Abstract：Growing harmonic pollution problems cause serious harm to the safe and economic operation of power system. It is necessary to separate the emission level of power system and customers. In this paper, the harmonic emission level assessment methods based on independent random vector covariance characteristics and binary linear regression were used to calculate the system harmonic impedance and the background harmonic voltage. The system harmonic impedance and the background harmonic voltage were calculated by the simulation model at the platform of PSCAD and programming with Matlab, then customer harmonic emission level were evaluated. Through the evaluation results of the two methods and the comparative analysis of their characteristics, it was concluded that the two methods had their respective advantages and disadvantages in calculating harmonic impedance and the background harmonic voltage under different conditions.
[1] 肖湘宁,徐永海.电能质量问题剖析[J].电网技术,2000,24(3):36-38. [2] Bollen M H J.Understanding power quality problems. Voltage sags and interruption[M].New York:IEEE PRESS,2000. [3] 王安,粟时平,邓奇峰,等.基于小波变换的暂态电能质量扰动检测与定位研究[J].电气技术,2012(4):21-25. [4] 胡铭,等电能质量及其分析方法综述[J].电网技术,2000,24(3):36-38. [5] Wilsun Xu,YiLu Lin.A method for determining customer and utility harmonic contribution at the Point of common coupling[J].IEEE Transactions on Power Delivery,2000(15):804-811. [6] 贾秀芳,华回春,曹东升,等.基于复线性最小二乘法的谐波责任定量划分[J].中国电机工程学报,2013(4): 149-155,20. [7] Yang H,Porotte P,Robert A.Assessing the harmonic emission level from one particular customer. Proceedings of PQA`94[A].Amsterdam: EPRI of USA[C]. 1994: B-2.08. [8] Srinivasan. K. On separating customer and supply side harmonic contributions[J].IEEE Transactions on Power Delivery, 1996, 112(4): 1003-1012. [9] 张安安,杨洪耕.基于畸变波形同步分层估计谐波阻抗的探讨[J]. 电力系统自动化,2003(9):41-44. [10] 赵勇,张涛,李建华,等. 一种新的谐波源简化模型[J]. 中国电机工程学报,2002(4):47-52. [11] Wilsun Xu,Yilu Liu.A method for determining customer and utility harmonic contribution at the point of common coupling[J].IEEE Transactions on Power Delivery,2000,15(2):3-16. [12] 赵勇,沈红,李建华,等. 谐波源的识别及其与非谐波源的分离方法[J]. 中国电机工程学报,2002(5):85-88. [13] 惠锦,杨洪耕,林顺富,等.基于独立随机矢量协方差特性的谐波发射水平评估方法[J].电力系统自动化,2009(7): 27-31. [14] 张巍,杨洪耕.基于二元线性回归的谐波发射水平估计方法[J].中国电机工程学报,2004(6):54-57. [15] 张峰,何新,杨丽君.用于电能质量分析的电弧炉仿真模型[J]. 电气技术,2013(7):34-38. [16] Gursoy E,Niebur D.Harmonic load identification using complex independent component analysis[J].IEEE Transactions on Power Delivery,2009,24(1):285-292.
2014, Vol. 15 
