股票作手回忆录读书笔记

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1、单相转三相电源变换器的设计编号本科生毕业设计（论文）题目：单相转三相电源变换器设计物联网工程学院电气工程及其自动化专业学号学生姓名指导教师摘要摘要本文介绍了一种用途广泛的单相转三相电源变换器，适用于对三相电源电压和频率有调节要求的工业场合，尤其是三相交流电动机的变压变频调速。该单相转三相电源变换器是基于DSP的数字化控制系统，文本详细介绍了其主电路设计以及采用的SPWM调压和调频的控制方法。由于传统模拟控制的单相转三相电源变换器难以满足实时、精确、可靠调压和调频等要求，本文所研究的是一种以TMS320L

2、F2407A的DSP作为核心控制器的数字式单相转三相电源变换器，并且采用PID控制策略来控制负载的各个变量。本文所研究的单相转三相电源变换器，可实现了恒电流、恒电压、恒功率控制，系统所采用的PID控制方式具有很好的动态跟踪品质和稳态精度,兼顾了静态与动态特性，具有控制精度高等优点；其液晶显示内部状态等人机交互功能，具有良好的人机界面，操作简便，使整个系统更人性化；整个系统具有集调压与调频一体的功能，可以很好的实现输出频率和电压的连续调节，具有工作安全可靠，性能良好，适应性强等优点。关键词：调压；调频；D

3、SP；SPWM；PIDIAbstractABSTRACTThispaperintroducesakindofextensiveuseofsingle-phasetothree-phasepowerconverter,suitableforindustryoccasionsthatrequireadjustablevoltageandfrequencythree-phasepowersupply,especiallyforthree-phaseACmotorwithvariablevoltageandfr

4、equencycontrol.Thesingle-phasetothree-phasepowerconverterisbasedonadigitalcontrolsystemofDSP,andthepaperintroducesitsdetaileddesignandthemaincircuitofSPWMvoltageandfrequencycontrolmethod.Traditionalanalogcontrolledsingle-phasetothree-phasepowerconverteri

5、sdifficulttomeetthereal-time,accurateandreliablemodulationdemands.Thispaperstudiesasingle-phasetothree-phasepowerconverterbasedonDSPTMS320LF2407AandthesystemusesPIDcontrolstrategytocontroldifferentvariables.Thispaperstudiedasingle-phasetothree-phasepower

6、converter,whichcanmakeaconstantcurrent,constantvoltage,constantfrequencycontrol,thesystemusingPIDcontrolmodehasagooddynamictrackingqualityandsteadyprecision,andboththestaticanddynamiccharacteristicshasgoodcontrolandhighprecision;itsLEDcanshowthestateando

7、therhuman-computerinteraction;allinall,thesystemhasagoodhuman-machineinterfaceandeasyoperationsothatthewholesystembecomemorehumane;thewholesystemhasonesetofpowersurgeandthetransferfunction,whichcanachieveagoodcontinuousoutputfrequencyandvoltageregulation

8、,withsafeandreliable,goodperformance,adaptabilityandsoon.Keywords:voltageregulation;frequencymodulation;DSP;SPWM;PIDII目录目录第1章绪论...............................................................................................