基于灵敏度法确定无功补偿地点

电压/无功灵敏度分析是电压稳定分析的一种重要的方法,系统节点的电压/无功灵敏度指标的大小反映了系统的电压稳定水平。将电压稳定与无功补偿地点的选择相联系,从无功补偿点的补偿效应出发,提出一种基于灵敏度法确定无功补偿地点的方法。该方法是通过选择无功补偿节点使得最大程度地降低系统的电压/无功灵敏度,由G reedy算法得到问题的初始解,然后通过迭代求解算法得到整个问题的解,使原问题得到更好的优化结果。算例表明本文提出的方法是有效和可行的。

Allocation of Reactive Compensation Using Sensitivity Analysis Approach

Voltage/reactive sensitivity analysis is an important method for voltage stability analysis.The buses' voltage/reactive sensitivity reflects the level of voltage stability.Considering the reactive compensation effect,an optimal selection of reactive compensation site using sensitivity analysis approach is proposed.The method makes the system voltage/reactive sensitivity as low as possible by selecting the reactive compensation site.The primary solution of the problem is obtained by Greedy algorithm,then an optimized solution is achieved by iterative solving algorithm.Case studies demonstrate that the method is effective and feasible.