Charging and Discharging Control Apparatus of DC Link Capacitor And The Method Thereof

The present invention relates to a charging and discharging control apparatus of a DC link capacitor and a control method thereof. The charging and discharging control apparatus (200) of a DC link capacitor includes a charging power supply unit (210) for storing DC power and supplying an input volta...

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Bibliographische Detailangaben
Hauptverfasser:	LEE SU MIN, LEE CHUNG KWON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MOTOR VEHICLES PERFORMING OPERATIONS PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY TESTING TRAILERS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a charging and discharging control apparatus of a DC link capacitor and a control method thereof. The charging and discharging control apparatus (200) of a DC link capacitor includes a charging power supply unit (210) for storing DC power and supplying an input voltage, an inverter unit (250) for converting the DC power into AC power, a DC link capacitor unit (240) for repeating charging and discharging so that the input voltage inputted to the inverter unit is limited within a limit voltage, a switch unit (220) for controlling the input voltage applied to the DC link capacitor unit by performing an on (close) or off (open) operation, and a switch control unit (230) for distributing the input voltage and generating and outputting a control signal for controlling the on-off operation in the switch unit. Accordingly, the present invention can limit an overcurrent flowing in the DC link capacitor and an inverter at a fast reaction speed. 본 발명은 직류 링크 커패시터의 충방전 제어장치 및 제어방법에 관한 것으로서, 직류 링크 커패시터의 충방전 제어장치(200)는 직류 전원을 저장하고 입력전압을 공급하는 충전 전원부(210), 상기 직류 전원을 교류 전원으로 변환하는 인버터부(250), 상기 인버터부로 입력되는 상기 입력전압이 제한전압 이내로 제한되도록 충전 또는 방전을 반복하는 직류 링크 커패시터부(240), 온(on, close)하거나 오프(off, open) 동작하여 상기 직류 링크 커패시터부에 인가되는 상기 입력전압을 제어하는 스위치부(220) 및 상기 입력전압을 분배하고, 상기 스위치부에 온-오프 동작을 제어하는 제어 신호를 생성 및 출력하는 스위치 제어부(230)를 포함한다.