Abstract
Voltage reactive power control (VQC) on power systems becomes difficult when a load increases or decreases rapidly, especially in the morning and at noon. This is caused mainly by two problems. One is delayed operation and the other is noncooperative operation of facilities. To solve these problems, an advanced method for a centralized feed-forwarding control system and algorithms are pre-sented. They are based on two main steps, forecasting power system state for several minutes and dispatching reactive power sources optimally based on stepwise linear programming. The proposed method is evaluated and tested for data of a large scale power system. Results show that the proposed method keeps the voltage constraints well and reduces redundant operation of facilities.
