Longya Xu
Biography
Longya Xu’s high-efficiency and high-reliability electric machine design and control techniques are driving advances in electric vehicles and in harnessing wind power. His development and enhancement of the first doubly fed brushless machine led to a sensorless and brushless wind-power generation system with high reliability compared to conventional motor and generator systems. He designed a brushless wind turbine generator that allows flexible AC or DC connection to power grids. Xu also developed the dual-mechanical-port (DMP) machine concept, which allows multiple mechanical subsystems to effectively interact with electrical subsystems for optimal performance and flexible power-flow control within a single electric machine frame. A major contribution to meeting the needs of high-efficiency electric vehicles, his DMP system was successfully installed on a 2.8-ton SUV capable of driving 125 km/hour at grades up to 30%.
An IEEE Fellow, Xu is a professor at The Ohio State University, Columbus, OH, USA.
