MPPT CONTROLLER, SOLAR BATTERY CONTROL DEVICE, SOLAR POWER GENERATION SYSTEM, MPPT CONTROL PROGRAM, AND CONTROL METHOD FOR MPPT CONTROLLER

摘要

In order to perform control at an estimated maximum power point even at an unknown operating point, disclosed is an MPPT controller (20) provided with: a measurement data acquisition unit (31) which acquires a solar radiation amount and/or a temperature from a pyrheliometer (14)/a thermometer (15) and acquires a current value and/or a voltage value from an ammeter (17a)/a voltmeter (17b); a search control unit (34) which controls the operating point of an array (10) by controlling an inverter (18) to search for a maximum power point; an estimate equation calculation unit (32) which estimates an estimate equation (A) that holds between the solar radiation amount and the maximum operating current value and/or an estimate equation (B) that holds between the temperature and the maximum operating voltage value; and an MPP estimation unit (35) which estimates the maximum power point at a certain solar radiation amount or a certain temperature using the estimate equation (A) or (B).