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This paper proposes a three-phase input indirect matrix converter topology for a dual ac-drive system with modified switch control schemes, along with addition of a leg. This topology is developed based on a very sparse matrix converter with addition of a leg in the inverter stage, which can reduce the amount of power transistors compared to the conventional dual matrix converter system and; therefore,...
A novel predictive current control for a sparse matrix converter is presented. The sparse matrix converter is functionally-equivalent to the standard matrix converter but has a reduced number of switches. The predictive current control uses a model of the system to predict the future value of load current and generates the reference voltage vector that minimizes a given cost function so that SVM(Space...
In this paper, we present a novel Z-source sparse matrix converter (ZSMC) and a compensation method based on a fuzzy logic controller to compensate unbalanced input voltages. The ZSMC is developed based on the structure of an SMC to reduce the number of unipolar power semiconductor switches and employs a Z-source network to overcome the inherent limitation of the low voltage transfer ratio of conventional...
A novel Z-source sparse matrix converter (ZSMC) is developed based on the structure of a sparse matrix converter (SMC) to reduce the number of unipolar power semiconductor switches. It also employs a Z-source network to overcome the inherent limitation of the low voltage transfer ratio of the conventional matrix converter. The ZSMC still, however, connects a three-phase voltage source to a three-phase...
This paper proposes a novel Z-source sparse matrix converter and its modulation strategy. The proposed matrix converter is developed based on the structure of a sparse matrix converter to reduce the number of unipolar turn-off power semiconductors and employs a Z-source network to overcome the inherent drawback of the low voltage transfer ratio of the conventional matrix converter. The proposed modulation...
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