Invited Speakers
Prof. Jianning Yin
Xi’an University of Technology, China
Biography: Jianning Yin (Member, IEEE), Associate Professor with the School of Electrical Engineering, Xi’an University of Technology. His research interests include optimization design and intelligence of high and low voltage circuit breakers, advanced interruption technology for DC circuit breakers. Selected as a "double innovation" talent in Jiangsu Province, won the second prize of Shaanxi Science and Technology Progress Award, a young scientific and technological star of Xi'an University of Technology. Published more than 30 papers, authorized 6 patents, and completed 7 patent transformations. Presided over 6 vertical projects such as the National Natural Science Foundation of China and the key research and development plan of Shaanxi Province, and more than 20 projects in cooperation with enterprises.
Title of Speech: Advanced Interrupting Technology of Circuit Breakers and Applications
Abstract: Under the development trend of global clean energy and environmental protection, the installed capacity of new energy power generation such as photovoltaic power generation has maintained a rapid growth. Energy storage systems has also been vigorously developed. At the same time, higher requirements have been put forward for DC circuit breakers that play a protective and control role in the new energy power generation system. In the photovoltaic power generation system and storage systems, the circuit breaker is required to be able to break the DC short circuit current of higher voltage (DC 2000V) and larger current. Based on, the research group has carried out simulation and experimental research on DC arc characteristics. Based on the simulation, the high-efficiency arc breaking technology is put forward. Through the matching design of structural parameters of arc extinguishing chamber, the arc dynamic characteristics can be coordinated regulation. Furthermore, for the direct current interruption at higher voltages, a magnetic-integrated hybrid direct current circuit breaker topology was proposed. By combining mechanical switches with power electronic devices, it successfully achieved direct current interruption at higher voltages and larger currents. This helps to promote the healthy development of the new energy system.