| 摘要 |
The inverter comprises a diode bridge (21) that rectifies an inputted three-phase AC voltage into a DC voltage, an inverter section (22) that converts the DC voltage converted by the diode bridge (21) into an AC voltage and outputs the resulting voltage, an LC filter that has an inductor L dc connected between one output terminal of the diode bridge (21) and one input terminal of the inverter section and a capacitor C dc connected across the input terminals of the inverter section, a voltage detecting section (24) that detects cross terminal voltage of the inductor L dc , and a control section (100) that controls the inverter section (22). The control section (100) controls the inverter section (22) so that the transfer characteristic of the I/O voltage of the inverter section (22) becomes a characteristic of the first-order lag system on the basis of the cross terminal voltage of the inductor L dc detected by the voltage detecting section (24). |
