The Study Of Dynamic Voltage Partition Based On Controllable Pilot Nodes And Voltage Rectification

With the rapid development of power net, more and more monitored nodes should be controlled. So traditional methods using experience of the operators can't meet the control demands of the power system. Therefore, using graphic theory and operation experience of foreign tertiary control model for reference, this thesis put forward a dynamic voltage partition based on controllable pilot nodes and voltage rectification method considering the voltage influence between voltage control areas (VCA). In the method, it uses the network topology based on Object-Oriented Technology. In the network topology, it uses node-merging and individual searching, which shorten the formation time of the network topology structure. In the voltage partition, it uses the iteration algorithm between the pilot nodes and the VCA. In the iteration, it uses the administration partition as the initial value. In the voltage control, it considers the voltage changing of the nodes that belongs to the conjoint VCA and linked to the tie line between the two SVA at the same time. In the thesis, it adds the influence to the traditional secondary voltage control as a feedback. By this way, the resolution of whole power net is diverted into calculating smaller sub-areas. As a result, it can reduce the dimension of the formula and the movement times of the reactive-load compensation equipment, shorten the voltage rectification time, improve the control veracity. The methods above prove a very perfect effect in the emulation of the real system profile data that get from the Fijian Province's power net.