| 摘要 |
PROBLEM TO BE SOLVED: To provide an inverter device for surely activating a photovoltatic power inverter by preventing the increase of the breakdown voltage of the using part of an inverter or reducing the loss of a voltage divider resistance as much as possible, and a method for controlling the inverter device. SOLUTION: A solar battery 1 having characteristics that a voltage is high when currents are small, and a voltage is low when the currents are large is used as the input power source of an inverter 3, and provided with resistances R1 and R2 for voltage-dividing the output voltage of the solar battery 1 into desired voltages. A parallel connection circuit in which a switch SW1 for short- circuiting the resistance R1 is connected in parallel with the resistance R1 is connected between one end of the solar battery 1 and the positive polar side terminal of a capacitor 2, and the other end of the solar battery 1 is connected with the negative side of the capacitor 2, and a serial connection circuit in which the resistance R2 is serially connected with the switch SW3 is connected with the capacitor 2 in parallel. In this inverter, a switch SW2 is provided between the common connection point of the switch SW1 with the switch SW3 and the resistance R1. |
