Photovoltaic grid connection power generation system based on DC converter and working method thereof
A DC converter and grid-connected power generation technology, which is applied in photovoltaic power generation, light radiation generators, control/regulation systems, etc., can solve problems such as limiting the promotion of photovoltaic grid-connected systems and rising photovoltaic system costs, and achieve excellent tracking accuracy and Stability, reducing the impact of single branch faults, and stabilizing the DC bus voltage
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[0030] Example: A photovoltaic grid-connected power generation system based on a new type of DC converter (see attached figure 1 ), which is characterized in that it is composed of a DC converter, a grid-connected inverter, an isolation transformer and a control circuit; the input end of the DC converter is connected to the two ends of the solar cell array, and the output end is connected to the grid-connected The input end of the inverter; the output end of the grid-connected inverter is connected to the input end of the isolation transformer, and the output end of the isolation transformer is connected to the grid; the control circuit that uses the digital signal processor as the control core The input end is connected to the signal output end of the DC converter and the inverter, and the output end is connected to the signal input end of the DC converter and the grid-connected inverter.
[0031] The above-mentioned DC converter (see attached figure 1 , 2 , 3) External hardwar...
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