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科学软件网是一个以引进国研软件，提供软件服务的营业网站，网站由北京天演融智软件有限公司创办，旨在为国内高校、科研院所和以研发为主的企业事业单位提供的科研软件及相关软件服务。截止目前，科学软件网已获得数百家国际软件公司正式授权，代理销售科研软件达一千余种，软件涵盖领域包括经管，仿真，地球地理，生物化学，工程科学，排版及网络管理等。同时，还提供培训、课程（包含34款软件，66门课程）、实验室解决方案和项目咨询等服务。
Insulation coordination of transformers, breakers and arrestors
Impulse testing of transformers
Sub-synchronous resonance (SSR) studies of networks with machines, transmission lines and HVDC systems
Evaluation of filter design
Harmonic analysis including resonance
Control system design and coordination of FACTS and HVDC; including STATCOM, VSC, etc.
Variable speed drives of various types, including cycloconverters and transportation and ship drives.
An EMTDC simulation begins at a specified start time and finishes at a specified end time. Between these two times, the program performs the same sequential process iteratively, each iteration incrementing the time by a specified interval. This interval is referred to as a time step, which remains constant (i.e. fixed) during the course of the simulation.
As illustrated by Figure 2-1, the core solution process begins and ends with the system dynamics. First, variables are initialized and stored in BEGIN. Dynamic functions are performed in DSDYN, which includes the preparation of electric network devices such as sources, etc., as well as the manipulation of control **s. The electric network is solved and the resulting measured quantities are considered, along with any post-solution processing requirements, in DSOUT, before the time step is incremented.
Of course, the complete EMTDC solution sequence is more involved than that shown in Figure 2-1. There are several other features present that ensure solution accuracy and speed; all of which are discussed in the following sections. A more complete program process is illustrated in Figure 2-2.
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随着电力系统的发展，对的、直观的仿真工具的需求变得越发重要了。用PSCAD，您能够创建、仿真、并能轻易地模拟您的系统，给电力系统仿真提供了无限可能。PSCAD包括一个完整的系统模型库，系统模型从简单的无源元件和控制功能，到电机和其他复杂的设备。
PSCAD得益于30多年的不断研究和开发。我们从**用户群的想法和反馈中得到启发。这个哲理使得PSCAD成为当今受欢迎的电力系统暂态仿真软件。
Manitoba Hydro International Ltd所能提供的项目研究以及给世界各地的公司提供过的服务。
绝缘配合研究
我们和ABB Schweiz AG公司签约完成对沙特阿拉伯王国380 kv GIS变电站绝缘配合的研究。这些研究成果包括暂态过电压（TOV），操作过电压（SOV）和雷电感应过电压。
暂态恢复电压（TRV）研究
我们为Red Eléctrica de España进行了345KV串联电感器暂态恢复电压（TRV）的研究，高压输电线路的故障限流以及暂态稳定改善方面有时候是需要串联电感器的（虽然并不常用），串联电感器对断路器的暂态恢复电压提出了挑战。由于串联电感器的安装并不常见，所以每种情况必须仔细评估考虑断路器，电容耦合电压互感器（CCVTs）和其他主站设备的位置。在TRV这些类型的研究方面我们是非常的。
科学软件网是一个以引进国外科研软件，提供软件服务的营业，由天演融智软件有限公司创办，旨在为国内高校、科研院所和以研发为主的企业事业单位提供的科研软件及相关软件服务。截止目前，科学软件网已获得数百家国际软件公司正式授权，代理销售科研软件达一千余种，软件涵盖领域包括经管，仿真，地球地理，生物化学，工程科学，排版及网络管理等。同时，还提供培训、视频课程（包含34款软件，64门课程）、实验室解决方案和项目咨询等服务。
不管您是需要购买单款软件，还是制定整个实验室的购买方案，都可以提供。
EMTDC vs. Other EMTP-Type Programs
The electric network solution in EMTDC and some other EMTP-type programs, are based on the principles outlined in the classic 1969 paper by Hermann Dommel [1]. However, EMTDC has been independently developed from these other programs.
Virtually all power system models and techniques used in other EMTP-type programs are available in EMTDC. Some of the major differences between EMTDC and the other programs are listed as follows:
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