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A Compact Three-Phase Single-Input/Dual-Output Matrix Converter

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4 Author(s)
Xiong Liu ; Sch. of EEE, Nanyang Technol. Univ., Singapore, Singapore ; Peng Wang ; Poh Chiang Loh ; Blaabjerg, F.

This paper presents a novel matrix converter with one ac input and two ac outputs. The presented topology is based on the traditional indirect matrix converter, but with its rear-end six-switch inverter replaced by a compact nine-switch inverter. With only three extra switches added, the proposed converter can produce two sets of three-phase ac outputs, whose amplitudes, frequencies, and phases can appropriately be regulated. Features such as sinusoidal input and outputs, unity input power factor and minimum commutation count are all retained by the proposed topology, despite having an additional output. Its modulation is realized by the computationally less intensive carrier-based method, whose unique carrier requirements can easily be managed within a programmable logic device. Mathematical proof for validating sinusoidal input and outputs achieved by this modulation technique is also discussed, before being verified in simulation and experimentally, together with other findings.

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Industrial Electronics, IEEE Transactions on  (Volume:59 ,  Issue: 1 )