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Physics-Informed Evolutionary Strategy Based Control for Mitigating Delayed Voltage Recovery
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DOI：10.1109/TPWRS.2021.3132328.png)
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摘要
En 中文
In this work we propose a novel data-driven, real-time power system voltage control method based on the physics-informed guided meta evolutionary strategy (ES). The main objective is to quickly provide an adaptive control strategy to mitigate the fault-induced delayed voltage recovery (FIDVR) problem. Reinforcement learning methods have been developed for the same or similar challenging control problems, but they suffer from training inefficiency and lack of robustness for corner or unseen scenarios. On the other hand, extensive physical knowledge has been developed in power systems but little has been leveraged in learning-based approaches. To address these challenges, we introduce the trainable action mask technique for flexibly embedding physical knowledge into RL models to rule out unnecessary or unfavorable actions, and achieve notable improvements in sample efficiency, control performance and robustness. Furthermore, our method leverages past learning experience to derive surrogate gradient to guide and accelerate the exploration process in training. Case studies on the IEEE 300-bus system and comparisons with other state-of-the-art benchmark methods demonstrate effectiveness and advantages of our method.
Keyword:
Voltage control
Training
Adaptation models
Robustness
Real-time systems
Search problems
Power system stability
Action mask
evolutionary strategy
physics-informed
reinforcement learning
voltage control
FIDVR
期刊
IF:
7.2
论文数:
1.1W
被引数:
5.0W
机构
引用论文
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