Control and Modulation of Three to Asymmetrical Six-Phase Matrix Converters based on Space Vectors

Mohammed A. Al-Hitmi; Khaliqur Rahman; Atif Iqbal; Nasser Al-Emadi

Control and Modulation of Three to Asymmetrical Six-Phase Matrix Converters based on Space Vectors

Vol. 19, No. 2, pp. 475-486, Mar. 2019

10.6113/JPE.2019.19.2.475

Asymmetrical

multiphase

Matrix converter

Modeling of converter

Space vector pulse width modulation

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Abstract

This paper proposes the modulation and control of a three-to-six-phase matrix converter with an asymmetrical six-phase output. The matrix converter (MC) outputs consist of two sets of three-phase spatially shifted by 300, where the two sets have two isolated neutrals. The space vector approach is considered for the modeling and subsequent modulation of the three-to-six phase MC. The intelligent selection of voltage space vectors is made to synthesize the reference voltages and to obtain a sinusoidal output. The dwell times of selected voltage space vectors are adjusted in such a way that the effect of the second and the third auxiliary plane vectors (i.e., x1-y1, and x2-y2) are nullified. To achieve the maximum output voltage gain and to ensure that no reactive power is drawn from the utility supply, the input side power factor is maintained at unity. Nevertheless, the source side power factor is controllable. The modulation technique is implemented in dSPACE working in conjunction with a FPGA. Hardware results that validate the proposed control algorithm are discussed.

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Cite this article

[IEEE Style]

M. A. Al-Hitmi, K. Rahman, A. Iqbal, N. Al-Emadi, "Control and Modulation of Three to Asymmetrical Six-Phase Matrix Converters based on Space Vectors," Journal of Power Electronics, vol. 19, no. 2, pp. 475-486, 2019. DOI: 10.6113/JPE.2019.19.2.475.

[ACM Style]

Mohammed A. Al-Hitmi, Khaliqur Rahman, Atif Iqbal, and Nasser Al-Emadi. 2019. Control and Modulation of Three to Asymmetrical Six-Phase Matrix Converters based on Space Vectors. Journal of Power Electronics, 19, 2, (2019), 475-486. DOI: 10.6113/JPE.2019.19.2.475.