摘要科学技术在不断推进与完善，尤其是在电子电路方面得到了长足性发展，人们不断地进行着各种创新发明。与此同时，PWM控制技术开始逐渐崭露头角并占据重要地位。在当今生活中，万物都联系在一起，PWM技术与变流技术也一样。两者结合再加上人们不断地研究探索，目前PWM技术已经在社会生产中起到了至关重要的作用。本文将对PWM在变流技术中的应用做出浅析并提出本人的薄见。本文首先将对PWM在变流技术中的主要应用进行阐述解释，以便对电力电子技术实现更好的掌握。其次将介绍几种主流的PWM的控制方法，并对各种方法的基本原理进行解释与分析，以达到使读者更好的了解PWM的目的。最后本文将举出三种实际中常见的PWM在变流技术中的应用的实例，目的是更好的对PWM的工作方式和不同的PWM应用方式进行分析和了解掌握。关键词：PWM；变流技术；谐振软开关；PWM调速1AbstractScienceandtechnologyareconstantlyevolvingandimproving,particularlyintheareaofelectroniccircuits,andpeopleareconstantlyimplementingavarietyofinnovativeinventions.Atthesametime,thePWMcontroltechnologyhasbeguntoemergeandoccupyanimportantplace.Inmodernlife,everythingisconnectedandthePWMtechnologyisidenticaltothetransformationtechnology.Combiningthesetwofactorsandtheongoingresearchandstudyofpeople,modernPWMtechnologiesplayavitalroleinsocialproduction.Inthisarticle,wewillanalyzetheuseofPWMinconvertertechnologyandexpressmydelicateopinion.ThisarticlefirstexplainsthebasicuseofPWMtechnologyinconversiontechnologytobetterunderstandpowerelectronicstechnology.Secondly,severalbasicPWMcontrolmethodswillbepresented,andthebasicprinciplesofthedifferentmethodswillbeexplainedandanalyzedtoachieveabetterunderstandingofPWM.Finally,thisarticlepresentsthreepracticalexamplesoftheuseofPWMtechnologyinconversiontechnology,inordertobetteranalyzeandunderstandtheoperatingmodeofPWMtechnologyandvariousmethodsofapplicationofPWMtechnology.Keywords:PWM;Convertertechnology;Resonantsoftswitch;PWMspeedregulation目录前言................................................................................................................................11.绪论...............................................................................................................................21.1PWM的介绍........................................................................................................21.1.1PWM的定义及功能.................................................................................21.1.2PWM的基本原理.....................................................................................21.2PWM目前的应用领域及发展趋势....................................................................31.2.1PWM的应用领域.....................................................................................31.2.2PWM的发展趋势及优缺点.....................................................................41.3变流技术的介绍.................................................................................................51.3.1变流技术的定义......................................................................................51.3.2变流技术的分类......................................................................................51.3.3变流技术在电力系统中的应用...............................................................62.PWM的控制方法..........................................................................................................72.1PWM的几种控制方法及其应用的领域.............................................................
