Sensorless Control of Current-Source-Converters Fed Synchronous Motor Drives using High Frequency Signal Injection
- Resource Type
- Conference
- Authors
- Song, Qiuxiao; Wang, Zheng; Liu, Pengcheng; Xu, Yang; Tang, Chenxin; Cheng, Ming
- Source
- 2019 22nd International Conference on Electrical Machines and Systems (ICEMS) Electrical Machines and Systems (ICEMS), 2019 22nd International Conference on. :1-5 Aug, 2019
- Subject
- Power, Energy and Industry Applications
Rotors
Mathematical model
Stators
Sensorless control
Capacitors
Synchronous motors
Modulation
Current-source-converter (CSC)
high frequency (HF) injection (HFI) methods
synchronous reluctance (SyR) motors
sensorless control
- Language
- ISSN
- 2642-5513
In this paper, a sensorless control method is proposed for a current-source-converter (CSC) fed synchronous reluctance (SyR) motor drive system. The proposed method is based on the injection of a high-frequency (HF) pulsating sinusoidal signal in the estimated synchronous reference frame of the drive’s field-oriented control (FOC) scheme. The DC-link inductor, inverter output three-phase filter capacitor of the current-source drive and the nonlinear characteristic of SyR motor lead some challenges to the design of the control method. Under the proposed FOC scheme and with the proper design of the HF signal, the accurate rotor position and speed can be estimated. Experiments results are given to verify the proposed control method.