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This paper presents a PWM strategy for minimizing the output voltage harmonics of matrix converters. The authors previously proposed a PWM strategy in this strategy, the number of commutations in all three phases during the control period can be reduced to four. In this paper, by using the detected output current values for calculating the duty cycles, the continuously varying duty cycles for a control...
This paper presents the expansion of controllable range in input power factor for matrix converters reducing a number of commutations. The controllable range of the input factor in the proposed scheme can be expanded to arbitrary angle. It can be realized by using eight switching patterns of the conventional four patterns and the new four patterns. The effectiveness of the proposed control algorithm...
This paper presents a starting method of Permanent Magnet Synchronous Motors (PMSM) for constant speed application driven by the commercial three-phase power supply. The starting system has an LC niter and Simplified Matrix Converter (SMC) consisting of four bidirectional switches. The effectiveness of the proposed control method has been verified by experiments.
This paper presents a control scheme of matrix converters for suppressing the resonance of the input filter. The principle of the resonance suppression is that the matrix converter absorbs the harmonic power of the resonant components. The effectiveness of the proposed suppression control scheme has been verified by experiments.
This paper presents a control scheme of matrix converters for reducing the number of commutations. The proposed control scheme is based on the direct AC/AC conversion approach and the carrier-based PWM control to obtain the constant switching frequency. The feature of the proposed control scheme is the reduction of both the number of the commutations and the output voltage harmonics. The effectiveness...
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