Multi-functional new energy grid-connected inverter
An inverter, new energy technology, applied in the direction of converting AC power input to DC power output, irreversible DC power input converting to AC power output, AC network circuit, etc. It can solve the failure of passive detection method and external detection method. High cost, affecting the power quality of the power grid, etc., to achieve the effects of high-quality power conversion, suppression of high-frequency harmonic resonance, and increased impedance
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[0040] The present invention will be further described below in conjunction with the accompanying drawings.
[0041] Such as figure 1 As shown, a multifunctional new energy grid-connected inverter includes a distributed power supply 1 , a DC voltage converter 8 , a DC / AC inverter 9 , an output filter circuit 10 , and a power grid 11 connected in sequence. The distributed power supply 1 is connected to the control unit 3 through the auxiliary power supply 2, the auxiliary power supply 2 adopts the HV9120 chip, the input end of the auxiliary power supply 2 is connected to the output end of the distributed power supply 1, and the output end of the auxiliary power supply 2 is connected to the control unit Unit 3. Signals are transmitted between the control unit 3 and the DC voltage converter 8 and DC / AC inverter 9 through wires; the control unit 3 includes a current tracking control unit 4 to suppress the DC component unit 5 and suppress high-frequency resonance Unit 6, island d...
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