Research Papers/Topics in Electrical Power And Machines

A New Voltage Stability Index For Predicting Voltage Collapse In Electrical Power System Networks

ABSTRACTPower system voltage instability often results in voltage collapse and/or system blackoutwhich is a source of concern for power network operators and consumers. This workproposes a new line stability index that is suitable for investigating the voltage stabilitycondition of Power System Networks (PSNs). This index, which is called the New LineStability Index-1 (NLSI_1), is derived from first principles and shown to incorporate theLine Stability Index (Lmn) and the Fast Voltage S...

Development Of Nonlinear Control Schemes For Electric Power System Stabilization

ABSTRACTPower system stabilizers and other controllers are employed to damp oscillations inpower systems, thereby guaranteeing satisfactory dynamic performance following majornetwork disturbances. However, the parameters of these controllers are often tuned basedon the power system linearized model which generally is a function of the systemoperating point or state. These controllers suffer from poor performance when the systemstate changes. The aim of the research work reported in thi...