Professor Jian-Xin Shen, Head of the Electrical Engineering Department, Zhejiang University, will discuss the motor design requirements of today’s 'state-of-the-art' compressors in a seminar at CWIEME Shanghai. In particular, he will talk about the type of motor, whether a BLDC, permanent magnet synchronous motor or a different type of PM AC motor drive, is best suited for particular compressor applications, as well as how to design and produce them.