Quasi Z-source inverter of active switched capacitor
An active switch and capacitor technology, applied in electrical components, conversion devices for converting AC power input to DC power output, output power, etc. , The effect of improving power density and low duty cycle
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[0016] The present invention will be further described below in conjunction with specific examples.
[0017] see figure 1 As shown, the active switched capacitor quasi-Z source inverter provided in this embodiment includes a voltage source V i , Quasi-Z source unit, active switched capacitor unit, single-phase inverter bridge, output filter inductor, output filter capacitor and load R. The quasi-Z source unit consists of a first inductor L 1 , the second inductance L 2 , the first capacitance C 1 , the first diode D 1 , the second diode D 2 Composition; the active switched capacitor unit is composed of a MOS transistor S and a second capacitor C 2 , the third diode D 3 , the fourth diode D 4 constitute. The voltage source V i The positive pole of the first inductor L 1 One end of the connection; the first inductance L 1 The other end of the first diode D 1 anode of the second diode D 2 the anode connection; the first diode D 1 The cathodes are respectively conne...
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