摘要
本文针对双机四节点闭式电力网络,采用matlab编程和simulink建模仿真两种不同的方法,在集中参数和分布式参数不同线路模型下进行稳态分析,将编程运行结果与powergui模块提供的稳态电压电流分析结果进行对比,实验结果表明,两种方法均能准确地对系统进行稳态分析,在大型复杂的闭式电力网络中前者相对简单高效。在线路电压等级为110k V,传输距离不超过150km的情况下,集中参数线路模型完全可以取代分布式参数线路模型,符合系统运行要求。
Both programming method based on maflab and modeling method based on simulink are used to deal with power system steady-state analysis for the two-machine four-node closed power network in the thesis, when the line mod- ule uses three-phase pi section line module for the first time and the distributed parameters line module for the second time in the experiment. It indicates that both of the two methods can be applied to the problem of power system steady- state analysis by the comparison of the results of steady-state voltage and current provided by the two experiments men- tioned above, what＇s more, programming method based on matlab is more simple and effective in the large-scale closed power network. Furthermore, three-phase pi section line module can completely replace the distributed parameters line module when the nominal voltage of the transmission line is 1 lOkV and the transmission distance is shorter than 150kin, which can meet the requirements of the power system operation.
出处
《电气开关》
2016年第4期51-54,共4页
Electric Switchgear
