Direct Torque Control Strategy of PMSM Employing Ultra Sparse Matrix Converter

Abstract

Matrix converter is a good choice for Permanent Magnet Synchronous Motor (PMSM) drives, because it has high power density and does not require dc-link energy storage. the disadvantages of conventional matrix converter is using 18 active switches, so it becomes expensive and the modulation method becomes more complicated than back to back converter. To minimize this problem, this paper proposes variable speed drive of PMSM using Ultra Sparse Matrix Converter (USMC) based on Direct Torque Control (DTC) methods. This converter uses only 9 active switches, making it cheaper than conventional matrix converter. DTC is designed based on Space Vector Modulation (SVM) to reduce torque and flux ripples due to the hysteresis control in conventional DTC. The simulation results show that DTC based SVM using USMC effectively controls the rotor speed with low torque and flux ripples.

Modeling flux linkages of an induction motor in dynamic modes. Comparison of the effectiveness of various control algorithms

“…Постановка задачи. Исследованию частотнорегулируемых приводов с использованием пакета Matlab / Simulink посвящено большое количество работ отечественных и зарубежных ученых [3][4][5][6][7][8].…”

“…В этих работах исследуются динамические характеристики электроприводов [3][4][5]. Много работ посвящено повышению энергоэффективности преобразователей частоты [9,10], при этом используемые в этих исследованиях модели асинхронных электродвигателей не отличаются от моделей двигателей, заложенных в системы векторного управления.…”

Permanent Synchron Magnet Motor Speed Observer Based on Least Squares Support Vector Machine Regression

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Design and fault tolerant analysis of five-phase permanent magnet synchronous motor

“…PMSMs certainly have more advantages in terms of power density, higher efficiency and reliability, compact size, and better dynamic performance [1][2][3][4][5]. PMSM is also very popular since its design and constructions can be custom-made in numerous applications according to the performance required.…”