Circuit for preventing frequent switching of dynamic voltage recovery device and control method

The invention belongs to the technical field of intelligent power distribution, provides a circuit for preventing frequent switching of a dynamic voltage recovery device and a control method, and solves the problem that a load cannot work normally due to frequent action of the dynamic voltage recove...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CHEN JIE, LIU JIANYE, XIE LIYING, CHI ENXIAN, HAO LI, YANG JUN, WANG DETAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention belongs to the technical field of intelligent power distribution, provides a circuit for preventing frequent switching of a dynamic voltage recovery device and a control method, and solves the problem that a load cannot work normally due to frequent action of the dynamic voltage recovery device DVR. The resistance-capacitance branch comprises a second thyristor, and the controller is used for judging whether the sampled power grid voltage is normal or not and sending a command to the second thyristor; the second thyristor is used for receiving a command from the controller to input or cut off the resistance-capacitance branch, specifically, when the voltage of the power grid is normal, the second thyristor is cut off, and the resistance-capacitance branch is separated from the power grid at the moment; when the voltage of the power grid is abnormal, the second thyristor is switched on, the resistance-capacitance branch is connected into the power grid at the moment, the resistance-capacitance br