考虑背景谐波波动的谐波责任划分方法  

Harmonic responsibility determination considering background harmonic fluctuation

作　　者：陈静[1] 符玲[1] 臧天磊[1] 何正友[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电力自动化设备》2016年第5期61-66,共6页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51407150;51307146);教育部高等学校博士学科点专项科研基金资助项目(2013018-4110002);四川省科技创新苗子工程项目(2015099)~~

摘　　要：充分考虑背景谐波波动对谐波责任划分的影响,提出用主导波动量法和分位数回归法相结合的方法来进行谐波责任划分。采用主导波动量法筛选用户主导的波动量样本准确地估计背景谐波阻抗,消除背景谐波波动带来的影响。然后将谐波责任划分问题转化为回归方程截距的求取问题,在此基础上,采用分位数回归法实现了背景谐波波动情况下谐波责任的准确划分。所提方法稳健性强,并充分利用了背景谐波电流的波动规律。在IEEE 13节点系统中进行仿真分析,结果验证了所提方法在背景谐波波动的工况下具有准确性高和适应性强的优点。A harmonic responsibility determination method is proposed to fully considerate the influence of background harmonic fluctuation,which is the combination of the dominant fluctuation filtering method and the quantile regression method. The former method is applied to filter the customer-dominant harmonic fluctuation samples for accurately estimating the background harmonic impedance and eliminating the effects of background harmonic fluctuation. The determination of harmonic responsibility is then converted into the determination of the intercept of regression equation,based on which,the later method is applied to determine the harmonic responsibility in the condition of background harmonic fluctuation. With better robustness,the proposed method can fully use the fluctuation rule of background harmonic current. The simulation analysis is carried on with IEEE 13-bus system and the simulative results show that,the proposed method has high accuracy and adaptation in the condition of background harmonic fluctuation.

关 键 词：谐波分析 谐波责任划分 主导波动量法 分位数回归 背景谐波波动 

分 类 号：TM711[电气工程—电力系统及自动化]