Linear parameter varying approach to robust control of a permanent magnet synchronous motor

2011 ◽  
Author(s):  
L. Pohl ◽  
P. Blaha
Keyword(s):  
Robust Control ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Linear Parameter ◽  
Linear Parameter Varying ◽  
Parameter Varying

Output-Feedback Linear Parameter Varying Control of Permanent Magnet Synchronous Motors

2020 ◽  
Author(s):  
Jaecheol Lee ◽  
Shahin Tasoujian ◽  
Karolos Grigoriadis ◽  
Matthew Franchek
Keyword(s):  
Permanent Magnet ◽  
Output Feedback ◽  
Permanent Magnet Synchronous Motor ◽  
Linear Matrix ◽  
Linear Parameter ◽  
Linear Parameter Varying ◽  
Synthesis Conditions ◽  
Speed Regulation ◽  
Parameter Varying ◽  
Gain Scheduled

Abstract This paper investigates the design of an output feedback linear parameter-varying (LPV) gain-scheduled controller for the speed regulation of a surface permanent magnet synchronous motor (SPMSM). Motor dynamics is defined in the stationary reference (α – β) frame and a parameter-varying model formulation is provided to describe the SPMSM nonlinear dynamics. In this context, a robust gain-scheduled LPV output-feedback dynamic controller is designed to satisfy the asymptotic stability of the closed-loop system and meet desired performance requirements, and guarantee robustness against norm-bounded uncertainties and disturbances. The real-time impact of temperature variation on the winding resistance and magnet flux during motor operations are considered in the LPV modelling and the subsequent control design to address demagnetization effects in the motor response. The controller synthesis conditions are formulated in a convex linear matrix inequality (LMI) constraint framework. Finally, the validity of the proposed control strategy is assessed in simulation studies, and the results are compared to the results of the conventional field-oriented control (FOC) method. The results of the simulation demonstrate that the proposed controller provides improved transient response with respect to settling time, overshoot, and disturbance rejection in tracking the velocity profile under the influence of parameter and temperature variations and disturbances.

Robust Control with Input-Output Decoupling Technique for an Interior Permanent Magnet Synchronous Motor in Electrical Vehicle System

2011 ◽  
Vol 317-319 ◽  
pp. 2461-2465
Author(s):  
Li Lin ◽  
Hong Wei Tang ◽  
Jie Tang
Keyword(s):  
Robust Control ◽  
Permanent Magnet ◽  
Control Method ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Drive System ◽  
Variable Load ◽  
Input Output ◽  
Interior Permanent Magnet ◽  
Electrical Vehicle

A new interior permanent magnet synchronous motor (IPMSM) control method is presented for electrical vehicle drive system. Based on the differential geometry theory, the nonlinear system is changed into a linear system with input-output decoupling technique. Then, by the maximum torque per ampere (MTPA) control strategy, the output torque of the drive system is added. And then, a load torque observer is designed to resist the variable load. In the end, Based on the linearization model, an controller is given. Simulation results show that the electrical vehicle drive system based on decoupling robust control has fast transient responses, good load disturbance resistance responses and good tracking responses.

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