Power supply method for grid-connected and off-grid dual-purpose wind and light complement power generation system
A wind-solar hybrid and power generation system technology, applied in photovoltaic power generation, battery circuit devices, collectors, etc., can solve problems such as reducing battery life and system inoperability, and achieve the effects of avoiding waste, ensuring power supply reliability, and increasing service life
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[0032] The present invention will be further explained below in conjunction with the drawings.
[0033] Such as figure 1 Shown is a dual-purpose wind and solar hybrid power generation system that includes photovoltaic modules, wind turbines, wind and solar hybrid controllers, inverters, batteries, loads and unloading boxes; the wind and solar hybrid controllers convert the electric energy obtained by photovoltaic modules and wind turbines Connect the DC power to the DC bus, and use the MPPT method to maintain the output of the photovoltaic module at the maximum power point; the DC output of the wind and solar hybrid controller is connected to the 48V DC bus in parallel with the lead-acid battery; the inverter is connected to the DC bus, The obtained direct current is converted into alternating current.
[0034] When working, the inverter detects the main network voltage and main network frequency in real time. When the main network voltage and main network frequency are normal, th...
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