Device for operating inverters and power supply system

摘要

A device (2) for operating inverters according to the present invention can operate a plurality of inverters (11-14) for converting DC output from a DC source such as a solar cell (1) to AC output efficiently without relying on a particular inverter. The plurality of inverters are connected to the DC source through switches (31-34). DC output from a DC source is measured by a measuring device (4) to determine the number of inverters to be operated on a basis of the output result from the measuring device. The inverters to be added or cut off are determined among the plurality of inverters at random on a basis of the random number and switches of the determined inverters are turned ON or OFF in order to select inverters to be operated.