Jun Kang, Ph.D, Yaskawa Electric America

Articles

IIoT, Industrie 4.0 April 1, 2010

Sensorless Control of Permanent Magnet Motors

Precise speed control of AC motors is typically accomplished with a variable frequency drive (VFD) connected to a speed or position feedback sensor. In certain situations, however, it's possible to achieve a similar level of precision speed control without the need for a feedback sensor via the high frequency signal injection method.

By Jun Kang, Ph.D, Yaskawa Electric America