Distributed power generation system architecture and control method thereof
A technology of distributed power generation and system architecture, which is applied in the direction of control/regulation system, electrical components, and regulation of electrical variables, etc. It can solve the problems of system reliability and safety reduction, restricting the performance of DC module architecture, and difficult system expansion and control. , to achieve the effects of strong expansion and redundancy capabilities, improved system reliability, and low cost
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[0043] see figure 1 , this embodiment provides a distributed power generation system architecture 10, including a plurality of DC modules 100, a low-voltage DC bus 200, and a step-up high-gain inverter 300, each DC module 100 includes a distributed power supply 110 and The bidirectional DC converter 130, the output terminal of the distributed power supply 110 is connected to the input terminal of the bidirectional DC converter 130, the output terminal of the bidirectional DC converter 130 is connected to the low-voltage DC bus 200, and the step-up high-gain inverter 300 The input end is connected to the low-voltage DC bus 200 , and the output end of the step-up high-gain inverter 300 is used to connect to the grid 20 .
[0044] In this embodiment, the number of DC modules 100 is 3, and of course it is not limited thereto. Here, the number of DC modules 100 can also be 4 or 5, etc., and the specific number is determined by the total system The rated power is determined and is ...
no. 2 example
[0073] This embodiment provides a control method for a distributed power generation system architecture 10, which is applicable to the distributed power generation system architecture 10 provided in the first embodiment, wherein the basic structure and principle of the distributed power generation system architecture 10 and the resulting technical effects Same as the first embodiment, for the sake of brief description, for parts not mentioned in this embodiment, reference may be made to the corresponding content in the first embodiment.
[0074]The distributed power generation system architecture 10 includes a DC module 100, a low-voltage DC bus 200, and a step-up high-gain inverter 300. The DC module 100 includes a distributed power supply 110 and a bidirectional DC converter 130. The output terminal of the distributed power supply 110 It is connected to the input terminal of the bidirectional DC converter 130, the output terminal of the bidirectional DC converter 130 is conne...
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