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1、學(xué)兔兔www.xuetutu.com汽車工程2012年(第34卷)第3期AutomotiveEngineering2012(Vo1.34)No.32012038混合動力汽車用混合能量存儲系統(tǒng)的設(shè)計吳志偉,張建龍,殷承良(上海交通大學(xué),汽車電子控制技術(shù)國家工程實驗室,上海200240)[摘要]針對動力電池在混合動力汽車中頻繁大功率充放電的問題,采用了電池和超級電容并用的能量存儲系統(tǒng),利用超級電容高功率特性來改善儲能系統(tǒng)的性能。本文研究了電池與超級電容直接并聯(lián)和主動并聯(lián)兩種混合能量存儲系統(tǒng),后者采用零電流轉(zhuǎn)換軟開關(guān)直流變
2、換器來連接超級電容和電池。在MatlabSimulink平臺建立零電流轉(zhuǎn)換軟開關(guān)直流變換器的動態(tài)模型、超級電容和電池模型,并在AVLCruise中進(jìn)行仿真。結(jié)果表明:直接并聯(lián)方案不能充分發(fā)揮超級電容的能力;而主動并聯(lián)方案降低了純電動工況和制動能量回收工況下電池的峰值電流,電池端電壓變化范圍縮小,能量效率比單一電池的能量存儲系統(tǒng)提高了14.92%。另外,由于采用了模糊PID控制算法,改善了動態(tài)響應(yīng)性能。關(guān)鍵詞:混合動力汽車;電池/超級電容混合能量存儲系統(tǒng);直流變換器;零電流轉(zhuǎn)換軟開關(guān);模糊PII)控制TheDesign
3、ofHybridEnergyStorageSystemforHybridElectricVehiclesWuZhiwei.ZhangJianlong&YinChengliangShanghaiJiaoTongUniversity,NationalEngineenngLaboratoryforAutomotiveElectronicControlTechnology,Shanghai200240[Abstract]Inviewoftheproblemofpowerbatteriesbeingfrequentlychar
4、gedanddischargedatlargepowerinhybridelectricvehicle,thebattery/ultra—capacitorhybridenergystoragesystem(B/UCHESS)isadopted,whichtakesadvantageofthehighpowercharacteristicsofultra-capacitortoimprovetheperformanceofstoragesys—tern.Inthispaper,twoschemesofB/UCHESS
5、arestudied:directbattery/ultra-capacitorparallelconnectionandactivebattery/ultra—capacitorparallelconnection,inwhichthelatterusesDC-DCconvertorwithzerocurrenttransi—tionsoftswitchingasinterfacetoconnectbatteryandultra-capacitor.ThedynamicmodelfortheDC—DCconvert
6、orandthemodelsforbatteryandultra—capacitoraresetupwithMatlabsimulinkandasimulationisconductedwithAVLCruise.Theresultsindicatethatthedirectparallelschemedoesn’ttakefulluseofthecapabilityofultra-capac-itor,whilewiththeactiveparallelschemethepeakcurrentofbatterylo
7、wersinpureelectricdrivingandregenerativebrakingconditions,thevariationrangeofbatteryendvoltagereduces,withanenergyefficiency14.92%higherthanthatofsolebatteryenergystoragesystem.Inaddition,itsdynamicresponseperformancealsoimprovesduetotheuseoffuzzyPIDcontrolalgo
8、rithm.Keywords:HEV;battery/ultra-capacitorhybridenergystoragesystem;DC-DCconvertor;zerocur-renttransitionsoftswitching;fuzzyPIDcontrol池的能量密度不是主要問題。在中度和強(qiáng)混混合動剛舌力汽車中,低速時采用純電動驅(qū)動