Double-input single-phase six-switch group mmc rectifier and its control method
A technology of six-switch group and switch group, which is applied in the field of dual-input single-phase six-switch group MMC rectifier and its control, can solve problems such as increasing engineering cost, and achieve the effect of solving the problem of voltage equalization, reducing engineering cost and improving quality
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[0020] In order to further illustrate the content and features of the present invention, the specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. But the implementation of the present invention is not limited thereto.
[0021] refer to figure 1 , the dual-input single-phase six-switch group MMC rectifier of the present invention includes a first AC input power supply u a , the second AC input power u b , the first inductance L a , the second inductance L b , the first bridge arm, the second bridge arm and the load R; the first bridge arm and the second bridge arm are all controlled by the upper switch group (H 1 、H 2 ), medium switch group (M 1 , M 2 ), the lower switch group (L 1 , L 2 ), the third inductance (L H1 , L H2 ), the fourth inductance (L L1 , L L2 ) in series; the upper switch group H of the first bridge arm 1 consists of N power switching units (SM H11 , SM H12 ,...,SM H1N ...
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