基于轨迹灵敏度的电网最优无功控制策略研究

针对电网在故障后的电压稳定问题,文章基于轨迹灵敏度分析方法,提出一种新的对于电压稳定问题的无功控制策略。应用该方法,可以利用灵敏度信息,迅速确定最佳无功补偿点,并且能直接计算出所需的无功补偿量。相比于现有的方法,该方法具有过程简单、计算量小、控制结果精确的特点。文章给出了在10机39节点新英格兰典型电力系统上的算例,验证了所提出方法的高效性和精确性。

Research on Optimal Reactive Power Control Strategy of Power Grid Based on Trajectory Sensitivity

In view of voltage stability problem,a new kind of reactive power control strategy for the voltage stability based on the trajectory sensitivity analysis method is proposed.With the use of this method,the optimal reactive power compensation point can be located quickly and amount of reactive power compensation can be calculated directly by use of sensitivity information.The method posses such features as simple procedure,small amount of calculation and correct control result.The high efficiency and correctness of the proposed method is verified by the calculation in new England 10-machine 39-node power system.