2023 2nd International Conference on Smart Grid and Green Energy (ICSGGE 2023)
Keynote Speakers of 2023

Keynote Speakers of 2023
Associate Professor, Haoxi Cong
North China Electric Power University

Brief introduction: Haoxi Cong is an associate professor and a doctoral supervisor. He is mainly engaged in teaching circuit and electrician courses, as well as research work on advanced power transmission and transformation technology and electrical equipment intelligence. He has hosted three National Natural Science Foundation of China (NSFC) projects, participated in four NSFC projects, one sub-project of National High Technology Research and Development Program (863 Program) and many research projects of State Grid Corporation, published one academic monograph and more than 50 research papers in important academic journals and conferences at home and abroad. He has been selected as a member of IEEE Senior Member of China Electrical Engineering Society (CEEES), IEEE P2869 Working Group, CIGRE A1.73, CIGRE China National Committee Youth Committee, China Electrotechnical Society Youth Committee, IEEE PES Transmission and Distribution Technical Committee (China) Overhead Lines Technical Sub-Committee, and IEEE PES Insulation Materials. He is also a member of the Youth Engineering Committee of the Chinese Electrotechnical Society, a member of the IEEE PES Technical Committee on Transmission and Distribution (China), and a member of the Young Editorial Board of the Journal of Insulating Materials. He has long been a member of IEEE Transactions on Industrial Electronics, IEEE Transactions on Power Delivery, Journal of Electrical Engineering & Technology, Chinese Journal of Electrical Engineering, Chinese Journal of Electrical Engineering, Chinese Journal of Electrical Engineering, and Chinese Journal of Electrical Engineering. Journal of Electrical Engineering & Technology", "Journal of Electrical Engineering", "Journal of Electrical Technology", "High Voltage Technology", "Power Grid Technology" and other domestic and international journals as reviewers.

Speech Title: Vegetable oil transformer transition metal degradation mechanism and protection technology
Abstract: Vegetable oil   transformer has the advantages of strong overload capacity, green environment   protection, low loss, small local discharge, etc. It is an ideal green   transformer with wide application prospect in the future. Vegetable oil   transformers will gradually deteriorate under the action of electrical and   thermal stress during operation, and are also affected by many environmental   factors, and the degree of deterioration of their oil-paper insulation is   closely related to their operating life. Research shows that the transformer   core and winding of iron, copper and other transition metals have redox   activity, long-term operation process will accelerate the deterioration of   vegetable oil paper, a serious threat to the safe and stable operation of   vegetable oil transformers. The core and copper windings are immersed in   vegetable insulating oil for a long time, and high temperature and local   overheating may occur in transformer operation, coupled with the influence of   external factors such as electric field, oxygen, moisture, acid, etc.   Therefore, the deterioration reaction mechanism of iron, copper and other   transition metals on vegetable oil paper under the above circumstances will   be more complex. In order to break through the above bottlenecks, the organic   combination of macroscopic experimental research and microscopic molecular   simulation is used to reveal the process and mechanism of the degradation   reaction of coke transition metals on vegetable oil paper, and on this basis,   a quantitative characterization method for the severity of the degradation   reaction of transition metals on vegetable oil paper is established, and an   effective protection method for vegetable oil paper insulation in the presence   of transition metals is proposed. It has important scientific exploration   significance and broad engineering application prospect for ensuring the safe   and stable operation of future vegetable oil transformers, building strong   and green power grid, and strengthening environmental protection and   sustainable development.

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