基于监测和IAHP的公用电网谐波综合权重计算方法

A monitoring and IAHP based calculating method of comprehensive weights for public grid harmonics

提出了一种基于负荷支路实际谐波电流监测值和改进层次分析法(IAHP)的公用电网谐波综合权重计算方法。通过对经典AHP本质的分析,提出了一种自动生成AHP中判断矩阵的算法,可以显著提升高阶判断矩阵通过一致性检验的概率,既弥补了经典AHP的不足,又避免了专家给出判断矩阵时可能出现的前后比较结果矛盾的问题。提出了由各负荷支路实际谐波电流监测值所得客观权重生成IAHP中初始判断矩阵推荐值的算法。经算例验证表明,所提出的算法可以使公用电网各次谐波综合权重的计算更加简捷,计算所得权重更加合理。

A calculating method of comprehensive weights for public grid harmonics based on the monitoring values of the harmonic currents and IAHP is proposed. Firstly, after analyzing the essence of Analytic Hierarchy Process （AHP）, we propose a method of automatically generating the judgment matrix of AHP, which can make the high-level matrix pass the consistency test more easily, also it can make up for the drawbacks of AHP and avoid the possible contradictories of experts when comparing two elements~ Secondly, we propose another method of generating the recommended initial judgement matrix of IAHP by the objective weights from all the monitoring values of harmonics; Finally, numerical examples validate that the proposed arithmetics can simplify the process of calculating comprehensive weights for public grid harmonics, and the results will be more reasonable.