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西安交通大学电气工程学院,陕西省西安市 710049
黄玉雄(1995—),男,博士研究生,主要研究方向:电力系统可靠性、人工智能在电力系统的应用、综合能源系统。E-mail:hyx.xj@stu.xjtu.edu.cn
李更丰(1983—),男,博士,副教授,主要研究方向:电力系统可靠性、综合能源系统与主动配电网技术。E-mail:gengfengli@xjtu.edu.cn
张理寅(1999—),男,硕士研究生,主要研究方向:弹性电力系统、人工智能在电力系统的应用。E-mail:zhangliyin@stu.xjtu.edu.cn
别朝红(1970—),女,通信作者,博士,教授,主要研究方向:电力系统规划及可靠性评估、新能源电力系统安全风险评估、弹性电力系统。E-mail:zhbie@mail.xjtu.edu.cn
收稿:2021-06-07,
修回:2021-11-08,
网络出版:2022-02-24,
纸质出版:2022-04-25
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黄玉雄,李更丰,张理寅等.弹性配电系统动态负荷恢复的深度强化学习方法[J].电力系统自动化,2022,46(8):68-78.
HUANG Yuxiong,LI Gengfeng,ZHANG Liyin,et al.Deep Reinforcement Learning Method for Dynamic Load Restoration of Resilient Distribution Systems[J].Automation of Electric Power Systems,2022,46(8):68-78.
黄玉雄,李更丰,张理寅等.弹性配电系统动态负荷恢复的深度强化学习方法[J].电力系统自动化,2022,46(8):68-78. DOI: 10.7500/AEPS20210607005.
HUANG Yuxiong,LI Gengfeng,ZHANG Liyin,et al.Deep Reinforcement Learning Method for Dynamic Load Restoration of Resilient Distribution Systems[J].Automation of Electric Power Systems,2022,46(8):68-78. DOI: 10.7500/AEPS20210607005.
极端事件下,合理利用微网盈余电力供应配电系统中的关键负荷,可有效提升电网弹性。基于深度强化学习(DRL)技术,提出一种考虑微网参与的配电系统动态关键负荷恢复(DCLR)方法,支持以无模型的方式求解复杂问题,以提升在线计算效率。首先,分析含微网的配电系统DCLR问题,并在此基础上构建其马尔可夫决策过程,其中考虑了配电系统运行、微网运行和用户满意度等约束条件。其次,基于OpenDSS构建DCLR模拟环境,形成DRL应用所需的智能体-环境交互接口,进一步采用深度Q网络算法搜寻关键负荷恢复的最优控制策略,并定义收敛性、决策能力指标分别用于评价智能体的训练和应用表现。最后,基于改进的IEEE测试系统验证了所提方法的有效性。
In extreme events
it can effectively enhance the grid resilience by using surplus power of microgrids to serve the critical loads in distribution systems. Based on the deep reinforcement learning (DRL) technique
considering the participation of microgrids
a dynamic critical load restoration (DCLR) method of distribution systems is proposed to support the model-free manner to solve the complex problems
significantly improving the online computational efficiency. Firstly
the DCLR problem of distribution systems with microgrids is analyzed. On this basis
its Markov decision process (MDP) is formulated considering the complex operational constraints
including the distribution operation constraints
microgrid operation constraints
customer satisfaction degree
etc. Secondly
a DCLR simulation environment is built based on OpenDSS as the agent-environment interface for applying DRL algorithms. Furthermore
a deep Q-network algorithm is adopted to search for the optimal policies of the critical load restoration. The convergence and decision-making ability indices are defined to measure the performance of the agents in training and application processes
respectively. Based on the two modified IEEE test systems
the effectiveness of the proposed method is verified.
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