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中国电机工程学报 2008, 28(31) 42-47 DOI:
ISSN: 0258-8013 CN: 11-2107/TM |
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| 电力系统仿真及分析计算 |
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动态相量法在电力系统仿真中的应用 |
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鄂志君 应迪生 陈家荣 张明 房大中 |
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天津大学电气与自动化工程学院 上海浦东科技投资有限公司 香港理工大学电机工程系 上海交通大学电气工程系 天津大学电气与自动化工程学院 |
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摘要:
基于动态相量理论,提出发电机、分布参数线路的动态相量模型,讨论机-网接口方式。并对动态相量(dynamic phasor,DP)模型和电磁暂态(electromagnetic transient,EMTP)模型的混合仿真(DP-EMTP)进行研究,利用分布参数线路等效电路两端网络自然解耦的方式将整个网络进行分割,使用曲线拟合技术提高混合仿真接口精度,对比不同网络等效方法的优劣,并分析混合仿真中的相位偏移产生的原因。通过对仿真算例的比较和分析,验证发电机模型和分布线路模型的准确性,同时也证明DP-EMTP混合仿真的有效性和正确性。 |
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关键词:
动态相量法
电磁暂态
混合仿真
分布参数线路
网络等效
曲线拟合
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Application of Dynamic Phasor in Power System Simulation |
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E Zhi-jun YING Di-sheng CHAN Ka-wing ZHANG Ming FANG Da-zhong |
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Abstract:
Dynamic phasor (DP) models of generator and line with distributed parameters were developed using generalized averaging method in this paper. Then interface between generator and electric power network was discussed. The preliminary research on the hybrid simulation of dynamic phasor and electromagnetic transient program (DP-EMTP)was performed and implemented with the proposed DP models. The natural-decoupling characteristics of distributed parameter line equivalent circuit helped to decompose electric power network, and weighted curve fitting method improved the interface accuracy of hybrid simulation. The phase offset caused by frequency mismatch during the interaction were also depicted. Case studies on the test systems were performed to assess the performance of the DP models and verify the effectiveness and efficiency of DP-EMTP hybrid simulation. |
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Keywords:
dynamic phasor
electromagnetic transient
hybrid simulation
distribution parameter line
network equivalent
curve-fitting
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收稿日期 2007-09-21 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: 鄂志君 |
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作者简介: |
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作者Email: ezj1977@yahoo.com.cn;ezj1977@hotmail.com |
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| 参考文献: |
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| 本刊中的类似文章 |
| 1.应迪生 张明 陈家荣.三相分布参数线路动态相量法的建模与仿真[J]. 中国电机工程学报, 2007,27(34): 46-51 |
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| Copyright by 中国电机工程学报 |