双向-DCDC-变换器的应用

华中科技大学硕士学位论文数字控制双向全桥DC/DC变换器的研究姓名：牛金红申请学位级别：硕士专业：电力电子与电力传动指导教师：康勇20060429IDC/DC(Bi-directionalDC/DCConverter,BDC)--DC/DCDC/DCDC/DCDC/DCDC/DCDC/DCDC/DCBoostDC/DCDC/DCPID200WDC/DCPIDDC/DCPIDIIAbstractBi-directionalDC/DCConverter(BDC)isthetwo-quadrantoperatingDC/DCconverter.ThepowercanflowineitherdirectionbetweentwoDCsources.BDCperformsastwoDC/DCconverters.Withthedevelopmentofthescienceandproduction,BDCisincreasinglyusedinapplicationssuchasDCuninterruptiblepowersupply,aerospacepowersupply,andauxiliarypowersupplyofelectricvehicles,etc.TheemployingofBDCcanreducethesize,theweight,andthecostofpowersystem.ThisthesisisconcentratedontheresearchofthedigitalcontrolledBi-directional,isolated,full-bridgeDC/DCConverter.Thisconverterisusallyusedinhighpowerapplications.Inchapterone,theconception,creationofthebi-directionalDC/DCconverterarepresented,andthebi-directional,isolated,full-bridgeDC/DCconverterisproposed.Theconverterisoperatedwithdualfull-bridgesplacedoneachsideoftheisolatedtransformer.Thehighvoltage(HV)sideisconnectedtothedcgeneratorsupply,andthelowvoltage(LV)sideisconnectedtothebattery.Inchaptertwo,theoperatingprincipleofthebi-directionalfull-bridgeDC/DCconverterisintroduced.WhenpowerflowsfromtheHV-sidetotheLV-side,theconverterworksinbuck/chargemodetochargetheLV-sidebattery,andtheswitchingsignalonHV-sideisturnedon,onLV-sideislocked;otherwise,itworksinboost/dischargemodetopowertheHV-sideload,andtheswitchingsignalonLV-sideisturnedon,onHV-sideislocked.Chargemodeworksasisolatedfull-bridgeDC/DCconverter,andthedischargemodeworksasisolatedfull-bridgeboostconverter.Chaptertwoalsoproposedsomeproblemsandthesolvedmethods,suchasthelossofdutyratio,voltagespike,startupcontrolling,etc.Inchapterthree,anextendedstate-spaceaveragedmodelisdevelopedtobuildthesmallsignalmodeloftheconverterinbothdirectionsofpowerflow.APIDcontrollerisdesignedtomakethesystemhasasatisfactorytransientresponseagainstthedisturbance.Finally,a200Wprototypehasbeenbuilt.Thedesignofhardwareandsoftware,realizationofdigitalPIDcontroller,etcareintroducedindetail.Theexperimentalresultsoftheconverterareproposedtoconfirmthetheoryanalysis.Keywords:Bi-directionalFull-bridgeDC/DCConverterChargeModeDischargeModeControllerModelDigitalPIDController_____111.1DC/DC(DC)0f=(AC)0f≠4[1~3]1.11.1DC/DCDC/AC0f=0f≠UPSAC/DC0f≠0f=AC/AC1f2fDC/DCDC/DC1.1.1DC/DCDC/DC1.21.21V2V1V2VDCACDCAC21V2V2V1VDC/DCDC/DC1.3(a)DC/DC1V2VDC/DC2V1VDC/DC[2][4~5]1.2DC/DC1.3DC/DCDC/DC[2][4~5]1.3(b)DC/DC1V2V1I2I1V2VDC/DC1VDC/DC1V2V1I2I20I10IDC/DC1V2V1I2IDC/DCDC/DC1V2V1I2I120,0II120,0II120,0II120,0II(a)-DC/DC(b)DC/DC32V1I2I2V1V1I2I1.1.2DC/DC1.4DC/DC1.5Buck-BoostDC/DCDC/DC1.4(a)[5]1.5(a)BuckDC/DC1.5(b)BoostDC/DCDC/DC1.4(b)1Q1Q2D2D2Q1D(a)DC/DC(b)DC/DC2V1V2V1V2D1Q1Q2V1V1D1D2Q2Q2DLLLBuckBoost(a)BuckDC/DC(b)BoostDC/DC(c)Buck-BoostDC/DC41.5(c)Buck-BoostDC/DC2Q1QPWMBuck1V2V1Q2QPWMBoost2V1V(Buck/Boost)(Cuk)(Zeta)(Sepic)(Full-Bridge)BiBuck/BoostBiCukBiSepic-ZetaBiFull-Bridge[2]-DC/DCDC/DCDC/DC[4~5]DC/DC1.1.3DC/DCDC/DCDC/DCDC/DC[2][5]DC/DCBiBuck-BoostBiBuck/BoostBiCukBiSepic-ZetaIIIIDC/DC(Biflyback)DC/DC(Biforward)DC/DC(Bihalfbridge)DC/DC(Bipush-pull)DC/DC(Bifullbridge)DC/DCDC/DCDC/DC[2]51.1.4DC/DCBuck-BoostDC/DCBuck-BoostDC/DC[5~8]1.6(a)Buck-BoostDC/DC//1.6(b)//BuckBoostBoost[6]Buck-BoostDC/DC-DC/DC1.6DC/DC1.2DC/DCDC-UPS1.2.1DC-UPSDC-UPS[2][4~5]1.7//1V2V(a)DC/DCCL1V2V1Q2Q3Q4Q5Q6Q7Q8Q1D2D3D4D5D6D7D8D(b)DC/DC1rL2rLT1N2N:1n6DC-UPSAC/DCBADC/DCBiDC/DCAC/DCBiDC/DCBABA1.7DC-UPSDC/DCBiDC/DCDC/DCDC/DCDC/DCAC-UPS[1][9]1.2.2[2][10~11]:DC/DC1.8AC/DCLOADDC/DCBA7DC/DC[12~14]12V288VDC/DC288V1.5kWDC/DCDC/DCDC/DC1.8DC/DC[2][15]1.3DC/DC1.3.12080Buck/BoostDC/DC1994F.Caricchi20kW(C.C.Chan)1994FelixA.HimmdlstossPESC1994[16]6DC/DC12V280V12V84Buck-BoostBuck/BoostCukSpepic-Zeta[2][2][15~17][2][10~16][10~20]1.91L[2][11][21~26][1~4][7][10][27~32]DC/DCDC/DC1.9DC/DC1.3.2[1~2]MTBF1V±2V±1L9DC/DCDC/DC1.41.4.1DC/DCDC/DCDC/DC[2][4~20]DC/DCDC/DC8DC/DCDC/DC101.4.2-DC/DCDC/DCDC/DCDC/DCDC/DCBuck-BoostDC/DC-PIDDC/DCPID112DC/DC2.1DC/DC[1][33]2.2DC/DC2.1DC/DC2.2.1DC/DC2.12.1/[2]2.11R1N2N12:nNN=1rL2rL1bC2bCfLV2D1Tn:1Lr1C1D3C3D2C2D4C4N1N2Q1Q2Q3Q4V1Cb1D5Lr2C5D7C7D6C6D8C8Q5Q6Q7Q8Cb2K11RfCfL12fC1V1K1V1R2V1V1K2V1R14QQ∼PWM58QQ∼58DD∼58QQ∼fL5Q8Q6Q7Q14QQ∼14DD∼2.2.22.2.2.11K1V1R1RfC1VfC1RfC2.2(a)[1][3-4][1~3]2.2(a)1bC1rL2.2.2.2[2~3]ZVS13[1~2]18002.2(b)1Q2Q3Q4Q1Q2Q3Q4Q2.2(a)14QQ∼14DD∼14CC∼14CC∼14CC∼1rL(a)(b)Q1Q2Q3Q4Q4Q1vAB00t1t0t2t3t4t5t6t7t8t9t10t11t12t13ipvCDV1V1/nV1I1I2IpQ1Q4D5D8onC1C2Q4D5D8onD2Q4D5D8onD2C3C4D5D8onD2D3D5D6D7D8onQ2Q3D5D6D7D8onQ2Q3D6D7onI3-I5IpdtdtTtϕD1Tn:1LfLr1C1D3C3D2C2D4C4D5D7D6D8N1N2Q1Q2Q3Q4V1Cb1ABCDV214(c)2.2DC/DC2.2.2.32.2(a)(1)C3Q3+-V1Q2C1Q1C3Q3+-V1Q2C1Q1D2C4Q4D2Q3+-V1Q2C1Q1D2D3C4Q4+-V1C1Q1C4Q42[t1~t2]3[t2~t3]4[t3~t4]5[t4~t5]6[t5~t6]C3Q3C2+-V1Q2C1Q1ip1[t0~t1]+-V1C1Q1C4Q4ipipipipipQ4Q4Q3Q3Q2Q215(2)(3)12leadCCC==34lagCCC==(4)fL21/frLLnnILf2.2(b)[1~3][33]122.2(c)61[]01tt∼0tt=1Q1rLppiI=21rfLLnL=+pipi1Q1C2C1C1Q2C1tt=1C1V2C1V0ABCDVV==2D2QZVS5D8D0101ttt=∼0111112101220PleadtICCpCCVVVidtt∆=−∆===∫0112/leadPtCVI=(2-1)2D2Q1Q2Q()01dleadtt()12/dleadl