電源装置、及び、電源装置の静電容量の補正方法

Japanese Patent JP7047489

B2

To provide a power source device that is able to exert stable control regardless of a change and variation, caused by aging-caused deterioration of an electrostatic capacitance of a capacitor included in a filter provided on an output-side of an inverter, and to provide a correction method for an electrostatic capacitance of the power source.SOLUTION: A power source device comprises: a rail track connected to an output terminal of an inverter; a switch inserted in the rail track in series; an AC filter having a reactor inserted in series between the inverter and the switch and a capacitor connected between the rail track and a neutral point; a current detection unit that detects a current of the reactor; a voltage detection unit that detects a voltage of AC power; a drive control unit; a correction value calculating unit that calculates a correction value for an electrostatic capacitance of the capacitor, based on the current and the voltage detected by the current detection unit and the voltage detection unit while the switch is kept off; and a correction unit that corrects a reference value for the electrostatic capacitance of the capacitor, which is used in inverter drive control by a drive control unit by use of the calculated correction value.SELECTED DRAWING: Figure 1

JP3326790	INDUSTRIAL APPLICABILITY: Control device of power conversion device
WO/2014/098736	AUXILIARY RESONANT COMMUTATED POLE CONVERTER WITH VOLTAGE BALANCING CIRCUIT
JPH0636865	TWO-FREQUENCY POWER SOURCE HIGH FREQUENCY INDUCTION FURNACE

Sato Sho
Fujimoto Hisa
Masashi Hoya

JP2018044558A

April 05, 2022

March 12, 2018

Click for automatic bibliography generation  

Fuji Electric Co., Ltd.

H02M7/48

JP201819576A
JP2001309561A
JP2016540475A
JP201515782A
JP10304677A

Tadashige Ito
Tadahiko Ito

Previous Patent: Exhaust gas treatment equipment and exhaust gas treatment method

Next Patent: Folding device and image forming system