Assessment method of dynamic reactive power valuation for transient voltage stability

Dynamic reactive power sources can make response for reactive power demand rapidly in order to improve power system transient voltage stability. As reactive power is a local product, its value to transient voltage support very much depends on the location in the power system. Meanwhile, the value of reactive power compensation at the same location is nonlinear as well. It has resulted in a great need to quantify the value of reactive power support from dynamic reactive power sources for transient voltage stability. This paper presents a method of equivalent dynamic reactive power valuation for transient voltage stability. This method emphasizes that the valuation of dynamic reactive power sources should be based on their contributions to system transient voltage stability. The effectiveness of the proposed method has been tested on a 10-bus test system.