CONTROL PROTECTION METHOD, DEVICE AND SYSTEM FOR SERIES CAPACITOR DEVICE

摘要

A control protection method, device and system for a series capacitor device.The series capacitor device includes a plurality of common node branches, each branch of the plurality of common node branches being provided thereon with a current transformer used for measuring a current signal on the branch thereof, and the plurality of common node branches including a bypass breaker branch.By receiving the current signals in a plurality of common node branches measured at the same sampling time by each current transformer, identifying whether or not the current signals in the plurality of common node branches satisfy Kirchoff's current law, and determining that the current signals in the plurality of common node branches are not trustable when Kirchoff's current law is not satisfied, thus locking the current protection of the series capacitor device, and enabling the reliability and security of the protection of the series capacitor device to be improved.