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5
说明： 目前牵引变压器差动保护原理在某些因素的影响下并不能准确地区分变压器内部故障和外部故障，可能造成保护误动或拒动，危及电气化铁道系统的安全运行。针对这一现状，建立了计及铁芯非线性特性和磁滞效应而又无需铁芯的B－H曲线数据的牵引变压器模型，提出了一种通过参数辩识理论来辩识牵引变压器绕组参数实现牵引变压器微型机保护的方法。该方法能有效地区分内部故障、外部故障和励磁涌流。仿真计算表明了该方法的正确性和可行性。(Traction transformer differential protection principle in the safe operation and can not accurately distinguish between the transformer internal faults and external faults, may be to cause protection mistaken or refuse to move, endangering the electrified railway system under the influence of certain factors. In response to this situation, taking into account the core nonlinear characteristics and hysteresis and without traction transformer core of the B-H curve data model, a the traction transformer winding identification through parameter identification theory parameters to achieve traction transformer microcomputer protection. This method can effectively distinguish internal faults, external faults and magnetizing inrush current. The simulation results show that the correctness and feasibility of the method.)
- 2012-09-13 21:57:34下载
- 积分：1
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CKDY
一个详细的程控直流、交流电源资料，详细介绍了军用高品质电源的设计方案(A detailed program-controlled DC, AC power supply information, details of the military power of high-quality design)
- 2010-01-05 15:22:16下载
- 积分：1
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pc_bus
对计算机中使用的总线比较详细的介绍和总结,希望对大家有用(On the computer bus used in a more detailed introduction and conclusion, we wish to be useful)
- 2009-01-08 16:45:33下载
- 积分：1
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bang-bieu
creat table in microsoft word
- 2012-11-25 00:55:01下载
- 积分：1
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Calibre_Rule_Writing.pdf
版图验证工具calibre的rule deck写法教程(Layout verification tool calibre the rule deck writing tutorial)
- 2013-07-24 22:20:00下载
- 积分：1
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360_ServU
全面解决360浏览器的地址栏上的小图标显示问题(On a comprehensive solution to the the 360 browser' s address bar icon display problem)
- 2012-09-25 22:52:06下载
- 积分：1
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hspice_app_manual
a good hspice material
- 2010-03-03 17:35:42下载
- 积分：1
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Dreamweaver
Dreamweaver 常用的使用技巧，掌握了这些技巧可以事半功倍！(Dreamweaver commonly used techniques to master these techniques can do more with less!)
- 2011-06-29 16:39:37下载
- 积分：1
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standardofconcretestructuredesign
本文介绍了混凝土结构在设计方面的规范和标准，希望对大家有用。(This article introduces the standard of the structure of concrete.)
- 2009-11-26 13:02:39下载
- 积分：1
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LINUX-WEB-Cluster
集群技术应用
1) 防火墙集群
2) 交换机、路由器集群
3) 服务器集群(Application of Cluster technology)
- 2012-09-23 19:33:10下载
- 积分：1
