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Direct Torque Control for Matrix Converter Fed Induction Motor Using SVPWM

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Document pages: 11 pages

Abstract: This paper proposes develope a direct torque controlled matrix converter fed induction motor drive system based on space vector modulation technique (SVPWM) for ripple reduction. DTC-MC combination is efficient way to get better performance specifications in the industry. To obtain high performance torque control the Direct Torque Control technique is used in AC drive systems. The DTC principle is based on simultaneously decoupling the stator flux and electromagnetic torque. To achieve good sensorless speed-control performance, to obtain unity input power factor and in the low speed operation, while maintaining constant switching frequency and fast torque dynamics. It is possible to combine the DTC-MC strategy using SVM. The advantages of DTC-MC is a simple in structure and has good dynamic behaviour , fast torque response ,giving high performance and efficiency. The DTC-SVM methodology is the calculation of the required voltage space vector to compensate the flux and torque errors. The performance of this method is demonstrated by simulation using Matlab Simulink software. This results the good quality and robustness in the system dynamic response and reduction in the steady-state and transient motor ripple torque.

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