sic high voltage switch and silicon igbt hybrid three-phase four-wire high voltage converter
A high-voltage switch, three-phase four-wire technology, applied in the field of power electronic converters or high-voltage applications, can solve the problems of high price of SiC power switching devices, affecting the cost performance of high-voltage converters, etc., to achieve small harmonics, reduce components, The effect of reducing complexity
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[0020] specific implementation plan
[0021] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.
[0022] figure 1 Shown is the main circuit of the present invention, and the composition of the hybrid three-phase four-wire high-voltage converter is as follows:
[0023] 1. The three phases a, b, and c have the same structure. The upper bridge arm of each phase is composed of a high-voltage power switching device connected in series with a bridge arm inductor. That is, the positive pole of the high-voltage power switch is connected to the positive pole of the power supply V, and the negative pole is connected to the bridge arm The inductors are connected; the lower bridge arm of each phase is composed of another bridge arm inductor connected in series with another high-voltage power switching device, that is, the positive pole of the high-voltage power switch is connected to the bridge arm inductor,...
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