Sun Jianjun (1975.7—), male, doctor, associate professor, School of Electrical Engineering, Wuhan University. Main research interests: application and research of high-power power electronic technology, power quality analysis and processing. Scientific research: at present, I undertake research topics such as power quality monitoring and control, high-power inverter power supply, frequency converter and its control technology. It has obtained an invention patent and a utility model patent (ranked 4th), and won the second prize of scientific and technological invention in Hubei Province 1 (ranked 4th). More than 5 papers 1 were published in core journals and international conferences, among which 6 papers1were included in the three major searches.