The present invention provides a solar cell array simulator and a control method thereof, the interface unit 350 for setting the solar radiation amount 200, which is an external condition of the solar cell, and the temperature 210 of the array according to the test conditions; An arithmetic and control unit 260 for calculating a current reference value by using the solar radiation amount 200 inputted through the interface unit 350 and the temperature 210 of the array and dividing the calculated current reference value into a plurality; An amplifier unit 300 for amplifying the control signal output from the operation and control unit 260 and outputting the amplified control signal to the PCS 20 under test; The sensing unit 270, 280 for detecting the current or voltage value from the signal amplified by the amplifier unit 300 and delivers the current or voltage value to the operation and control unit 260; As a power supply device that can be used in a wide range regardless of capacity and the like, it is possible to provide a solar array simulator that is highly efficient and suitable to ensure fast response characteristics that are almost the same as a real solar cell array.;Solar Cell, Photovoltaic, Array, Simulator, Current Control, Pulse Width Modulation
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