Transactions of China Electrotechnical Society  2018, Vol. 33 Issue (zk2): 567-576    DOI: 10.19595/j.cnki.1000-6753.tces.L80046
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Analysis of Resonance Degradation Problem of Wide-Band Frequency Harmonics and Its Influence on Harmonic Standards
Zhou Ke1, Tu Chunming2, Xie Weijie2, Xiao Fan2
1. Electric Power Research Institute of Guangxi Power Grid Nanning 530023 China;
2. National Electric Power Conversion and Control Engineering Technology Research Center Hunan University Changsha 410082 China

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Abstract  With the development of smart grid and new energy generation, the number of power electronic devices in power grid is constantly increasing, which makes the harmonic characteristics of power grid become wide-band. The harmonics will be boosted by the distribution capacitance in long distance HV transmission lines, and lead to a serious harmonic problem. In this paper, a wide-band frequency transmission line model considering the influence of distributed capacitance is established, and the internal mechanism of harmonic resonance degradation is studied. Through theoretical analysis and measurement for an actual line, the correctness of the resonance deterioration analysis method which proposed in this paper is verified. A comparative study is made between the GB and the international electrotechnical commission (IEC) standard. It is found that the existing standards cannot fully cover the harmonic problems with new characteristics. This paper can provide a theoretical reference for standard optimization.
Key wordsPower quality      wide-band frequency harmonics      harmonic resonance      harmonic standard     
Received: 04 June 2018      Published: 15 February 2019
PACS: TM13  
  TM76  
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Zhou Ke
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Zhou Ke,Tu Chunming,Xie Weijie等. Analysis of Resonance Degradation Problem of Wide-Band Frequency Harmonics and Its Influence on Harmonic Standards[J]. Transactions of China Electrotechnical Society, 2018, 33(zk2): 567-576.
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