电力系统自动化2012，Vol.36Issue(3)：65-70,6.
考虑电流波动特性的系统侧谐波阻抗估计方法
A Power System Harmonic Impedance Assessment Method Considering Current＇s Fluctuation Characteristic
王诗超 1沈沉 1程建洲1
作者信息
- 1. 电力系统国家重点实验室、清华大学电机系,北京市100084
- 折叠
摘要
Abstract
Based on the theory of time-varying dynamic phasors,this paper finds that the current＇s fluctuation characteristic has an effect on the assessment accuracy of power system harmonic impedance using the fluctuation method,and that the relationship between the system harmonic impedance,harmonic voltage and harmonic current is non-linear at the common coupling point.In some cases,the assessment error of the system harmonic impedance based on the fluctuation method may be significant.Therefore,this paper proposes a least squares fitting algorithm to assess the magnitude of system harmonic impedance.Typical Monte Carlo simulations are carried out on PSCAD.Results show that the proposed method is valid and more suitable for engineering application.关键词
电能质量/波动量法/谐波阻抗/时变动态相量Key words
power quality/fluctuation method/harmonic impedance/time-varying dynamic phasors分类
信息技术与安全科学引用本文复制引用
王诗超,沈沉,程建洲..考虑电流波动特性的系统侧谐波阻抗估计方法[J].电力系统自动化,2012,36(3):65-70,6.
