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Photovoltaic inverter detection function in the whole power plant's role

by:Fangpusun     2020-09-11
Photovoltaic solar power inverter is testing center, the dc component of photovoltaic power station and grid equipment can be detected by the parameters of the power station. How to eliminate photovoltaic inverter problem? Photovoltaic inverter input side of the first turn on the set of string unplug entirely, and then in turn connected, use the function of the pv inverter on testing insulation resistance, detect the problem set of string, in key check dc connector for water soak, and then check for burning-out bracket, by examining the burnt component can check the frame leakage to the ground. Prophase survey grid overloading ( Power consumption big work time) / light load ( Electricity use less time to rest) Work here in advance, the investigation and the health of the node voltage, communication with the inverter manufacturer grid technology for binding energy to ensure the project design in a reasonable range, do not 'assume', especially the rural power grid, photovoltaic inverter to the grid voltage, grid waveform, interconnection distance has strict requirements. Grid overvoltage problems most reason is that the original grid light load voltage more than or close to safety protection value, if a grid line is too long, or bad cause pressure line impedance/impedance is too large, it is impossible to the normal and stable operation of power plant. Solution is to find a power supply bureau coordination or correct selection of grid voltage and strict on quality of power plant construction. Pv inverter as a switching device of the entire plant, station can be not only the current largest efficiently, can detect the security of the whole power plant. Keywords: photovoltaic inverter more articles about inverter show: the reliability of the inverter manufacturer _ photovoltaic inverter
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