含DG的配电网系统谐波分布特性研究

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。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 45; no. 14; pp. 38 - 44
Main Author 江友华 常建 唐忠
Format Journal Article
LanguageChinese
Published 上海电力学院电子与信息工程学院,上海,200090%国网浙江省电力公司绍兴供电公司,浙江绍兴,312000 2017
Subjects
PSCAD
分布式电源
谐波分布
配电网
谐波分布
harmonic distribution
DG
分布式电源
distribution network
配电网
PSCAD
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ISSN1674-3415
DOI10.7667/PSPC161035

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Summary: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。
Bibliography:JIANG Youhua1, CHANG Jian2, TANG Zhong1 （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）
41-1401/TM
harmonic distribution; PSCAD; distribution network; DG
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
ISSN:1674-3415
DOI:10.7667/PSPC161035