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Hybridoptimizationmodelofproductconcepts
这是一个不错的小论文,希望对你们有用,同时有利于我们交流.(this is a very good pdf paper,please you use.)
- 2010-07-01 11:03:29下载
- 积分:1
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dirct-torque-sensorless
说明: 异步电机的精确控制和速度辨识是交流传动系统中重要问题。在该仿真系统中,电机转速采用易于检测的电机定子电压和电流得到转速MRAS辨识算法来估算。由于速度辨识算法中电压模型的纯积分环节会引起的误差积累和漂移问题,采用改进积分型转子磁链估算模型来解决。(The precise control and the speed identification of AC motor are the very important issues on AC drive system.In this system, induction motor is controlled by the direct torque control, stator flux is estimated by u-n model observer that is effective in the full range of speed, motor speed is estimated by MRAS speed identification algorithm that is depended on the voltage and the current of motor stator easily detected. The modified integral rotor flux estimation model is used to solve the problem that the normal model can be affected by the error accumulation and drift of integral calculation in the voltage model of conventional speed identification algorithm. )
- 2011-03-04 18:39:11下载
- 积分:1
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3inverter180
Three phase inverter using thyristor power electronic switch
- 2013-01-31 13:03:02下载
- 积分:1
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Wave-in-Viscoelastic-Media
硕士论文:粘弹性介质地震波数值模拟。
震波在实际地层介质中传播与在理想的完全弹性介质中传播有许多不同之处,地层的粘滞性会损耗地震波能量,使其振幅衰减并且视频率逐渐降低。地震波的这种能量
衰减和频散,使得不能直接从地震数据上得到准确的地下信息和分辨率更高的图像。实
际的地层更接近于粘弹性介质,本论文主要探讨和研究了粘弹性介质中地震波传播的数
值模拟方法及其衰减规律。
(Thesis: viscoelastic medium seismic wave numerical simulation. The shock wave propagation in the formation medium and ideal perfectly elastic medium spread there are many differences, the viscosity of the strata will loss seismic energy, so that the amplitude attenuation and video rate gradually reduce. This energy of the seismic wave attenuation and dispersion makes accurate subsurface information and higher resolution images can not be obtained directly from the seismic data. Actual formation closer viscoelastic medium, this thesis is to explore and study the numerical simulation of seismic wave propagation in viscoelastic media and its decay law.)
- 2013-03-01 23:10:56下载
- 积分:1
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140198-11
KEB COMBIVERT
The MS-Repeater (Part. No.: 00.F4.072-2008) is for connection and
amplification of incremental encoder signals during master-slaveoperation.
- 2014-12-30 16:08:27下载
- 积分:1
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Pid-fun-in-matlab
pid fun in matlab codes
- 2015-02-08 02:33:33下载
- 积分:1
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xb
小波图像二次压缩,MATLAB简单编程,改下路径即可用(Wavelet image compression)
- 2013-05-13 19:19:06下载
- 积分:1
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ROC
receiver operating characteristics
- 2010-07-11 12:52:10下载
- 积分:1
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paixu
对各个特征量的大小进行排序,并显示相应的序号(The size of each characteristic quantity to sort and display the corresponding number)
- 2010-05-19 12:27:52下载
- 积分:1
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MATLAB-7-Source-file
matlab 7 教程源文件 没有书,只有源文件(matlab )
- 2012-04-19 22:53:33下载
- 积分:1