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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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SDSD
This is foos This is foos(This is foos)
- 2013-08-19 05:42:27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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C-program-for-space-application
C语言编程的航天规范，GJB5369-2005航天型号软件C语言安全子集(C program guide for sapce application)
- 2017-05-09 15:49:51下载
- 积分：1
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新建文件夹
用于计算振动信号的频域特性，可获得结构的振型参与系数、各阶固有频率、阻尼等(Frequency domain characteristics of vibration signals)
- 2021-03-06 15:49:30下载
- 积分：1
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fuel-cell-DC-DC-converter
PEMFC混合动力系统的DCDC变换器设计，包括建模和控制方法。(PEMFC hybrid system DCDC converter design, modeling and control methods.)
- 2020-12-21 15:49:10下载
- 积分：1
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map
绘制发动机map图，教你如何绘制发动机map图，快速掌握，提升绩效(Draw engine map from scratch until solution)
- 2021-04-19 18:28:51下载
- 积分：1
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CMOS
cmos模拟电路设计，很经典的一本教材的电子版，大家分享(cmos analog circuit design, it is a textbook classic of the electronic version, we share)
- 2009-06-28 22:13:05下载
- 积分：1
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11
说明： 深入理解计算机系统（原书第2版）.pdf(In-depth understanding of computer systems (the original book version 2). Pdf)
- 2011-06-27 10:36:45下载
- 积分：1
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103DOC
说明： 从南瑞继保某现场技术人员电脑中偷搞的,关于103规约通讯的技术要点.别被南瑞的发现了,阿门!(err)
- 2008-11-13 21:25:48下载
- 积分：1
