摘要
在进行电磁暂态仿真时,为降低计算规模,需要对电网数据进行等值处理。在利用电力系统综合稳定程序(PSASP)进行Ward等值后,采用基于戴维南定理的多电势等效理论,实现了电磁暂态仿真时系统的网络等值,并开发了相关的等效转换软件。针对某省级电网算例系统,利用PSCAD/EMTDC仿真软件搭建了等值后的系统模型,对算例系统等值前后的线路潮流、节点电压以及短路电流进行了对比分析,验证了所提出方法的有效性和正确性。
It is necessary to deal with the grid data by equivalent technique for reducing the scale of calculation in electromagnetic transient simulation.After applying the Ward equivalent in power system analysis software package(PSASP),the network equivalent of electromagnetic transient simulation is achieved based on the theory of multi-potential equivalent in Thevenin theorem.And the relevant software for equivalent transformation is also developed.The equivalent system model of a provincial grid is constructed by the simulation software PSCAD/EMTDC.By comparing the power flow,bus voltage and short-circuit current before and after the equivalent treatment,the correctness and validity of the proposed algorithm are verified.
出处
《合肥工业大学学报(自然科学版)》
CAS
CSCD
北大核心
2011年第9期1321-1323,1334,共4页
Journal of Hefei University of Technology:Natural Science
基金
中央高校基本科研业务费专项资金资助项目(2011HGZY0005)
关键词
电磁暂态仿真
WARD等值
网络等值
多电势等效理论
electromagnetic transient simulation
Ward equivalent
network equivalent
theory of multi-potential equivalent
作者简介
汤雪鹏(1987-),男,河南商丘人,合肥工业大学硕士生;
吴红斌(1972-),男,湖北鄂州人,博士,合肥工业大学研究员,硕士生导师;
丁明(1956-),男,安徽合肥人,合肥工业大学教授,博士生导师.