报告主题：Application of Wirtinger Derivative in the Analysis of Power Flow Jacobian Singularity
报告人：Yue Song
会议时间：11月4日(周五) 10:00
会议地点：腾讯会议147-200-496
主办单位：重庆大学、输配电装备及系统安全与新技术国家重点实验室、重庆大学溧阳智慧城市研究院
协办单位：四川大学、电子科技大学、西南交通大学、成都理工大学、成都中医药大学、四川师范大学、西华大学、西南科技大学、西南大学、重庆邮电大学、重庆科技学院
Personal Profile:
Yue Song received B.S. and M.S. degrees from Shanghai Jiao Tong University, in 2011 and 2014, respectively, and the Ph.D. degree from The University of Hong Kong (HKU), in 2017, all in electrical engineering. He was a Postdoctoral Fellow at HKU from Sep 2017 to Apr 2020. He is currently a Research Assistant Professor in the Department of Electrical and Electronic Engineering at HKU. He is a recipient of the Hong Kong Ph.D. Fellowship. He serves as an Area Editor for EAI Endorsed Transactions on Energy Web, and a guest editor for Frontiers in Energy Research, Energies, and Complexity. His research interests include control theory, optimization theory, and network science with applications to energy systems and network systems.
Abstract:
Power flow Jacobian singularity is an important characterization for voltage stability limit. n this talk, a necessary and sufficient condition for power flow Jacobian singularity in distribution systems is established with the application of Wirtinger derivative. This condition can be interpreted as a generalization of the admittance matching condition in the single-load infinite- bus system, showing the role of power network, loads and DGs in voltage stability. In addition, a new voltage stability index is proposed based on this singularity condition. Numerical simulations on IEEE test systems verify that this index has good linearity with load increase and estimates voltage stability margin with high precision.
