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1.北京交通大学电气工程学院,北京市 100044
2.清华大学电机工程与应用电子技术系,北京市 100084
3.石家庄学院机电学院,河北省石家庄市 050035
Received:11 June 2025,
Revised:2025-08-27,
Online First:31 October 2025,
Published:10 January 2026
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李佳旭,吴俊勇,史法顺等.基于知识嵌入型深度强化学习的电力系统频率紧急控制方法[J].电力系统自动化,2026,50(1):97-107.
LI Jiaxu,WU Junyong,SHI Fashun,et al.Emergency Frequency Control Method for Power Systems Based on Knowledge-embedded Deep Reinforcement Learning[J].Automation of Electric Power Systems,2026,50(1):97-107.
李佳旭,吴俊勇,史法顺等.基于知识嵌入型深度强化学习的电力系统频率紧急控制方法[J].电力系统自动化,2026,50(1):97-107. DOI: 10.7500/AEPS20250611008.
LI Jiaxu,WU Junyong,SHI Fashun,et al.Emergency Frequency Control Method for Power Systems Based on Knowledge-embedded Deep Reinforcement Learning[J].Automation of Electric Power Systems,2026,50(1):97-107. DOI: 10.7500/AEPS20250611008.
随着新型电力系统建设的快速推进,电力系统频率安全面临的挑战愈发严峻,当系统发生故障导致频率失稳时,采取紧急控制恢复频率稳定至关重要。文中提出一种基于知识嵌入型深度强化学习(DRL)的电力系统频率紧急控制方法。首先,将频率紧急控制问题转化为马尔可夫模型,以仿真系统为强化学习环境,并基于深度确定性策略梯度(DDPG)算法构建深度强化学习智能体。此外,通过理论知识引导动作空间优化,综合考虑高频切机与低频减载两类场景。最后,在IEEE 39节点系统中进行控制效果测试,结果表明:深度强化学习智能体能够给出有效的频率紧急控制策略,维护系统频率安全;知识嵌入的方法改善了模型的训练稳定性,能显著提高智能体的策略学习效率与决策质量。
The rapid development of new power systems has exacerbated frequency security challenges
making emergency control crucial for restoring stability during faults. This paper proposes a power system emergency frequency control method based on knowledge-embedded deep reinforcement learning. First
the emergency frequency control problem is formulated as a Markov decision process
with a simulation system serving as the reinforcement learning environment
and a deep reinforcement learning (DRL) agent is constructed based on the deep deterministic policy gradient (DDPG) algorithm. Furthermore
theoretical knowledge guides the action space optimization
integrating both over-frequency generator tripping and under-frequency load shedding scenarios. Finally
the proposed method is validated on the IEEE 39-bus system
demonstrating that the DRL agent can generate effective emergency frequency control strategies to ensure system security
and the knowledge-embedded technique enhances training stability and significantly improves policy learning efficiency and decision quality.
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