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  • three-phase Permanent Magnet Synchronous Motor(PMSM) velocity control DSP program

    three-phase Permanent Magnet Synchronous Motor(PMSM) velocity control DSP program

    标签: three-phase Synchronous Permanent velocity

    上传时间: 2014-06-10

    上传用户:kelimu

  • Computes the Permanent of a nonnegative integer matrix. Notes: Compile in C++, "g++ -o Permanent per

    Computes the Permanent of a nonnegative integer matrix. Notes: Compile in C++, "g++ -o Permanent Permanent.c".

    标签: Permanent nonnegative Computes Compile

    上传时间: 2013-12-23

    上传用户:zhangyi99104144

  • Axial Flux Permanent Magnet Brushless Machines 永磁无刷电动机教科书

    Axial Flux Permanent Magnet Brushless Machines 永磁无刷电动机教科书,国外大学教材,PDF格式,英文版,带目录书签

    标签: Brushless Permanent Machines Magnet

    上传时间: 2013-11-30

    上传用户:zl5712176

  • The ITU-T(Telecommunication Standardization Sector)is a Permanent organ of the International Telecom

    The ITU-T(Telecommunication Standardization Sector)is a Permanent organ of the International Telecommunication Union(ITU).The ITU-T is responsible for studying technical,operating and tariff questions and issuing Recommen- dations on them with a view to standardizing telecommunications on a worldwide basis.

    标签: Telecommunication Standardization International Permanent

    上传时间: 2014-02-20

    上传用户:sammi

  • 開平方根IP將sqroot_license.txt中的FEATURE 6AF8_0048 alterad 0000.00 Permanent uncounted 4A689178551B VENDO

    開平方根IP將sqroot_license.txt中的FEATURE 6AF8_0048 alterad 0000.00 Permanent uncounted 4A689178551B VENDOR_STRING=gl15kdhm5gUPkJD7iM82mn$$ HOSTID=ANY加入就可以使用了!

    标签: sqroot_license 4A689178551B Permanent uncounted

    上传时间: 2016-08-17

    上传用户:windwolf2000

  • Medical council of India,registration form pdf booklet for provisional and Permanent registrations.

    Medical council of India,registration form pdf booklet for provisional and Permanent registrations.

    标签: registrations registration provisional Permanent

    上传时间: 2013-12-18

    上传用户:cc1915

  • 基于BP神经网络的永磁同步电机自适应控制研究.rar

    永磁同步电机(Permanent Magnet Synchronous Motor)因功率密度大、效率高、过载能力强、控制性能优良等优点,在中小容量调速系统和高精度调速场合发展迅速。但由于永磁同步电机的磁场具有独特的交叉耦合和交叉饱和现象,且其控制系统是一个强非线性、时变和多变量系统,要实现高精度调速就需对其控制策略进行深入研究。 永磁同步电机调速系统中,位置传感器的存在使得系统成本增加、结构复杂、可靠性降低,所以永磁同步电机的无位置传感器控制成为一个新的研究热点。本文拟借助于神经网络良好的逼近能力,实现永磁同步电机的无位置传感器控制。 人工神经网络(Neural Network)可以逼近任意复杂非线性映射,具有很强的自学习自适应能力,十分适合于解决复杂的非线性控制问题。其中,BP神经网络是目前广泛应用的神经网络之一,得到了较为深入的研究,其结构简单,需要离线确定的参数少、泛化能力强、逼近精度高、实时性强,采用BP神经网络实现永磁同步电机的调速控制具有重要意义。 文中提出了基于BP神经网络的永磁同步电机自适应调速控制策略,建立了一种包含辨识网络和控制网络的双神经网络结构控制系统。辨识网络在线动态辨识系统输出并对控制网络参数进行调整,控制网络与PI控制方法相结合实现永磁同步电机自适应转速控制。仿真结果表明,该系统动态响应快、实时性较强、精度较高。 文中提出了一种基于混合训练算法的BP神经网络永磁同步电机无位置传感器控制方法。采用混沌优化和梯度下降法相结合的混合算法对BP神经网络进行离线训练后,将其用于永磁同步电机的转子位置角在线估计。结果表明,该训练算法可以有效地加快神经网络收敛速度,且估计的转子位置角误差较小、精度较高。 文中建立了以TMS320F2812芯片为核心的永磁同步电机调速控制系统,并进行了相应的软硬件设计,为实现永磁同步电机的各种控制策略奠定了实验基础。DSP控制系统为神经网络训练提供样本,为研究永磁同步电机的自适应调速控制和转子位置角估计创造了条件。

    标签: BP神经网络 永磁同步电机 自适应控制

    上传时间: 2013-07-03

    上传用户:kakuki123

  • GForge 3.0 协作开发平台 支持CVS, mailing lists, bug tracking, message boards/forums, task management, perman

    GForge 3.0 协作开发平台 支持CVS, mailing lists, bug tracking, message boards/forums, task management, Permanent file archival, 和 total web-based administration.

    标签: management tracking mailing message

    上传时间: 2013-12-14

    上传用户:变形金刚

  • TION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readil

    TION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. WARNING! Although the AD7008 features proprietary ESD protection circuitry, Permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

    标签: Electrostatic electrostatic discharge sensitive

    上传时间: 2014-01-12

    上传用户:2467478207

  • G UILLAIN-BARRéSYNDROME(GBS)is an uncommon disorder,but one whose impact is far out of proportion

    G UILLAIN-BARRéSYNDROME(GBS)is an uncommon disorder,but one whose impact is far out of proportion to its incidence.Despite a usually good prognosis,GBS is a particularly frightening and often life- altering experience for those diagnosed with the disorder.Many patients are acutely aware of the rapid loss of control of their muscular function, including vital functions such as breathing and swallowing,and fre- quently feel that they are dying.The experience is almost as unnerving for the families of affected individuals.During the acute phase of the ill- ness GBS patients experience the indignity of helplessness in addition to their fear of death or Permanent disability.Prolonged disability is com- mon and some Permanent residual effects are becoming increasingly recognized.It has been our experience in meeting patients at support groups,that individuals who have been affected by GBS have a great desire for a better understanding of the disorder,even years after the acute experience.

    标签: UILLAIN-BARR proportion SYNDROME disorder

    上传时间: 2017-07-11

    上传用户:cuibaigao