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TroubleshootingGuide851
包含所有informatica powercenter的错误信息以及排错方法(Contains all the informatica powercenter error messages and troubleshooting techniques)
- 2013-07-22 12:37:09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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SVPWM
介绍了交流调速及其相关技术的发展现状和发展趋势，以及交流调速系统的主要控制策略。选用工业变频器用异步电机作为研究对象，利用坐标变换理论，分析了异步电机在三相静止坐标系、两相静止与旋转坐标下的电机基本数学模型及其矢量控制原理。(The present situation and development trend of AC speed control and its related technology are introduced, and the main control strategies of AC speed control system are introduced. The basic mathematical model of the motor and its vector control principle are analyzed by using the coordinate transformation theory, which is based on the three-phase stationary coordinate system, two-phase stationary and rotating coordinates.)
- 2017-05-05 11:29:58下载
- 积分：1
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qigangdain
对汽缸垫的研究测试。十分的有科技前沿性啊啊、(Cylinder pad for research and testing. There are very cutting-edge science and technology ah ah,)
- 2016-04-01 16:27:01下载
- 积分：1
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jpeg
Jpeg copression Jpeg copression Jpeg copression Jpeg copression Jpeg copression Jpeg copression Jpeg copression Jpeg copression Jpeg copression Jpeg copression
- 2017-03-20 10:15:44下载
- 积分：1
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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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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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1222122
开外网的资料，你可以看看，很容易，按图索骥(open WAP)
- 2014-08-19 16:21:03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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