| 摘要 |
PROBLEM TO BE SOLVED: To enhance the response of a voltage control system by restricting the resonance of an LC filter in a power inverter having the LC filter at AC side. SOLUTION: This equipment comprises an inverter 2 for obtaining an AC voltage from a DC power supply, a filter equipment consisting of a reactor 31 and a capacitor 32 connected to the AC side of the inverter 2, voltage control means 54 to 56 for supplying power to a load 4 through the filter equipment and for controlling capacitor voltage to a reference AC voltage, and a PWM signal generating means generating the PWM signal for driving the inverter 2 based on the voltage control means 54 to 56. And the output from gain adjusters 61 to 63 for applying the gain to the capacitor voltage is applied to the output of the voltage control means 54 to 56. |
