Torque Ripple Minimization of Matrix Converter-Fed PMSM Drives Using Advanced Direct Torque Control

Abstract

An advanced direct torque control (DTC) technique using Model predictive control (MPC) is proposed for matrix converter (MC)-based permanent-magnet synchronous motor (PMSM) drive system, which reduces the torque ripples, does not need the duty cycle calculation, and ensures the fixed switching frequency. Analytical expressions of change rates of torque and flux of PMSM as a function of MC -dqo components are derived. The predictive model of PMSM and MC is realized by means of State model. Then, the advanced MC-fed DTC algorithm is implemented based on Cost function evaluation. The simulation results exhibit remarkable torque ripple reduction with the help of MPC. As a result, the proposed strategy is proved to be effective in minimizing the torque ripples for MC-based PMSM drives. Keywords Direct torque control (DTC), matrix converter (MC), permanent-magnet synchronous motor (PMSM), Model predictive control (MPC), and Cost function

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“…mOver the last decades, many kind of DTC algorithms have been proposed by researchers to overcome mentioned handicaps and most of them have focused on motor ripples side. In [4], researchers proposed matrix converter based model predictive control approach and they proved that it can be effective in minimizing torque ripples. In [5], authors presents a modified DTC algorithm for permanent magnet synchronous motor drives with fast torque dynamics and constant switching frequency.…”

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“…Over the last decades, different types of the DTC algorithms have been proposed by researchers and academics to overcome mentioned handicaps and most of them have focused on torque ripples side in their studies. In [4], researchers proposed matrix converter based model predictive control approach and they proved that it can be effective in minimizing torque ripples. In [5], authors present a modified DTC algorithm for permanent magnet synchronous motor drives with fast torque dynamics and constant switching frequency.…”