600kwIGBT串联谐振式节能中频电炉主电路的设计.doc

摘要就目前来说，中频感应加热的加热速度快并且控制起来十分方便，已经在诸多行业中得到了广泛的应用。本文对600kwIGBT串联谐振式节能中频电炉主电路系统进行了设计，主要工作如下：一．高压10kV进线开关柜的设计，高压10kV系统为小电流接地系统，设计过电压和过电流保护，设计电压、电流和电能计量。二．设计整流电路、滤波电路以及逆变电路，说明其原理。三．说明元件工作原理和电路设计原理及依据，说明降低谐波和节能原理。本设计阐述了串联谐振中频感应电炉的主电路整体结构，并且给予了基本电路的理论分析，推导了主电路的计算公式，阐述了经过整流桥和谐振负载改造后优点，完成了逆变电路、整流电路以及电抗器的设计。目前为止，串联谐振中频电炉仍具有大量的使用空间，使得该课题具有其现实意义。关键词：感应加热；串联谐振；晶闸管；逆变；整流AbstractFornow,therateofheatingofthemediumfrequencyinductionheating,fastandcontrolisveryconvenient,hasbeenwidelyusedinmanyindustries.Thisarticle600KwIGBTseriesresonantenergy-savingintermediatefrequencyelectricfurnacemaincircuitsystemdesign,themainworkisasfollows:One.Thedesignofhighvoltage10KVlineswitchgear,highvoltage10KVsystemforsmallcurrentgroundingsystem,thedesignofovervoltageandovercurrentprotection,designvoltage,currentandpowermeasurement.Two.Thedesignphaseintothe10KVsixlinerectifiertransformerwiring,selectionoftheratedvoltageandthevoltagedrop,lowpressureoutletovervoltageandovercurrentprotection,indicatingthatreducingtheharmonicprinciple.Thire.Descriptionofthecomponentsworkingprincipleandcircuitdesignprinciplesandbasisofthelowerharmonicsandenergyconservationprinciple.Thedesigndescribedtheoverallstructureofthemaincircuit,theseriesresonantmediumfrequencyinductionfurnaceandgiveatheoreticalanalysisofthebasiccircuit,themaincircuitisderivedformulaontheadvantagesofthetransformationafterthebridgerectifierandtheresonantloadinvertercircuitiscompleted,designoftherectifiercircuit,reactor,andthelineinductance.Sofar,theseriesresonantintermediatefrequencyelectricfurnacestillhasalotofuseofspace,thesubjecthasitspracticalsignificance.Keywords:inductionheating;seriesresonance;thyristor,inverter;rectifier目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc326914197"摘要PAGEREF_Toc326914197