The three-phase asynchronous induction motor models in EMTDC are deduced and the solution algorithms of induction motor transient process are introduced.
推导了电力系统电磁暂态仿真软件EMTDC中的三相异步电动机模型，介绍了电动机暂态过程的求解算法。
The principle and control strategy of the proposed converter are described. Its operational feasibility is also verified by digital simulation using the PSCAD/EMTDC package.
分析了该换流器的拓扑结构和工作原理，并使用PSCAD/EMTDC软件对其进行了仿真验证，为将来的实机制造提供了参考。
Finally, the unbalanced current in Shenzhen power grid is reproduced by simulation with EMTDC. Based on conclusions of earlier studies, a solution is proposed and it is proved by simulation.
最后以EMTDC仿真为手段对深圳电网典型线路的不平衡电流进行再现，并根据前文的研究结论提出相应的解决方法并仿真验证。
The EMTDC simulations indicate that the method can find out the faulty line correctly and prove that the analysis of the angle-frequency characteristic of zero impedance of the line is correct.
EMTDC仿真试验结果表明该方法可以准确地实现单相故障选线，并验证了文章对输电线路零序输入阻抗相频特性分析的正确性。
The program structure of PSCAD/EMTDC is analyzed, and the method of realizing the user-defined model which is based on the interface technique between PSCAD/EMTDC program and C language is presented.
分析了PSCAD/EMTDC的软件结构，提出了基于PSCAD/EMTDC和C语言接口技术的自定义模型的实现方法，用C语言构建了以实际保护装置为原型的数字式距离保护模型。
The program structure of PSCAD/EMTDC is analyzed, and the method of realizing the user-defined model which is based on the interface technique between PSCAD/EMTDC program and C language is presented.
分析了PSCAD/EMTDC的软件结构，提出了基于PSCAD/EMTDC和C语言接口技术的自定义模型的实现方法，用C语言构建了以实际保护装置为原型的数字式距离保护模型。
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