Startup condition detection method suitable for photovoltaic inverter with DC/DC (direct current/direct current)
A photovoltaic inverter and condition detection technology, applied in the direction of instruments, electrical devices, measuring devices, etc., can solve the problem of high hardware costs and achieve full utilization
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[0024] Reference image 3 with Figure 4 , The present invention is suitable for a detection method of starting conditions of a photovoltaic inverter with DC / DC, which is characterized in that it is carried out according to the following steps:
[0025] 1) The DSP control unit samples the PV voltage of the solar panel. When the PV voltage of the solar panel reaches the preset startup threshold voltage Vmin, it is recorded as time t1; after a set period of time from time t1 to time t2, if at In this process, it is detected that the voltage of the solar panel PV is continuously greater than the startup threshold voltage Vmin, then the DSP control unit samples the BUS voltage through the sampling circuit and records the BUS voltage as V1, and the DSP control unit controls the DC / DC circuit to start working;
[0026] 2) The DSP control unit controls the PV voltage of the solar panel near the startup threshold voltage Vmin, and keeps it stable for a set period of time until t3; when the...
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