my_logic

interior permanent magnet synchronous machine speed control using pi controller

说明：  ％code2_1 for lecture 1 Simpson s rule ( Code2_1 for lecture 1 Simpson s rule)

说明：  matlab常用函数参考，比较有用，尤其是对于使用matlab还不太熟练的编程人员。(matlab common function reference, more useful, especially for the use of matlab not very skilled programmer.)

说明：  在matlab下，运用矩量法计算长直导线电容，并分析电容随导线长度，半径，分段数的变化(In matlab, Compution of a long straight wire capacitance with MOM , and analysis of capacitance with the wire length, radius, segment number of changes)

说明：  语言编码相关算法论文，用于信号处理技术。适合于研究生及研究语音编码算法的人员阅读(Language codes related papers algorithm for signal processing technology. Research for graduate students and staff read the speech coding algorithms)

双馈风力发电机Simulink仿真模型，内部计算步骤清晰，已经做修改可直接运行。(Simulink model of doubly fed induction generator, the internal calculation steps clear, has been modified can be run directly.)

windfarm turbine model

共振解调法诊断轴承损伤类故障的原理概述如下:当轴承某一元件表面出现局部损伤时，在受载运行过程中要撞击与之相互作用的其它元件表面，产生冲击脉冲力，由于冲击脉冲力的频带很宽，必然包含轴承外圈、传感器甚至附加的谐振器等的固有频率而激起这个测振系统的高频固有振动。根据实际情况可以选择某一高频固有振动作为研究对象，通过中心频率等于该固有频率的带通滤波器把该固有振动分离出来。然后进行包络解调，去除高频衰减振动的频率成分，得到只包含故障特征信息的低频包络信号，对这一包络信号进行频谱分析便可以容易地诊断出轴承的故障来。(The principle of resonance demodulation method in the diagnosis of bearing damage such failure overview is as follows: when the bearing surface of a local damage, in the process of loading operation to hit with other elements of the interaction of surface, impact pulse power, due to the impact pulse frequency band is very wide, inevitably contains the bearing outer ring, sensors and even additional resonator and stir up the natural frequency of the vibration system of the high frequency vibration mode.A high frequency vibration mode can be selected according to actual situation as the research object, through the center frequency is equal to the natural frequency of the bandpass filter to separate the natural vibration.Then envelope demodulation, frequency components to remove the high frequency vibration attenuation, get only includes fault feature information of low frequency envelope signal, the envelope signal spectrum analysis can be easily diagnosed bearing failure.)

one paper about the wind turbines in psat too matlab

此代码是卫星上行链路和下行链路预算分析,程序为matlab程序。(my english is poor.)