Development of a small, high-performance, voltage sag compensator COMPACT for high voltage users

The influence of instantaneous voltage drops in the power systems due to lightning have become a significant issue, because manufacturing facilities have become highly sophisticated and intelligent. On the other hand, it may be impossible to completely avoid instantaneous voltage drops in power systems caused by natural phenomena. In order to solve the problem of the voltage drops, this paper presents a high-speed compensation system for the instantaneous voltage drops, COMPACT. This paper describes the COMPACT and confirms its high speed switching performance.