Single-pulse operation for a Matrix converter synchronized with the output frequency

This paper proposes a single-pulse operation control for Matrix converters where the single-pulse operation is controlled to synchronize with the output frequency. There are two known problems for the synchronize control; firstly, the beat-frequency components occurs in the output current, and secon...

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Bibliographic Details
Main Authors: Itoh, Junichi, Maki, Koji
Format: Conference Proceeding
Language:English
Subjects:
AC motors
AC-AC power conversion
Beatless control
Frequency conversion
Frequency synchronization
High frequency AC motor drives
Matrix converters
Pulse width modulation
Pulse width modulation converters
Pulse width modulation inverters
Reactive power
Space vector pulse width modulation
Synchronous PWM control
Voltage control
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Summary:This paper proposes a single-pulse operation control for Matrix converters where the single-pulse operation is controlled to synchronize with the output frequency. There are two known problems for the synchronize control; firstly, the beat-frequency components occurs in the output current, and secondly, the input power factor should be controlled as unity. To solve these problems, this paper proposes a beat-less control with unity power factor control. Additionally, the voltage transfer ratio is improved to 0.955 in the high-frequency output. Furthermore, a transfer control, which control from the asynchronous PWM to the proposed single-pulse control, is proposed. The fundamental operations are confirmed by the experimental results. The beat current is suppressed from 4% to approximately 1% by using the proposed control. The experimental results demonstrate sinusoidal input current waveforms and a unity input power factor. Additionally, a maximum efficiency of 96.4 % is achieved at 1.34-kW load.
DOI:10.1109/IPEC.2010.5543832