arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2012.00803eess.SYcs.SY
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基于PMU量测的Q学习发电机参数估计

Generator Parameter Estimation by Q-Learning Based on PMU Measurements

Seyyed Rashid Khazeiynasab, Junjian Qi, Issa Batarseh

摘要:

提出了一种基于Q学习的同步发电机参数估计新方法。事件回放用于在不同参数下生成模型输出,用于在Q学习中训练代理。我们假设模型中某些参数的确切值在Q学习中不为智能体所知。然后,最优的历史依赖的政策的勘探开发权衡计划。在给定先验知识的情况下,参数向量可以被视为具有特定奖励的状态,该奖励是与测量值相比的拟合误差的函数。智能体采取行动(增加或减少参数),估计的参数将移动到一个新的状态。基于奖励函数,最优动作策略将参数集移动到具有最高奖励的状态。如果有多个事件可用,则将顺序使用它们,以便可以利用更新的$\mathbfcal{Q}$值来提高计算效率。通过对同步发电机动态模型参数的估计,验证了该方法的有效性。

英文摘要:

In this paper, a novel Q-learning based approach is proposed for estimating the parameters of synchronous generators using PMU measurements. Event playback is used to generate model outputs under different parameters for training the agent in Q-learning. We assume that the exact values of some parameters in the model are not known by the agent in Q-learning. Then, an optimal history-dependent policy for the exploration-exploitation trade-off is planned. With given prior knowledge, the parameter vector can be viewed as states with a specific reward, which is a function of the fitting error compared with the measurements. The agent takes an action (either increasing or decreasing the parameter) and the estimated parameter will move to a new state. Based on the reward function, the optimal action policy will move the parameter set to a state with the highest reward. If multiple events are available, they will be used sequentially so that the updated $\mathbfcal{Q}$-value can be utilized to improve the computational efficiency. The effectiveness of the proposed approach is validated by estimating the parameters of the dynamic model of a synchronous generator.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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