Energy repayment type three -phase grid -connected inverter

The utility model provides an energy repayment type three -phase grid -connected inverter, include: full -bridge boost circuit, inverter circuit, interchange filter circuit to and the DSP board, the low pressure direct -current input, is strained three -phase alternating current's noise and is disturbed the back and export through exchanging filter circuit at last again through inverter circuit contravariant one -tenth three -phase alternating current through the high pressure that full -bridge boost circuit rose 700VDC, DSP board process monitoring signal and producing signals group control full -bridge boost circuit and inverter circuit. Become three -phase AC to electric wire netting with the contravariant of DC direct -current input, DC power supply not only dispels the heat fewly whenageing, can save the electric energy more than 80% moreover, less carbon discharges, the control of being convenient for simultaneously, the incident that reduces or stop to age, the utility model discloses a contravariant o