The Harmonic Current Emission Level of the Residential Loads in the Distribution Network
Tang Bo1, LinShunfu1, Chen Guang2, Le Endian3, Li Yang1
1.Electric Power Engineering Shanghai University of Electric Power Shanghai200090 China 2.State Grid Shanghai Power Supply Company Shanghai 200072 China 3.State Grid Zhoushan Power Supply Company Zhoushan 316021 China
Abstract：This paper presents a method to assess the harmonic current contributionsat the PCC,and introduce two indices of the harmonic current contribution and probability distribution curves.The harmonic impedance is evaluated with the symbolicdiscriminated method and the canonical correlation analysis method respectively, and then the residentialharmonic emission level is qualified.The simulation and practical case study results prove that the canonical correlation analysis method has a better accuracy to assess the harmonic impedance than the symbolicdiscriminated method does. Moreover, the canonical correlation analysis method is applicable in the scenario that the harmonic fluctuation of the system side is bigger than that of the customer side. The harmonic current probability distribution curvesshow multi-peakscharacteristics, whichcan reflect the combination of electrical appliances.The study results are useful to identify the residential harmonic sources and to determine the controlmeasures and supervision policy.
汤波, 林顺富, 陈光, 乐恩典, 李扬. 居民配电网负荷谐波电流发射水平评估方法[J]. 电工技术学报, 2018, 33(3): 533-542.
Tang Bo, LinShunfu, Chen Guang, Le Endian, Li Yang. The Harmonic Current Emission Level of the Residential Loads in the Distribution Network. Transactions of China Electrotechnical Society, 2018, 33(3): 533-542.
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2018, Vol. 33 
