阻转矩负载计算机速度调节拖动系统设计（1）沈阳航空航天大学北方科技学院毕业设计（论文）--摘要本文以阻转矩负载计算机速度调节拖动系统为研究对象，介绍了通过计算机控制来实现对电动机正反向起动、提速、减速和停车的控制。通过在绕线转子异步电动机转子电路内串联对称电阻的方法对电动机进行调速，实现了对电动机正反向提速减速的控制。应用能耗制动实现停车。在硬件的使用方面最大限度的使硬件结构达到最简，以单片机为核心建立的硬件系统为软件功能最大化提供了有力的支持。关键词：阻转矩负载；转子串电阻；停车控制AbstractThisarticletaketheanti-torqueloadingcomputerspeedregulationdraggingsystemastheobjectofstudy,introducedrealizesthroughthecomputercontroltotheelectricmotorforwardandreversestarting,theincreasedspeed,thedecelerationandtheparkingcontrol.Throughconnectsthesymmetricalresistanceinthewoundrotorasynchronousmotorrotorelectriccircuitthemethodtocarryonthevelocitymodulationtotheelectricmotor,hasrealizedthecontrolwhichdeceleratestotheelectricmotorforwardandreverseincreasedspeed.Theapplicationdynamicbrakingrealizestheparking.Maximumlimitenablesthehardwarearchitectureathardware'suseaspecttoachievemostJan,hasprovidedthepowerfulsupporttakethemonolithicintegratedcircuitasthecoreestablishment'shardwaresystemforthesoftwarefunctionmaximization.KEYWORDS:Anti-torqueloading；Rotoraddstheresistance；Controlparking目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc265679249"1绪论PAGEREF_Toc265679249\h1HYPERLINK\l"_Toc265679250"1.1课题背景PAGEREF_Toc265679250\h1HYPERLINK\l"_Toc265679251"1.2电力拖动系统发展概况PAGEREF_Toc265679251\h3HYPERLINK\l"_Toc265679252"1.3课题研究内容PAGEREF_Toc265679252\h4HYPERLINK\l"_Toc265679256"1.4本文安排PAGEREF_Toc265679256\h5HYPERLINK\l"_Toc265679257"2系统总体方案论证PAGEREF_Toc265679257\h6HYPERLINK\l"_Toc265679258"2.1阻转矩负载特性PAGEREF_Toc265679258\h6HYPERLINK\l"_Toc265679259"2.2三相异步电动机机械特性的三种表达式PAGEREF_Toc265679259\h7HYPERLINK\l"_Toc265679260"2.3三相异步电动机的固有机械特性与人为机械特性PAGEREF_Toc265679260\h10HYPERLINK\l"_Toc265679261"2.3.1固有机械特性PAGEREF_Toc265679261\h10HYPERLINK\l"_Toc265679262"2.3.2人为机械特性PAGEREF_Toc265679262\h11HYPERLINK\l"_Toc265679263"2.4三相异步电动机的各种运转状态PAGEREF_Toc265679263\h17HYPERLINK\l"_Toc265679264"2.4.1电动运行状态PAGEREF_Toc265679264\h17HYP