DYNAMIC VOLTAGE DIP/SAG CONTROLLER CAPABLE OF CONTROLING ON/OFF OF BYPASS SCR

摘要

The present invention relates to a kind of devices, the switch bypass thyristor that can be controlled for compensating momentary interruption. The device is for compensating momentary interruption includes bypass which bypass current of thyristor; A kind of which power voltage step down of low-frequency transformer is by requesting the electric current; The electric current of which switch low-frequency transformer of inverter; The inverter of the charge and electric current that charge with super capacitor. The converter includes that first switch, second switch and third switch are switched with the 4th, this to be serially connected. Interconnecting piece, the switch are connected to low-frequency transformer. The switch is connected to two super capacitors. Both ends are connected in parallel. When the both ends bypass thyristor forward bias of present invention closing reverse current is provided, it is applied to the switch of bypass turn on thyristors, second switch and third switch OFF operation bypass thyristor are in the reverse current of flowing in bypass thyristor, so that the operation of the bypass thyristor and switching device that control handover operation does not remove the bypass thyristor that circuit separates for inverter. ;The 2014 of copyright KIPO submissions