| 引用本文: | 江友华,常建,唐忠.含DG的配电网系统谐波分布特性研究[J].电力系统保护与控制,2017,45(14):38-44. |
| JIANG Youhua,CHANG Jian,TANG Zhong.Research on harmonic distribution characteristics of distribution network with DG[J].Power System Protection and Control,2017,45(14):38-44 |
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| 摘要: |
| 为分析含DG的配电网谐波分布特性，首先基于DG与配电网耦合系统拓扑结构推导出谐波耦合导纳矩阵，其表明阻抗网络参数变化会影响谐波分布。然后给出含有DG的配电网数学模型，从理论上分析出配电网中谐波电压畸变率的变化规律的影响因素。最后基于PSCAD搭建了分布式电源与配电网联合仿真系统，针对分布式电源(风力发电，太阳能发电)不同出力、不同位置，仿真分析分布式电源对配电网谐波分布的影响。仿真研究结果表明:DG的分布位置，不同出力直接影响配电网谐波分布。该研究结果对分布式电源的选址和定容有重要的参考价值。 |
| 关键词: 谐波分布 PSCAD 配电网 分布式电源 |
| DOI：10.7667/PSPC161035 |
| 分类号: |
| 基金项目:上海市地方能力建设项目(14110500900) |
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| Research on harmonic distribution characteristics of distribution network with DG |
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JIANG Youhua1,CHANG Jian2,TANG Zhong1
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(1. School of Electrical and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China;2. Shaoxing Power Supply Company, State Grid Zhejiang Electric Power Company, Shaoxing 312000, China)
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| Abstract: |
| To analyze harmonic distribution characteristics of distribution network with DG, first, based on the topology between DG and distribution network coupling system, harmonic coupling admittance matrix is deduced, which indicates the changes of impedance network parameter can affect the harmonic distribution; second, a distribution network mathematical model with DG is given, and the factors that influence variation rule of distribution network harmonic voltage distortion rate are analyzed theoretically; finally, a joint simulation system of DG and distribution network is built based on PSCAD, and according to different output and different positions of DG (wind power, solar power), the impact of DG on distribution network harmonic distribution is analyzed. Simulation results show that the positions distribution of DG and different output will influence harmonic distribution directly, which has an important reference value for the locating and sizing of DG. |
| Key words: harmonic distribution PSCAD distribution network DG |
