MULTI-INVERTER PHOTOVOLTAIC POWER GENERATION SYSTEM

摘要

The present invention relates to a multi-inverter photovoltaic power generation system to improve usage efficiency of inverters by varying the inverter capacity on the basis of amount of energy generated from a photovoltaic array, the multi-inverter photovoltaic power generation system comprising: a photovoltaic array, provided with a plurality of photovoltaic strings formed by connecting a plurality of photovoltaic modules, for generating power; a string optima for controlling maximum power point tracking for each of the plurality of photovoltaic strings, and for converting, into an output voltage of uniform size, the generated voltage of generated power output by each of the plurality of photovoltaic strings; and an inverter which is provided with a plurality of conversion units for converting the generated power transformed by the string optima into alternating current and outputting same and for converting the generated power, and a distribution unit for distributing the generated power to the plurality of conversion units, and which varies the number of conversion units in operation from among the plurality of conversion units on the basis of amount of power generated.