Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (4): 84-90.doi: 10.3969/j.issn.1000-565X.2016.04.013

• Power & Electrical Engineering • Previous Articles     Next Articles

Influence of Distributed Photovoltaic Power Generation on Harmonic Characteristics of Power Distribution Network

YE Lin-hao1,2 HUANG Wei2 ZHANG Yong-jun1   

  1. 1.School of Electric Power，South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Foshan Power Supply Bureau,Guangdong Power Grid Corporation,Foshan 528000,Guangdong,China
  • Received:2015-06-24 Revised:2015-12-19 Online:2016-04-25 Published:2016-04-12
  • Contact: 叶琳浩(1983-) ，男，博士生，现任职于广东电网有限责任公司佛山供电局，主要从事电力系统优化运行与规划研究． E-mail:tcyyllhh@163.com
  • About author:叶琳浩(1983-) ，男，博士生，现任职于广东电网有限责任公司佛山供电局，主要从事电力系统优化运行与规划研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51377060)

PDF

213

Abstract: In order to investigate the influence of distributed photovoltaic power generation on the harmonic characteristics of power distribution networks,a simplified model for the theoretical analysis of power distribution network is established，which considers the influences of cable capacitance and reactive power compensation device on the system response characteristics.Next,an actual distribution network model based on Digsilent is constructed by using the constant-current source model commonly used in engineering practice as the harmonic source model,and the model is then used to reveal the harmonic characteristics affected by the PV access mode and the system response characteristics of capacitance.Simulated results show that specific grid structure may amplify the harmonic and cause excessive waveform distortion，and that the distortion level can be decreased by optimizing the access location and dispersion of PV and by improving the filtering channels.

Key words: power distribution network, renewable energy, distributed photovoltaic power generation, harmonic distortion