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SVPWM_VSI
SVPWM是近年发展的一种比较新颖的控制方法,是由三相功率逆变器的六个功率开关元件组成的特定开关模式产生的脉宽调制波,能够使输出电流波形尽可能接近于理想的正弦波形。空间电压矢量PWM与传统的正弦PWM不同,它是从三相输出电压的整体效果出发,着眼于如何使电机获得理想圆形磁链轨迹。SVPWM技术与SPWM相比较,绕组电流波形的谐波成分小,使得电机转矩脉动降低,旋转磁场更逼近圆形,而且使直流母线电压的利用率有了很大提高,且更易于实现数字化。(SVPWM is a novel control method developed in recent years. It is a pulse width modulation wave generated by a specific switching mode consisting of six power switching elements of three-phase power inverters, which can make the output current waveform as close as possible to the ideal sinusoidal waveform. Space voltage vector PWM is different from traditional sinusoidal PWM. It is based on the overall effect of three-phase output voltage, focusing on how to obtain the ideal circular flux trajectory of the motor. Compared with SPWM, the harmonic component of winding current waveform is smaller, which reduces the torque ripple of motor, makes the rotating magnetic field more close to the circle, and improves the utilization ratio of DC bus voltage greatly, and makes it easier to realize digitization.)
- 2019-01-30 10:57:56下载
- 积分:1
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APC
自适应陷波控制Simulink程序。可用于一定频率范围内振动隔离。可运行(Adaptive Notch control of Simulink program. A certain frequency range can be used for vibration isolation. Can run)
- 2010-10-14 16:46:29下载
- 积分:1
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simplemulti-kernel-svm
经典的多核学习工具箱,功能强大,内容全面(The classic multi-core learning toolbox, powerful, comprehensive)
- 2013-07-27 10:32:55下载
- 积分:1
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kalman
Carrier-phase synchronization can be approached in a
general manner by estimating the multiplicative distortion (MD) to which
a baseband received signal in an RF or coherent optical transmission
system is subjected. This paper presents a unified modeling and
estimation of the MD in finite-alphabet digital communication systems. A
simple form of MD is the camer phase exp GO) which has to be estimated
and compensated for in a coherent receiver. A more general case with
fading must, however, allow for amplitude as well as phase variations of
the MD.
We assume a state-variable model for the MD and generally obtain a
nonlinear estimation problem with additional randomly-varying system
parameters such as received signal power, frequency offset, and Doppler
spread. An extended Kalman filter is then applied as a near-optimal
solution to the adaptive MD and channel parameter estimation problem.
Examples are given to show the use and some advantages of this scheme.
- 2007-09-18 21:06:09下载
- 积分:1
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into
This book is an introduction to two subjects:Matlaband numerical computing.
This first chapter introducesMatlabby presenting several programs that inves-
tigate elementary, but interesting, mathematical problems. If you already have
some experience programming in another language, we hope that you can see how
Matlabworks by simply studying these programs.
- 2013-11-11 21:54:29下载
- 积分:1
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多尺度熵特征
说明: 多尺度特征熵,用于机械振动信号特征提取和故障诊断等方面(Multi-scale feature entropy for mechanical vibration signal feature extraction and fault diagnosis)
- 2019-07-05 09:26:05下载
- 积分:1
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Multiclass_Regularized_LDA-master
说明: Multiclass Regularized LDA(Multicalss Regularized LDA)
- 2020-10-19 14:17:54下载
- 积分:1
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GAstoolbox
由西安电子可以大学雷英杰老师编写的第一本关于遗传算法matlab工具箱的专著,使用的是英国谢菲尔德大学的版本工具箱,很有参考价值,需要的快下载。(From Xidian University, LEI Ying-jie teachers can be prepared in the first book on genetic algorithm matlab toolbox monographs, using a version of the University of Sheffield toolbox, a good reference value, the need for faster download.)
- 2007-08-07 16:13:30下载
- 积分:1
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matlab
此仿真程序是目前论坛里面最完整的仿真源码(This simulation program is a forum for the most complete simulation inside source)
- 2007-11-13 09:19:46下载
- 积分:1
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xinsanwei01_xiyinzi
混沌系统的吸引子,很简单,初步学习可以看看(Attractor of the chaotic system is very simple, the initial learning can take a look at)
- 2013-01-08 21:26:41下载
- 积分:1