,49(16):120-131.
SUN Jian,LIAO Kai,HE Zhengyou,et al.Parameter Optimization Method for Hydropower Clusters Balancing Ultra-low-frequency Oscillation Suppression and Primary Frequency Regulation[J].Automation of Electric Power Systems,2025,49(16):120-131.
孙检,廖凯,何正友等.兼顾超低频振荡抑制与一次调频的水电集群参数优化方法[J].电力系统自动化,2025,49(16):120-131. DOI: 10.7500/AEPS20241014003.
SUN Jian,LIAO Kai,HE Zhengyou,et al.Parameter Optimization Method for Hydropower Clusters Balancing Ultra-low-frequency Oscillation Suppression and Primary Frequency Regulation[J].Automation of Electric Power Systems,2025,49(16):120-131. DOI: 10.7500/AEPS20241014003.
针对水电集群超低频振荡抑制能力与一次调频性能协同提升难、多机参数优化效率不高且依赖于专家经验的问题,提出一种水电集群参数优化方法。首先,通过多机阻尼解析模型分析水电集群超低频振荡阻尼构成,以获得超低频振荡阻尼和一次调频性能的关键影响因素及影响规律。然后,构建集成了参数优化方法与振荡安全阻尼知识的双知识辅助深度强化学习框架。其中,参数优化方法和振荡安全阻尼知识分别通过模型驱动和规则引导辅助进行学习,从而引导智能体在安全阻尼区间内高效搜索具有最优一次调频性能的水电集群参数。最后,以某水电集群为例,通过硬件在环实验验证了所提方法的有效性。
To address the issues that synergistically coordinating and enhancing the suppression capability of ultra-low-frequency oscillations and primary frequency regulation performance in hydropower clusters is difficult
as well as the optimization efficiency of multi-machine parameters is not high and dependent on expert experiences
a parameter optimization method for hydropower clusters is proposed. First
a multi-machine damping analytical model is used to analyze the composition of ultra-low-frequency oscillation damping in hydropower clusters
thereby obtaining the key influencing factors and influencing laws regarding the ultra-low-frequency oscillation damping and primary frequency regulation performance. Then
a dual-knowledge-assisted deep reinforcement learning (DRL) framework is constructed
integrating the parameter optimization method and oscillation safety damping knowledge. In this framework
the parameter optimization method and the oscillation safety damping knowledge are learned through model-driven approaches and rule-guided assistance
respectively
enabling the agent to efficiently search for optimal parameters that achieve the best primary frequency regulation performance within safety damping intervals. Finally
taking a specific hydropower cluster as a case
the effectiveness of the proposed method is validated through hardware-in-the-loop experiments.
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