无功优化调度的“源-网-荷”参数全局灵敏度分析

Global Sensitivity Analysis of “Source-Grid-Load” Parameters of Optimal Reactive Power Dispatch

不确定因素对无功优化调度的影响缺乏定量的分析。考虑电源、电网、负荷三个环节中存在的不确定因素,采用基于方差的灵敏度分析(Variance-Based Sensitivity Analysis,VBSA)方法,对无功优化调度的参数灵敏度进行定量分析。介绍了VBSA的灵敏度计算方法,研究了无功优化调度模型参数灵敏度分析的输入变量、输出指标及分析流程,最终通过算例表明采用所提出的参数灵敏度分析方法,可以定量评估不同环节的不确定因素对无功优化调度的影响。

The lack of quantitative analysis for the influence of uncertain factors on optimal reactive power dispatch(ORPD).Variance-based sensitivity analysis(VBSA)approach was used to analyze parameter sensitivities in ORPD quantitatively,concerning the uncertain factors in source,grid and load.Specifically,how to obtain the sensitivity with VBSA was introduced.And then the input variables,output indicators and analysis procedure were presented.Finally,the proposed sensitivity analysis approach for parameters was verified by a case.The results show that,the influence of uncertain factors in different sectors on ORPD can be evaluated quantitatively by using the proposed sensitivity analysis approach.