NEURALNETWORK BASED SIMULATION NEIGHBORING THEAREAOF VOLTAGESTABILITY LIMITAND STABILITY MARGIN ASSESSMENT
LiYan. Cheng Shijie (Huazhong University ofScience and Technology, 430074, Wuhan, China)
According to acertain system operating in a given m ode, an errorback-propagation neuralnetw ork with a variable learning factor is used to sim ulate pow ersystem transientofa load busaround the static voltage stability lim it. Sam ples used to train the neuralnetwork are obtained from the load flow m ulti-solution and the relative nearby solutions. As a result, the static voltage stability lim it can be estim ated accurately, and the static voltage stability m argin atthe load buses for a given operation condition can be assessed correctly.