Single-phase grid-connected and off-grid inverter system and control method thereof
An inverter and single-phase technology, which is applied in the single-phase off-grid inverter system and its control field, can solve the problems of poor system dynamic performance and poor load voltage quality, and achieve fast conduction speed and arc pulling Low interference, no noise effect
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[0043] The single-phase off-grid inverter system of this embodiment includes a single-phase off-grid inverter 2, a switch circuit 3, a switch circuit control module 4 and a signal acquisition module 5, and the signal acquisition module includes an external DC voltage acquisition circuit 51. Inverter output voltage acquisition circuit 52, external grid current acquisition circuit 53 and external grid output voltage acquisition circuit 54; the input end of the single-phase off-grid inverter 2 is connected to the output end of the external DC voltage supply device 1 , the output end of the single-phase off-grid inverter 2 is connected to the input end of the switch circuit 3, the output end of the switch circuit control module 4 is connected to the switch circuit 3, and the output end of the switch circuit 3 is bidirectionally connected to the external grid; The external DC voltage acquisition circuit 51 is connected to the external DC voltage supply device 1, the inverter output ...
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