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。
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.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2008年第31期42-47,共6页
Proceedings of the CSEE
基金
高等学校博士学科点专项科研基金项目(06D0006)
中国香港理工大学研究项目(A-PA2L)。
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
dynamic phasor
electromagnetic transient
hybrid simulation
distribution parameter line
networkequivalent
curve-fitting
