A Data-Driven Approach for Classification of Incipient Faults in Transmission Networks
Speaker
Gary W. Chang
National Chung Cheng University, Taiwan
Title
"A Data-Driven Approach for Classification of Incipient Faults in Transmission Networks "
Abstract
Voltage sags or swells are often manifested as the permanent or incipient faults occurred in the power system because of equipment malfunctions or failures. The incipient faults which are originally self-cleaning faults may repeatedly occur and gradually develop into a permanent fault after its first occurrence. The incipient fault detection is considered as a crucial task in predictive maintenance for power apparatuses such as transformers, circuit breakers, and underground cables. This presentation describes a hybrid method for incipient faults detection and classification.
The proposed method firstly adopts different methods to extract peculiar features from voltage waveforms of abnormal phases recorded by power quality monitors at high voltage substations in a transmission system. Then, the feature selection methods are applied to classify various types of incipient faults. Test results show that the proposed method contributes relatively accurate classification of incipient faults and can be employed as a useful tool for condition monitoring of major power equipment in the smart grid.
About Speaker
Gary W. Chang obtained his Ph.D. from the University of Texas at Austin in 1994. He was with Siemens Power Transmission & Distribution, LLC, Minnesota, USA, from 1995 to 1998, working on EMS/SCADA product developments for electric utilities worldwide. He joined the Department of Electrical Engineering at National Chung Cheng University, Taiwan, in August 1998 and became a Chair Professor in 2020. He served as Chair of the IEEE PES Power Quality Subcommittee (2016–2017) and the IEEE PES Transmission and Distribution Committee (2019–2020). He is member of the IEEE PES Fellow Resource Committee since 2025.
Presently, Prof. Chang serves as a Senior Editor of IEEE Transactions on Power Delivery and as an Associate Editor of IEEE Power Engineering Letters. He has also served as a guest editor for several other IEEE and non-IEEE journals. Additionally, he is the President of the Taiwan Smart Grid Industry Association (2021–2025) and the Executive Director of the Taiwan Power & Energy Engineering Association (2017–present).
Prof. Chang’s research interests include power system harmonics, power quality, renewable energy, and microgrid control. He is an IEEE Fellow (elevated in 2010) and a registered Professional Engineer in the State of Minnesota, USA.
(Personal website: https://powerlab-website.web.app/EN/wenkung_en.html)