電動(dòng)汽車復(fù)合電源系統(tǒng)仿真研究
作者:衣紅明 馬鳳英 上傳時(shí)間:2013/4/10 19:49:51
摘要:當(dāng)前,電動(dòng)汽車用蓄電池的比能量和比功率還不能達(dá)到理想的要求,將超級(jí)電容引入到電動(dòng)汽車的儲(chǔ)能系統(tǒng)中,構(gòu)建超級(jí)電容—蓄電池復(fù)合電源系統(tǒng),利用超級(jí)電容高功率密度特性彌補(bǔ)蓄電池的不足。綜合考慮運(yùn)用兩種儲(chǔ)能系統(tǒng)的優(yōu)缺點(diǎn),解決了電動(dòng)汽車?yán)m(xù)駛里程與加速爬坡性能之間的矛盾。在MATLAB/Simulink 環(huán)境下對(duì)復(fù)合電源系統(tǒng)中重要模塊進(jìn)行仿真,測(cè)試結(jié)果顯示,采用超級(jí)電容—蓄電池的復(fù)合電源系統(tǒng)能發(fā)揮其高能量密度和高功率密度特性,從而提高車輛的動(dòng)力性能和能量利用率。
敘詞:復(fù)合電源,超級(jí)電容,能量管理,DC/DC,變換器
Abstract:At present, the electric car battery specific energy and specific power can not achieve the ideal requirements. In this study, ultracapacitor was applied to the energy storage system in battery electric vehicle to form a multiples energy supply system of ultra capacitorand battery to make use of high power density characteristics of ultra capacitor to overcome the battery deficiency, Considering theadvantages and disadvantages of the two energy storage system, resolve the contradictions among Electric Vehicle mileage, accelerationand climbing performance. The simulation results show that the ultra capacitor-battery composite power system can play a high energydensity and high power density characteristics, thereby the vehicles dynamic performance and energy utilization can be enhanced.
Keyword:Compound power supply, Energy management, Ultra capacitor, DC/DC Converter
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