compressed_air_sourcebook

本PDF是对QPSK调制方式的完美解释，非常适合初学者学习，有了本材料，QPSK对你将是小菜一碟(This PDF is the perfect QPSK modulation to explain, very suitable for beginners to learn, with this material, QPSK will be a piece of cake for you)

some experiment about modern control theory by myself

说明：  Matlab code for Getting Yokoi number It is useful tool to Mark the Yokoi number of image

说明：  这是一种对遗传算法的Matlab实现，此算法主要应用于求函数的极值。(This is a Matlab implementation of genetic algorithms, this algorithm is mainly used in extreme demand function.)

rotor dynamics toolbox

一些有助于学习dsp的形象的教程性的程序(That will help to learn dsp easily )

matlab 基础知识讲义，内容发人深省，深入浅出(matlab basic knowledge of lectures, the content of thought-provoking, and easy)

里面包含了曲线演化的两种形式，常量演化和曲率演化。(Which contains the curve evolution of two forms, the constant evolution and the evolution of curvature.)

AQM网络仿真，编写matlab的.m文件(Copyright (c) 2009-2015, Yang Xiao Copyright (c) 2009, John D Errico All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution * Neither the name of the Beijing Jiaotong University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. )

A three-phase motor rated 1 kW, 500 Vdc, 3000 rpm is fed by a six step voltage inverter. The inverter is a MOSFET bridge of the SimPowerSystems™ library. A speed regulator is used to control the DC bus voltage. The inverter gates signals are produced by decoding the Hall effect signlas of the motor. The three-phase output of the inverter are applied to the PMSM block s stator windings. The load torque applied to the machine s shaft is first set to 0 and steps to its nominal value (11 N.m) at t = 0.1 s. Two control loops are used. The inner loop synchronises the inverter gates signals with the electromotive forces. The outer loop controls the motor s speed by varying the DC bus voltage.