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中国电机工程学报 2008, 28(10) 117-122 DOI:
ISSN: 0258-8013 CN: 11-2107/TM |
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| 输配电及供电 |
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应用非线性元件耦合矩阵模型的谐波潮流算法 |
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郑伟杰 徐文远 孙媛媛 |
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山东大学电气工程学院 山东大学电气工程学院 山东大学电气工程学院 |
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摘要：
基于非线性元件的线性耦合导纳矩阵模型提出一种谐波潮流的新算法，并以晶闸管控制电抗器(thyristor controlled reactor，TCR)为例来阐述潮流算法的思路。由于谐波耦合导纳矩阵是非线性元件TCR线性化后的模型，将该数学模型与系统方程联立，通过求解一系列线性方程即可获得系统谐波潮流结果。在供电电压严重畸变的情况下，提出用谐波电压积分求得TCR开关函数的关断角，由此对耦合导纳矩阵模型进行修正，再用修正后的模型迭代求解谐波潮流。时域仿真法验证修正后TCR谐波导纳矩阵模型的精确度和谐波潮流算法的有效性。 |
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关键词：
电力系统谐波
谐波矩阵
谐波潮流
开关函数
晶闸管控制电抗器
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Harmonic Power Flow Calculation Using Linearly Coupled Admittance Matrix Model for Nonlinear Elements |
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ZHENG Wei-jie SUN Yuan-yuan XU Wen-yuan |
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Abstract:
A novel harmonic power flow algorithm was presented. The algorithm is based on the linearly coupled admittance models for nonlinear elements. A thyristor controlled reactor (TCR) was used as an example of nonlinear element to demonstrate the performance of the proposed algorithm. Since the model for the nonlinear TCR element is linear, a linear network solution in harmonic domain is sufficient to obtain the harmonic power flow results. This paper also investigated the impact of high harmonic voltage distortions on the accuracy of the coupled admittance model and the associated harmonic power flow results. An iterative method was proposed to improve the original linear network solution method for cases involving very high amount of harmonic voltage distortions. |
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Keywords:
power system harmonics
harmonic matrix
harmonic power flow
switching function
thyristor controlled reactor
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收稿日期 2006-12-20 修回日期 1900-01-01 网络版发布日期 |
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DOI: |
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基金项目:
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通讯作者: 郑伟杰 |
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作者简介: |
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作者Email: dianlidianzi_@163.com;dianlidianzi@mail.sdu.edu.cn;zhwj@epri.ac.cn |
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| 参考文献： |
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| 本刊中的类似文章 |
| 1．李天云 程思勇 杨梅.基于希尔伯特-黄变换的电力系统谐波分析[J]. 中国电机工程学报, 2008,28(4): 109-113 |
| 2．郑伟杰 徐文远.TCR非线性特性的线性耦合导纳矩阵模型[J]. 中国电机工程学报, 2008,28(1): 59-64 |
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| Copyright by 中国电机工程学报 |
