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1、北方民族大学学士学位论文题目:直流电机PWM调速系统的DSP实现1摘要随着科学技术的不断发展,电力电子技术和计算机的不断进步,以前老的电机调速技术再也不能满足人们的需求,进步已变得不可阻挡。所以,经过一代又一代人的努力,直流电机调速已经向着全面数字化的方向发展了,而脉宽调制技术(PWM)正是控制数字化的基础之所在。近几年来,数字信号处理器(DSP)集成的硬件资源愈加丰富,直流电机调速以DSP实现受到了广泛的关注和应用,然而对于DSP在这方面的应用实至名归,它在许多领域都得到了极大地使用,诸如电气、航天、通讯、医药卫生和电
2、子等方面都有极广的使用。本文首先提出了直流电机PWM调速的控制要求,对传统方法进行了列举;然后系统地阐述了该文使用系统的组成及其数字化控制原理,从整个调速系统的关键技术角度分析了计算机与DSP相结合的直流电机PWM调速的实现;最后详细描述了系统的软件设计,设计过程运用了模块化设计。本文使用了TMS320F2812DSP,它在C2000系列中非常的突出,对它的深入学习是学习DSP原理的理想的入门芯片。本文对该芯片有非常详细的介绍,这也对我以后的学习帮助很大。关键字:直流电机、PWM、调速、DSPAbstractWithth
3、edevelopmentofscienceandtechnology,progressofpowerelectronictechnologyandcomputertechnology,beforethemotorspeedoldcan'tsatisfypeople'sneeds,progresshasalreadybecometheirresistible.So,generationaftergenerationofpeople'sefforts,theDCmotorspeedcontrolhasbecomeacompr
4、ehensivedigitaldirection,whilethepulsewidthmodulation(PWM)isthefoundationofdigitalcontrolof.Inrecentyears,digitalsignalprocessor(DSP)hardwareresourcesmoreintegratedabundance,DCmotorspeedregulationisrealizedbyDSPreceivedextensiveattentionandapplication,however,for
5、theapplicationofitsDSPinthisregard,inmanyareashavebeengreatlyused,suchaselectrical,aerospace,communications,medicalandelectronicandsoonhavetheuseofawiderangeof.ThispaperfirstproposedtocontroltheexecutivesandtheDCmotor,thetraditionalmethodsarelisted;andthensystema
6、ticallyexpoundedthecompositionandprincipleofthedigitalcontrolsystem,analysestheimplementationofPWMDCmotorspeedcontrolcomputerandDSPcombinedfromthekeytechnologypointofthespeedregulationsystem;finally,adetaileddescriptionofthesoftwaredesignsystemsoftwaredesign,whic
7、hdirectlyaffectstheimplementationofsystemdesign,socareless.Thesystemsoftwaredesignusesthemodulardesign,butamoduleisabsolutelyindependent,soitisveryconvenientforadjustmentandcallingsystemfor.Inthispaper,theuseofTMS320F2812DSP,itisintheC2000seriesisveryprominent,fo
8、rhisin-depthstudyistheentry-chiplearningDSPprincipleideal.Inthispaper,averydetailedintroductiontothechip,thisalsoformyfuturestudyofgreathelp.Keywords:DCmotor,P