Sensorless Control of Wound Rotor Synchronous Machines Based on High-frequency Signal Injection into the Stator Windings
- Resource Type
- Academic Journal
- Authors
- Zhiguo Chen; Xianming Deng; Kun Huang; Wenhuan Zhen; Lei Wang
- Source
- JOURNAL OF POWER ELECTRONICS. 2013-07 13(4):669-678
- Subject
- High frequency signal injection
rotor position detection
sensorlss control,wound rotor synchronous machine
- Language
- Korean
- ISSN
- 1598-2092
2093-4718
This paper proposes a sensorless control approach for Wound Rotor Synchronous Machines (WRSMs) based on a high frequency voltage signal injection into the stator side U phase and VW line, respectively. Considering the machine itself as a rotor position sensor, the rotor position observer is established according to the principles of the rotary transformer. A demodulation method for the high frequency signal inducted in the rotor is proposed as well. Simulation and experimental results show that the proposed sensorless control approach has high performance and good practicability.