Comparative Analysis of Constant Torque Angle Control and Constant Mutual Flux Linkage Control of Permanent Magnet Synchronous Motor

Abstract

This paper presents a comparative analysis of constant torque angle control (CTAC) and constant mutual flux linkage control (CMFLC) of permanent magnet synchronous motor. Usually, high-performance motor drives are categorized by their fast and precise response, quick regaining from disturbances, and insensitivity to parameter variations. In the literature several possible solutions for the controlling of PMSM are proposed. Hence, a comprehensive comparison between these two control techniques will be helpful for the user to choose the better strategy depending on the application. In CTAC, the current which is responsible for torque producing (quadrature axis current) is taken as zero, so that torque angle becomes constant and its value becomes 90°, however in case of CMFLC of PMSM reference mutual flux is taken constant and its value is equal to the constant flux producing by the surface mount permanent magnet. The Simulink model is developed in MATLAB for both the control technique and different performance parameters are compared.