The main objective of this project is to develop a voltage stability margin computation method using PMU data. The approach is to use the PMU data to estimate the Thevenin equivalent voltage and reactance, allowing a smaller size system to be analyzed for real-time stability application. Simultaneously, a new steady-state voltage stability technique called the AQ-bus method has been developed, which benefited this proposed voltage stability method. The program was handed over to BPA to allow for calculation, in an off-line capacity, of stability concerns.
