Power System Configuration And Classification Of The Power Source Voltage Control

Power system reactive distributing influence on the system security stability and economy directly. Reactive/voltage control is a necessary measure to improve system voltage stability level and prevent voltage collapse. The text expatiate the content of power system reactive optimization and voltage control, laying stress on the study of reactive sources allocation and voltage control partition.Reactive sources allocation include allocation site, number and capacity of reactive sources. An optimal allocation of reactive power sources using reactive compensation pilot buses approach is proposed as thinking about improving the system voltage level. The concept of reactive compensation pilot buses is presented by contacting with voltage control in the allocation of reactive power sources. The optimization mode of reactive compensation pilot buses selection is established and an iterative arithmetic is putted forward. The result of test system demonstrate that the method is effective and feasible. Then, a method of confirming the number of reactive power sources as think about system security stability and economy.The first question of power system classification voltage control is partition of control area. In this paper, a tree form distribution based network partitioning for voltage control method. The tree form distribution table which reflecting the system sites electric coupling character is got by taking different α value to decompose the system electric distance matrix, then partition the areas according the practical situation and need by expert system. The partition level is improved and the divisional rationality is guaranteed, and it can adapt the division result rapidly according different request of voltage control level, so this partition way has good flexibility and purpose.