Desk435top

针对永磁同步电机常规直接转矩控制系统涉及到的问题,例如磁链的准确观测、定子电阻的变化、电压矢量开关表的改进以及滞环控制器的改进等等,本文都作了详细的分析,并提出了改进方案。为了提高系统的性能,本文将空间矢量调制的方法引入了常规直接转矩控制中,并在此基础上,对永磁同步电机无速度传感器问题作了详细的分析,总结了国内外的研究热点,提出了采用转子磁链矢量为基础的永磁同步电机直接转矩控制速度估计方法。仿真结果表明,该方案具有很好的动、静态特性。(Firstly, the paper analyzes the principle of direct torque control of permanent magnet synchronous motor and elaborates the impact of space voltage vector of the stator flux and the electromagnetic torque.Secondly, the paper introduces direct torque control of permanent magnet synchronous motor SVPWM technology.Under the same hardware conditions,the system can obtain More continuous voltage space vector by taking advantage of SVPWM.The simulation results show the program not only keeps the direct torque control fast dynamic response, but also reduce the motor torque ripple.)

butterworth滤波器，可实现高通低通滤波(butterworth filter, low pass filter high-pass)

DCT域音频水印算法代码，用于音频媒体版权的保护(Audio Watermarking Algorithm for DCT-domain code)

Matlab辅助激光光学分析与应用，多说无益，用则拿之(Matlab-assisted laser optics analysis and applications, more than just words to get the use of the)

matlab整数分解 自己写的 完全自写(matlab integer factorization write your own completely self-written)

人工智能，解决复杂问题。比如说，解决最优下料问题，解决最优规划问题等。(Artificial intelligence to solve complex problems. For example, the optimal solution under the material and solve optimal planning problems.)

正弦插值函数源码及应用，成像方面的可以参考。。。(Sine interpolation function source code and applications, imaging can refer. . .)

在Matlab/Simulink中搭建的步进电机、单相异步电机、直流无刷电机三种驱动系统的仿真模型，来对比仿真其速度响应动态性能(In Matlab/Simulink to build the step into the motor, single-phase asynchronous motor, DC brushless motor drive system simulation model, and compared the simulation speed of dynamic response performance of a)

说明：  在前面1维，2维的基础上继续推出3维的FDTD程序，可以帮助解决复杂的3维电磁散射问题，适用范围更广。这个程序给出计算要求的参数即可运行。(in front of one-dimensional, two-dimensional basis continue to offer three-dimensional FDTD procedures, which can help to solve the complex three-dimensional electromagnetic scattering problems, which have wider applicability. This procedure gives the parameters computing requirements can run.)

Dtc-St structure in matlab simulink work on