Circuit with active power decoupling single-phase no-voltage switch inverter and modulation method thereof
A zero-voltage switch and inverter technology, which is applied in the direction of converting AC power input to DC power output, high-efficiency power electronic conversion, and output power conversion devices, can solve the problem of large switching losses of converter devices, reduced circuit efficiency, and limited Working frequency and other issues, to achieve the effect of small switching loss, high circuit efficiency, and suppress reverse recovery
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[0043] The present invention will be described in detail below in conjunction with the drawings.
[0044] The active power decoupling single-phase zero-voltage switching inverter circuit of the present invention includes a DC power supply, two sets of full-bridge single-phase inverter bridge arms, and a set of active power decoupling bridge arms, inverter and grid filtering Inductance, active power decoupling filter inductance and energy storage capacitor, the three sets of bridge arms are composed of two fully controlled main switches with anti-parallel diodes in series, and the three sets of bridge arms are connected between the DC power supply and the bus bars of the three sets of bridge arms. The auxiliary switch of the anti-parallel diode, the resonant branch composed of the clamping capacitor and the resonant inductor, the main switch and the auxiliary switch are connected in parallel with the capacitors.
[0045] Specific circuit reference figure 1 , With source power decou...
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