DTC Switching Strategy for Open-end Winding of Induction Machines Fed by a Dual-output Indirect Matrix Converter

This paper deals with the Direct Torque Control (DTC) of Dual Indirect Matrix Converter (DIMC) feeding an open-end winding three-phase Induction Motor (IM). Indeed, the open-end winding topology allows overcoming the main problem of Common-Mode Voltage (CMV) which is responsible of presence of stresses in the motor winding in classical topologies, controlling separately the winding of the three-phases, reducing the voltage stress of the power electronics switches and to decreasing the voltage and current harmonics in each phase. The proposed Dual-output Indirect Matrix Converter generates 18 active voltage space vectors. Whereas, in the proposed algorithm presented in this paper to ensure the control of the proposed topology it is implemented only with two null vectors and six active voltage vectors for each output. It is based on same idea of the space vector pulse width modulation that is applied separately for both converters to ensure the control of their output voltages. Indeed, to ensure the required voltage at each winding the output voltage of the first matrix converter are generated normally and output voltage of the second matrix converter are generated with 180° phase shift. The obtained simulation results prove clearly the overall performance of the control of the studied drive system based on the proposed topology and its control algorithm which may be extended to other drive system application, especially in industrial application where more improved performances are required.

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Direct Torque Control for Three-Phase Open-End Winding Permanent Magnet Synchronous Motor Based on Zero-Sequence Current Suppression

2019 22nd International Conference on Electrical Machines and Systems (ICEMS) ◽

10.1109/icems.2019.8921547 ◽

2019 ◽

Author(s):

Xiaogang Lin ◽

Wenxin Huang ◽

Wen Jiang

Keyword(s):

Permanent Magnet ◽

Permanent Magnet Synchronous Motor ◽

Direct Torque Control ◽

Synchronous Motor ◽

Torque Control ◽

Three Phase ◽

Zero Sequence ◽

Open End Winding

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A Novel Direct Torque Control of Matrix Converter-Fed PMSM Drives Using Dynamic Sector Boundary for Common-Mode Voltage Minimization

IEEE Transactions on Industrial Electronics ◽

10.1109/tie.2019.2962408 ◽

2021 ◽

Vol 68 (1) ◽

pp. 70-80 ◽

Cited By ~ 1

Author(s):

Weitao Deng ◽

Husheng Li ◽

Jun Rong

Keyword(s):

Direct Torque Control ◽

Matrix Converter ◽

Torque Control ◽

Sector Boundary ◽

Common Mode ◽

Common Mode Voltage

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Direct Torque Control of Five-Phase Induction Motor With Common-Mode Voltage and Current Harmonics Reduction

IEEE Transactions on Power Electronics ◽

10.1109/tpel.2016.2644988 ◽

2017 ◽

Vol 32 (11) ◽

pp. 8644-8654 ◽

Cited By ~ 20

Author(s):

Yogesh N. Tatte ◽

Mohan V. Aware

Keyword(s):

Induction Motor ◽

Direct Torque Control ◽

Torque Control ◽

Common Mode ◽

Current Harmonics ◽

Common Mode Voltage

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Optimization of torque ripples in direct torque control drives

Proceedings of the Russian higher school Academy of sciences ◽

10.17212/1727-2769-2021-1-41-53 ◽

2021 ◽

pp. 41-53

Author(s):

Andrey Kromm ◽

◽

Gennady Simakov ◽

Valery Topovsky ◽

◽

...

Keyword(s):

Hybrid Method ◽

Output Voltage ◽

Pulse Width Modulation ◽

Control Method ◽

Hybrid Control ◽

Direct Torque Control ◽

Torque Control ◽

Drive Control ◽

Electrical Motors ◽

Torque Ripples

The article discusses the features of the synthesis of a hybrid method for commutation of a three-phase inverter in a classic version of drives with direct torque control (DTC), which involves the use of relay characteristics in the flux- and torque control blocks. It is proved that the output voltage of a converter based on a B6-inverter formed by only six basic vectors (excluding the zero vector) limits further optimization of flux- and torque ripples in the electrical motors. It has also been proven that with the classical drives with direct torque control, the torque ripples on the motor shaft are indeed higher than in systems with pulse width modulation. An analysis of the method was carried out which could allow reducing the amplitude of the torque ripples when drives with direct torque control are applied for motors supplied with only basic vectors of the inverter due to the modified (hybrid) method of inverter commutation. The conditions under which the hybrid control method of the inverter is really capable of reducing the amplitude of the motor flux- and torque ripples are considered. Based on the analysis of the proposed solution, the law of hybrid control of the inverter is presented by means of the formation of additional vectors of its output voltage via basic vectors of the inverter. The advantages of the method include the simplicity of drive control under development or in the existing drive control system, the implementation of which is carried out exclusively by a software product. With the absence of iterative methods of mathematics, the resources of microprocessor control units are reduced, which makes this method even more attractive in low-budget electrical drives that do not claim to be "high-end" of control blocks. The oscillograms are shown of a flux and current of motor with direct torque control motor application only with six base vectors of the output voltage of a semiconductor inverter and a drive with direct torque control by the hybrid method with additional voltage vectors based on the basic vectors of the inverter.

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SVPWM Method for Multilevel Indirect Matrix Converter with Eliminate Common Mode Voltage

Applied Sciences ◽

10.3390/app9071342 ◽

2019 ◽

Vol 9 (7) ◽

pp. 1342

Author(s):

Nguyen Dinh Tuyen ◽

Le Minh Phuong

Keyword(s):

Pulse Width Modulation ◽

Experimental System ◽

Power Converter ◽

Matrix Converter ◽

Modulation Method ◽

Common Mode ◽

Common Mode Voltage ◽

Three Phase ◽

Sinusoidal Input ◽

Bidirectional Power Flow

The multilevel indirect matrix converter (IMC) is a merit of power converter for feeding a three-phase load from three-phase power supply because it has several attractive features such as: Sinusoidal input/output currents, bidirectional power flow, long lifetime due to the absence of bulky electrolytic capacitors. As compared to the conventional IMC, the multilevel IMC provides high output performance by increasing the level of output voltage. In this paper, the novel approach topology of multilevel IMC by using the combination of the cascaded rectifier and the three-level T-Type inverter is introduced. Furthermore, the new space vector pulse width modulation (SVPWM) method for the presented multilevel IMC that eliminate the common-mode voltage is proposed in this paper. The simulation study is carried out in PSIM software to verify the proposed modulation method. Then, an experimental system is built using a three-phase RL load, a multilevel IMC, a DSP controller board and other elements to verify the effectiveness of the proposed modulation method. Some simulation and experimental results are illustrated to confirm the theory analysis.

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