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A novel Z-source dual-bridge matrix converter (ZSDBMC) topology and its control strategy are proposed to overcome two main drawbacks of conventional matrix converters: low immunity to abnormal input voltage disturbance and low voltage transfer ratio. The boost voltage characteristic of Z-source network is utilized to improve the system voltage transfer ratio and make it immune to abnormal input voltage...
The development of micro-grid and energy storage devices are inseparable, without energy storage devices, micro-grid will not be able to run stablely, the paper reviews the principle of SMES devices and the main circuit topology, ultimately the cascaded H-bridge topology is adopted. Simulation and analysis is carried out, and the results show that the device active and reactive power can be well compensated...
As the conventional matrix converter has the drawback of low voltage ratio (max. 0.866), a novel matrix converter called z-source matrix converter is proposed, According to the topology of the different main circuits, they are called z-source indirect matrix converter (ZSIMC) and z-source direct matrix converter (ZSDMC). The basic configuration of the new topology and their fundamental principle are...
This paper introduced a simple but effective three-level SVPWM algorithm. On the basis of this algorithm, a simple neutral-point balancing and narrow-pulse elimination algorithm without current sensor is proposed, and dead time is compensated in the algorithm also. The result of test verified that this algorithm is simple to be carried out, harmonics in output waveform are small, neutral-point potential...
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