Application of new emergency control principle in power systems

Abstract

Paper considers common issues of emergency automation preventing power system stability disturbance. Emergency automation operating on new principle during real emergency time calculates the value of necessary power impact dose on power system to prevent the stability disturbance. As a result improves the control efficiency of emergency conditions. In paper some examples of emergency conditions under different modes of disturbances and location of emergency control are performed.

Development of Smart Underfrequency Load Shedding System

“…The drawback of traditional UFLS is that value of shedded load sometimes does not coincide with the value of active power deficiency. As consequence of this imbalance overfrequency or frequency hovering situations can occur [6,7].…”