METHOD FOR CONTROLLING OUTPUT VOLTAGE OF SOLAR CELL ARRAY

摘要

PURPOSE: A method for controlling an output voltage of a solar cell array is provided to supply a voltage at a maximum power point by using a simple method which requires less calculation. CONSTITUTION: A current voltage and a current are detected(S120). A power differential is calculated. The power differential is calculated from a current power and a previous one. A voltage differential is calculated. The voltage differential is calculated from a current voltage and a previous one. A polarity is calculated(S130). The polarity is obtained by multiplying the voltage differential and power differential. The polarity is zero is confirmed through an output voltage control method(S140). If the polarity is 0, the previous out voltage is maintained(S161).