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中文摘要：
随着分布式发电技术的兴起，配电系统的建模与仿真越来越引起人们的重视。文中首先总结了应用于输电系统电磁暂态的主流仿真软件的发展，然后基于几种常用的电磁暂态仿真软件以IEEE4节点配电系统算例比较了在正常和故障情况下各软件算法的特点。通过对算例结果的比较分析表明，稳态时得到的各仿真结果是完全一致的，而在暂态情况下，各程序对开关过程产生的间断点的处理方法有所不同。最后，说明了造成结果差异的主要原因，为配电系统暂态过程的准确仿真奠定了基础。
英文摘要：
In recent years, more and more attentions are paid to the modeling and simulation of distribution system with the distributed generation technology widely used in the world. Firstly,the development of the main software on electromagnetic transient simulation for transmission system is summarized in this paper. Then, some of them are utilized to implement the simulation of the IEEE 4-node test feeder. The simulation results obtained under normal and fault condition are compared and analyzed. The results coincide well with each other in steady state, but they are a little different during the action of switch. The differences are illustrated with the methods adopted in the program. The analysis supplies a basis for accurate research on the problems of distribution system.
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