正弦波三相變頻電源_論文

1三相正弦波變頻電源摘要本設(shè)計分為三相SPWM信號的生成、逆變回路及其驅(qū)動和輸出的測量顯示。選擇電機控制專用DSPTMS320LF2407生成SPWM信號。逆變電路主回路采用智能功率模塊IPM。輸出測量采用電壓電流傳感器來實現(xiàn)電隔離。為加快速度，采用獨立于DSP的PIC單片機實現(xiàn)輸出的測量。關(guān)鍵詞變頻；SPWM；DSP；PIC單片機ABSTRACTTHEDESIGNISABOUTTRIPHASESINUSOIDALFREQUENCYCONVERSIONPOWERTHREEPARTSAREINCLUDEDGENERATINGTRIPHASESPWMSIGNAL,INVERTERCIRCUITANDITSDRIVECIRCUIT,OUTPUTMEASURINGANDDISPLAYDSPTMS320F2407ISUSEDASTHECONTROLLERINTHESYSTEMIPMISUSEDINTHEINVERTERMAINCIRCUITVOLTAGEANDCURRENTSENSORISUSEDINTHEMEASURINGOFOUTPUT,ITCANINSULATETHECONTROLCIRCUITCONVENIENTLYPICMICROCONTROLLERISUSEDINDEPENDENTLYTOMEASUREANDDISPLAYOUTPUTKEYWORDSFREQUENCYCONVERSION,SPWM,DSP,PICMICROCONTROLLER2一方案論證與比較11變頻電源逆變方案根據(jù)題目的要求將交流電經(jīng)整流后，經(jīng)過逆變從而產(chǎn)生三相G8503G5370G8886電G9316。而實現(xiàn)三相G8503G5370G8886變頻電G9316的G1863G19202G3324于逆變過G12255。G4557于G4579功率逆變電路G980G14336G18129采用PWMG6228G7427，為G1114實現(xiàn)G8503G5370G8886變頻電G9316，本設(shè)計采用G1114SPWMG6228G7427。實現(xiàn)SPWMG7389G1209G991G1972G12193G7053G7708。G7053G7708G980采用G16280G2029采G7691G8873。G16280G2029采G7691G8873G980G14336采用三G16294G8886G1328為G17745G8886。其G2419G10714G4613G7171用三G16294G8886G4557G8503G5370G8886G17839G15904采G7691G5483G2052G19466G7811G8886，G1889G1209G19466G7811G8886G994三G16294G8886的交G9869G7114G2063控制G5332G1863器G1226的G17902G7041，從而實現(xiàn)SPWMG8873。G7053G7708G1120采用G14270G9994采G7691G8873。G1209G8503G5370G8886為G16855制G8886，G12573G14148三G16294G8886為G17745G8886G17839G15904G8616G17751，G3324G1016G1022G8886G5430的G14270G9994交G9869G7114G2063控制G5332G1863器G1226的G17902G7041，G17837G4613G7171G14270G9994采G7691G8873。其G1260G9869G7171G6164G5483SPWMG8886G5430G7380G6521G17829G8503G5370G8886。G7053G7708三采用G14270G9994采G7691G8873，G1306G993采用計G12651的G7053G8873求G5483G17745G8886G994G16855制G8886的G14270G9994交G9869G7114G2063，而G7171G11013G17731G1226G5430成G980G1022G8503G5370G15932，G17902過G17731G1226G7609G15932的G7053G8873來G8616G17751G17745G8886G994G16855制G8886的G3835G4579，G17839而控制G14045G4497來生成SPWMG8886。G17837G12193G7053G8873G2528G7691G1867G7389G14270G9994采G7691G8873生成SPWMG8886G5430G6521G17829G8503G5370G8886的G1260G9869，G2528G7114G993G19668要G3835量的計G12651。G7053G7708的選擇G7053G7708G980G7171G980G1022G17751G17902用的G7053G7708，G7053G7708G1120G11013于計G12651G13333G10724，G993G17878用于實G7114控制。而G7053G7708三G7094G1867G7389G6521G17829G8503G5370G8886的G1260G9869G2460G18003G1825G1114G3835量的G17828G12651。G2528G7114G4557于現(xiàn)G3324的控制器來G16840，G17731G1226生成G980G1022G17751G3835的G8503G5370G15932G7171G2499G1209G1582G2052的。G6937本設(shè)計采用G7053G7708三。12逆變器件方案G7053G7708G980G2045用分立G1815G1226。G17902G5132采用G25G1022IG42G37TG1328為G5332G1863器G1226，G13464成G980G1022三相G7737G5347逆變電路G708G3926G3282G20G20G709，G9994后G1889G1582G980G3883IG42G37T的驅(qū)動電路，G2375G2499實現(xiàn)G980G1022逆變電路。DCVAVBVCV1Q2Q3Q4Q5Q6QA1A2A3A2A5A0A4A6A7A8A9A10G7053G7708G1120G2045用G19610成的智能功率模塊G708IPMG709，G4439G1881G18108G993G1177G1177G2265G6336G7737G5347逆變電路和驅(qū)動電路，G3818G3272電路G12628單，G17836G1867G7389G3822G12193G1457G6264的功能。3G7053G7708的選擇G1016G12193G7053G8873G18129G2499G1209實現(xiàn)逆變電路的功能。G1306G7053G7708G980G6164G19668G3818G3272電路G3809G7446而采用G7053G7708G1120電路G12628單，G6937采用G7053G7708G1120。G18003G1825G1114G11013于分立G1815G1226過G3822而G5353G17227過G3822的G19394題。G3698加G1114電路的G2499靠性和安全性。13測量系統(tǒng)方案選擇G7053G7708G980采用電流,電壓傳感器將線電壓線電流轉(zhuǎn)化成G17751G4579的電量，之后使用G19610成真G7389效值/直流轉(zhuǎn)換器和乘G8873器測量G7389效值和功率，使G17731G1226設(shè)計G12628單，G1867G7389G17751高的精度。G7053G7708G1120采用傳感器將線電壓線電流轉(zhuǎn)化成G17751G4579的電量后，G11013單片機PICG208F452控制G1881置ADG4557信號G17839G15904采G7691，存儲并G4557存儲的數(shù)據(jù)G17839G15904分析計G12651，G17839而G5483G2052G7389效值和功率。此G7053G8873硬G1226，G17731G1226上G18129容易實現(xiàn)，并G2528G7691G1867G7389G17751高的精度。G7053G7708的選擇G1209上G1016G1022G7053G7708功能上，精度上G18129能滿足題目要求，G1306G7053G7708G980使用的器G1226G17751為昂貴，性價G8616G993高。而G7053G7708G1120使用單片機系統(tǒng)G4557數(shù)據(jù)分析G5483G2052測量量，充分發(fā)揮器G1226的G1328用，G1867G7389G17751高的性價G8616，G6937選擇G7053G7708G1120。二方案的實現(xiàn)及模塊電路21系統(tǒng)框圖總體系統(tǒng)框G3282G3926G991G3282G6164示G708G32822G20G709A11A13A12A14A15A16A17A1122變頻電源方案實現(xiàn)221器件的選擇2211控制器的選擇G11013于變頻電G9316G19668G11013控制器完成SPWM控制，G19668要G3835量的計G12651，普G17902單片機難G1209勝任，G6937我們G3324設(shè)計中選擇DSPG1328為控制器。我們選擇TM320LF2407A，G4439G7171電機控制專用芯片，其G1881置PWM發(fā)生器G12573資G9316非G5132G17878合題目G19668要。2212逆變路電的器件選擇逆變電路核心單G1815主要采用三菱公司的智能功率模塊G708IPMG709PM30CSJ0G250。PM30CSJ0G250因其飽和壓降低、G1457G6264功能豐富、額定電壓為G2500V、額定電流為G205475A，而特別G17878用于低頻逆變系統(tǒng)。PM30CSJ0G250G1881G18108電路，G3926G991G3282G6164示G708G328222G709。A11A13A12A13A18A19A20A21A22A23A24A21A25A21A26A27A28A29PM30CSJ0G250G1881G18108設(shè)G7389門極驅(qū)動控制電路、G6937障檢測電路和G1457G6264電路，采用帶G7389電流傳感器的IG42G37T芯片。G1881置IG42G37T芯片帶G7389許G3822G17227電流傳感器G1328用的G4579單G1815，G17837些G4579單G1815的信號反饋G2052G8616G17751器上，G1209檢測IG42G37T的主電流。222變頻電源主要硬件電路設(shè)計2221主電路的設(shè)計A主電路的框架圖（圖23）A11A13A12A20A30A28A29A31A17A32A11B主電路電源整流主電路電G9316經(jīng)過G7737G5347全G8886整流后G17839G15904電容濾G8886，生成直流電，G1328為逆變電路的直流電G9316。為G1457證系統(tǒng)安全性，交流電G9316入口處串聯(lián)5AG1457險管。G991面畫出G1114主電路主電G9316輸入的整流G18108分的電路G3282G708G328224G709。5A11A13A12A33A34A35A28A29C電路工作電源設(shè)計G2528G7114設(shè)計G1114系統(tǒng)工G1328G6164G19668要的四路直流穩(wěn)壓電G9316。G991面畫出G1114其中G980路電G9316電路G708G328225G709A11A13A12A36A28A37A38A39A28A292222信號的光耦隔離DSP控制信號G994PM30CSJ0G250之間G17902過高速光耦G25NG2037G17839G15904隔離，隔離電路G3926G32822G25G6164示。A11A13A12A25A40A41A28A292223反饋電路設(shè)計G991G3282G708G328227G709為G11013電壓傳感器輸出信號反饋給DSP的反饋電路電壓輸出3G25V。電路主要G11013G980G1022滯回G8616G17751器構(gòu)成。當(dāng)輸入電壓G8616預(yù)置電壓高G7114輸出低電平，反之輸出高電平。輸出的信號送給DSP處G10714。6A42A43A44A45A46A47A48A49A50A51A52A46A5323測量系統(tǒng)方案實現(xiàn)及模塊電路231測量系統(tǒng)方案實現(xiàn)測量系統(tǒng)的設(shè)計主要為G2045用單片機系統(tǒng)，G17902過電流傳感器，電壓傳感器G4557線電壓，線電流G17839G15904轉(zhuǎn)換后，經(jīng)過G16855G10714電路送入A/D，A/D經(jīng)數(shù)模轉(zhuǎn)換后送給單片機，G4557數(shù)據(jù)G17839G15904處G10714，計G12651。計G12651后G17902過液晶屏顯示G6164測量的輸出量，并顯示出被測信號的G8886G5430。G2528G7114實G7114檢測電流G7389效值，當(dāng)電流G7389效值G3835于3G25AG7114，立G2063G17902過I/O口控制過流G1457G6264模塊切G7041主回路來實現(xiàn)過流G1457G6264。系統(tǒng)結(jié)構(gòu)框G3282G3926G991G3282G6164示G328228A54A55A56A57A58A59A60A61A62A63A64A54232測量系統(tǒng)控制器的選擇7測量系統(tǒng)的控制器選擇單片機PICG208F452，G4439G7171八位RISC指令G19610單片機，本系統(tǒng)使用系統(tǒng)G7114鐘20M。G1881置32KFLASH,G205KRAM,G1881置G200位8G17902道A/D。其強G3835的功能，和G17751高的速度G2499G1209滿足G4557信號采G19610和數(shù)據(jù)計G12651處G10714的要求。233電流檢測測量系統(tǒng)采用電流傳感器為G37LFS7系G2027中的G37LFG2000S7，G4439G7171G5224用G19681G4584效G5224的G5332G10627電流傳感器，G980G14336用于測量直流、交流及G14045G1926電流，G2419、G2115G17805回路之間高度電G13489G13548。被采G7691電流經(jīng)過電流傳感器轉(zhuǎn)換成電壓信號，我們G6164用的A/D為單片機PICG208F452G1881置的G2325位八G17902道A/D，G2454G13783電壓為5V。經(jīng)電流傳感器之后的電壓G3926G7536G5831被A/D使用，G19668要加上G16855G10714電路G1209G17810G2052A/D的使用要求。G11013G17828G6930G13464成的G16855G10714電路G3926G3282G708G32822G28G709A54A55A56A65A66A67A68A58A69A70A71A72A66A73234電壓檢測測量系統(tǒng)采用的電壓傳感器為LV28P，G4439G7171G5224用G19681G4584G2419G10714的G19393G10627G15929G1619傳感器，G1867G7389出G14406的精度和G14403G3921的線性度，低G9213G9430G12573G1260G9869。G2528電流傳感器相G2528，電壓傳感器G1075G19668要G4557其輸出信號G17839G15904G16855G10714后G6177能輸出給AD。235濾波及對單片機內(nèi)置AD的過壓保護G11013于被測信號頻率為0G713G2000HG93，G6937信號經(jīng)G16855G10714后經(jīng)過G980G19466G19471容低G17902濾G8886后，送G14279A輸入。因為AD輸入的G2454G13783電G9316為0G7135V為G19462G8502信號電壓過G3835G4557ADG17908成G11784G3363，G3324信號送G14279AD之G2081G17836要經(jīng)過5G20V穩(wěn)壓管。濾G8886及G4557AD的過壓G1457G6264G3926G3282G708G32822G200G7098A54A55A56A74A75A69A76A77A78A79A80A81A82A83A84A85A86A66A73三軟件設(shè)計31DSP主程序流程DSP產(chǎn)生SPWMG8886G5430主G12255G5219G12255G5219流G12255G3282G3926G991G3282G6164示G708G32823G20G709A54A87A56A74A81A88A89A90A91A67A92A5432SPWM波實際產(chǎn)生算法SPWMG8886的產(chǎn)生，G20330G1820存入DSP的FLASH中5G202G9869G8503G5370G15932，G16847G2474G8503G5370G15932G8611G1016G1022G9869之間的G7114間間隔G7094G2499G1927定輸出G8503G5370G8886的頻率，而G8503G5370G15932G1016G1022G9869之間G7114間間隔G11013定G7114器2G1927定。G6164G1209輸出交流電G9316的頻率G994定G7114器2的計數(shù)值NG7389G3926G991G1863系915122510NFG7083G20G709G4557于G993G2528頻率根據(jù)公G5347G7083G20G709計G12651出G8503G5370G15932中G8611G1016G9869G4557G5224的計數(shù)值N，G1328為定G7114器2的G2620G7411值，G2528G7114將G2620G7411數(shù)G17839G15904G13059加，G3324定G7114器G20G2620G7411中G7041G7114，將G13059加值G2474出G1328為G17894G3698G16294度G1571G12239，并將G7609G15932G6164G5483G8503G5370值G1328為G8616G17751值G17183給G8616G17751G4504存器。G17902過G3818G18108G6365G19202G2499G6925變N，G2375G2499G6925變輸出G8503G5370G8886頻率，G17839而實現(xiàn)變頻的功能。33測量系統(tǒng)軟件設(shè)計測量系統(tǒng)G17731G1226主G12255G5219分為G19202G11436G6207G6563，G8886G5430顯示，數(shù)據(jù)計G12651，測量顯示G1972G1022G18108分。G991G3282為測量系統(tǒng)的主流G12255G3282G708G328232G7099A93A94A95A96A97A98A99A100A101A102A103A104A105A103A93四測試儀器與測試方法41測量儀器交流G16855壓器0G97250V交流G2499G16855示G8886器RIG42OLDS50G252CA數(shù)G4395示G8886器G987用G15932勝G2045VCG287數(shù)G4395G987用G15932G17139G17745電G1947150W20G161G708G1025G8G7093G102242測試方法G3324隔離變壓器G2081加入G14270耦變壓器G16855整輸入電壓，G3324輸出G12483分別G6521入三G1022功率電G19471G708G60G6521G709模G6323G17139G17745輸入。G3324G6164G7389電G9316和控制信號G17842G6521G7092G16835G7114，G2499G1209G17839G15904G16855G16809。測G16809過G12255AG6521入IPM模塊，G6521入G14270耦變壓器G708用于G16855整數(shù)G994電壓G709，主電路輸出G6521入G1946G3803G3921的功率電G19471G708G60G6521G709。上電測G16809。G16855整G14270耦變壓器的輸入，G2528G7114用示G8886器G16278G4531輸出G8886G5430；BG7041電后G3324輸電路中G6521入電感和電容，G17839G15904濾G8886。上電測G16809，G16855整G14270耦變壓器的輸入，G2528G7114用示G8886器G16278G4531輸出G8886G5430；C輸出G6521入G17139G17745。G20330G1820，G16855G14422G14270耦變壓器使輸入電壓G3324G20G288VG97250V之間變化，測G16809輸出電壓。G9994后，使輸入為220V，G17902過G16855G14422G6365G19202來G16855G14422頻率，測G16809變頻G14551G3272。G7380后，將頻率定G332450HG93G7114，測G16809輸出G8886G5430的G3845真度；DG17902過G6925變輸出G17139G17745，測G16809輸出電流G14551G3272；1043測量數(shù)據(jù)及數(shù)據(jù)分析431功率輸出波形G7422加入濾G8886G7114輸出電壓G8886G5430G3926G991G3282G6164示G708G32824G20G709。A93A106A95A107A108A109A110A111A112A113A114A115A110A116加入濾G8886后的輸出電壓G8886G5430G3926G991G3282G6164示G708G328242G709，從G3282中G2499G1209G11487G2052G8886G5430G7092G7138顯G3845真。A93A106A95A96A117A118A109A110A119A112A113A114A115A110A116432輸入電壓198V250V，測試