汽車用永磁發(fā)電機(jī)雙電壓系統(tǒng)的研究

1、西南大學(xué)碩士學(xué)位論文汽車用永磁發(fā)電機(jī)雙電壓系統(tǒng)的研究姓名：王金磊申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：農(nóng)業(yè)機(jī)械化工程指導(dǎo)教師：劉峰20090501兩南大學(xué)碩學(xué)位論文ABSTRACTkrecentyears，withtheincreaseofvehideload。therequireofgeneratoroutputpowerincreasetoo。whichledtoissuessuchastensioniIltheengineroomsupplyc

2、urrentexcessiveTherefore，thereweretwotrendsinthedevelopmentofvehicleelectricalsystem：First，theuseofgreaterpowermassratiogenerator；secondistoimprovethevoltageofvehicleelectricalsystem111ispaperpresentsadualvoltage(42V，14V

3、)hybridpowersupplysystemofpermanentmagnetgeneratorPermanentmagnetgeneratorhashighpowerII腳sratiohi【ghefficiencyinthesameoutputpowerthepermanentmagnetgeneratorcallreducethesizeof30％50％comparetoexcitedgeneratorHybridpowersu

4、pplysystemisabletomeettherequirementofhighpowerload，andcanbeusedasthetransitionto42Vaswell叢tomaximizetheuseofpermanentmagnetgeneratorcapacityAimingatcharacteristicthattheoutputvoltageofpermanentmagnetgeneratorchangeswith

5、thespeedandload，toachieveconstantoutputcontrol；thecompatibilityproblembetween42Vand14Vinhybridpowersupplysystem，whicharestudiedinthispaper11屺constantpressurecontrolsystemdevelopedcontainsthatthecontrolmodule：asinglechipm

6、icrocomputerasthecore，controllablerectifiermodule，phasedetectionmodule，SCRdrivermodule，DC仍Cmodule，feedbackcircuitmoduleInordertomakethegoodstaticanddynamicperformance，theautomaticcontroltechnologyofmodemsystemsandadvance

7、dcontrolalgorithmsareusedinthisstudyEspeciallyforthetransientdisturbanceofloadfactorindual—voltagesystemincrementalPIDcontrolalgorithmisadoptedtooptimizethecontrolprocess，thespeedofdynamicresponserelyingonpowerfulsinglec

8、hipcomputingspeedisincreased1ktwooutputvoltageofthesystemcanbecontrolledstablyandquicklybothinsteadystateanddynamicstateInthisstudy，thedataiscollectedthroughthedataacquisitioncardwhenthesystemisinthecourseofmutationloadt

9、ransientprocess，thevaryingvoltagewaveformisdisplayedonPCinreal—timebylabviewsofhvare，whichprovideagreatdealofconvenienceforoptimizingthecontrolprocessPlentifultestandresearch011thedualvoltageoutputcontrolsystemshowsthat：

10、ifadvancedcontroltechnologyandcontrolalgorithmsareusedinthehybridpowersupplysystemofpermanentmagnetgenerator，goodresultsCallbcreceivedThesteadystatevoltageregulationislessthanl％；thetransientvoltageregulationis2738％一11319

11、％；thestabilizationtimeis165ms～331ms，Visibly，thesteadystatevoltageregulation、thetransientvoltageregulation、thestabilizationtimeandothermajorperformanceindicatorsofdual—voltagehybridpowersupplysysteminpermanentmagnetgenera