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基于集成深度置信网络的精细化电力系统暂态稳定评估
Refined Transient Stability Evaluation for Power System Based on Ensemble Deep Belief Network
- 电力系统自动化-方正平台 2020年第6期 页码：17-26
- 作者机构：
北京交通大学电气工程学院， 北京市 100044
- 作者简介：
李宝琴(1996—)，女，博士研究生，主要研究方向：人工智能、电力系统暂态稳定。E-mail： 18121454 @bjtu.edu.cn
吴俊勇(1966—)，男，通信作者，博士，教授，博士生导师，主要研究方向：电力系统分析与控制、智能电网、全球能源互联网。E-mail：wujy@bjtu.edu.cn
邵美阳(1996—)，女，硕士研究生，主要研究方向：人工智能、电力系统暂态稳定。E-mail： 17121486@bjtu.edu.cn
- 基金信息：国家重点研发计划资助项目(2018YFB0904500);国家自然科学基金资助项目(51577009)
DOI：10.7500/AEPS20190528009
中图分类号：收稿日期：2019-05-28，
修回日期：2019-08-26，
网络出版日期：2020-02-03，
纸质出版日期：2020-03-25
- 稿件说明：
移动端阅览
李宝琴,吴俊勇,邵美阳等.基于集成深度置信网络的精细化电力系统暂态稳定评估[J].电力系统自动化,2020,44(06):17-26.
LI Baoqin,WU Junyong,SHAO Meiyang,et al.Refined Transient Stability Evaluation for Power System Based on Ensemble Deep Belief Network[J].Automation of Electric Power Systems,2020,44(06):17-26.
李宝琴,吴俊勇,邵美阳等.基于集成深度置信网络的精细化电力系统暂态稳定评估[J].电力系统自动化,2020,44(06):17-26. DOI： 10.7500/AEPS20190528009.
LI Baoqin,WU Junyong,SHAO Meiyang,et al.Refined Transient Stability Evaluation for Power System Based on Ensemble Deep Belief Network[J].Automation of Electric Power Systems,2020,44(06):17-26. DOI： 10.7500/AEPS20190528009.
摘要
为了进一步提高电力系统暂态稳定的预测精度及给出更精细化的评估结果，将深度学习与电力系统暂态稳定相结合，根据故障切除后发电机功角“轨迹簇”特征，提出一种基于集成不同结构的深度置信网络（DBN）的精细化电力系统暂态稳定评估模型。该模型的基分类器DBN能够有效地利用深层架构所具有的特征提取能力，充分挖掘出输入特征与暂态稳定评估结果之间的非线性映射关系。在新英格兰10机39节点系统上的实验结果表明，该方法不仅优于浅层学习框架，也比部分深度学习模型的性能更加优越。除此之外，该集成DBN算法不仅有较高的预测精度，而且可以有效地评估系统的稳定裕度和不稳定程度等级；在部分同步相量测量装置信息缺失以及含有噪声时，表现出较强的鲁棒性。
Abstract
In order to further improve the prediction accuracy of transient stability for power system and give more refined evaluation results
the deep learning is combined with the transient stability of power system. A refined evaluation model of transient stability for power system based on ensemble deep belief network (DBN) with different structures is proposed based on the characteristics of the generator power angle "trajectory cluster" after fault removal. The base classifier DBN of the model can effectively utilize the feature extraction ability of the deep architecture and fully exploit the nonlinear mapping relationship between the input features and the evaluation results of transient stability. Experimental results on the New England 10-machine 39-node system show that this method is not only superior to the shallow learning framework
but also superior to the partial deep learning model. In addition
the ensemble DBN algorithm not only has higher prediction accuracy
but also can effectively evaluate the stability margin and instability level of the system. It shows strong robustness when some information of phasor measurement unit (PMU) is missing and contains noise.
关键词
Keywords
references
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