Sliding Mode Fault Tolerant Controller for PMSM with Speed Sensor Faults
Publish place: The 31st annual conference between Iran Mechanical Engineering and the 9th Iran Power Plant Industry Conference
Publish Year: 1402
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISME31_207
تاریخ نمایه سازی: 10 خرداد 1402
Abstract:
A Fault Tolerant Controller (FTC) of a Permanent Magnet Synchronous Motor (PMSM) drive has been designed in this paper, through combining the sliding mode controller and observer. To achieve this goal, a Sliding Mode Controller (SMC), based on the vector control of PMSM is utilized. The controller significantly relies on speed sensor measurements for achieving good performance in the closed-loop control. The proposed fault detection algorithm calculates the speed residual. In addition, a Sliding Mode Observer (SMO) has been used to estimate the motor speed via voltage and current of the motor. Thus, the observer generates a virtual speed sensor through motor speed estimation. Whenever the sensor faces a fault, FTC detects the fault and immediately replaces the sensor measurements with observer estimations for sensorless control of the motor. The stability of the overall closed-loop system has been investigated using Lyapunov stability theory. Simulation results verify effectiveness of the proposed FTC.
Keywords:
Permanent magnet synchronous motor , sliding mode controller , fault tolerant controller , sensorless control , vector control
Authors
A Keshavarz-Mohammadiyan
Smart Control Systems Research Department, Niroo Research Institute (NRI), Tehran;
M Ayati
School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran;
H Nikbakht
College of Electrical Engineering, Payam-e-Golpayegan Higher Education Institute, Golpayegan;