【摘要】：本文中采用微型燃?xì)廨啓C(jī)(下簡(jiǎn)稱微型燃機(jī))作為電動(dòng)汽車的增程器,對(duì)其進(jìn)行性能仿真和起動(dòng)控制研究。首先以模塊化方法建立各組件穩(wěn)態(tài)數(shù)學(xué)模型,依據(jù)質(zhì)量守恒和能量守恒原則建立增程器聯(lián)合運(yùn)行條件,確定微型燃機(jī)共同工作線;接著建立起動(dòng)和停車過程的動(dòng)態(tài)模型,制定微型燃機(jī)控制規(guī)律,即供油量隨相對(duì)轉(zhuǎn)速的變化規(guī)律。仿真結(jié)果表明:微型燃機(jī)以設(shè)計(jì)工作轉(zhuǎn)速穩(wěn)定運(yùn)行時(shí),熱效率、燃油消耗率和渦輪前溫度均滿足設(shè)計(jì)要求;應(yīng)盡可能增大回?zé)岫?以提高微型燃機(jī)的熱效率。臺(tái)架試驗(yàn)結(jié)果表明:依據(jù)仿真結(jié)果確定的供油規(guī)律、起動(dòng)時(shí)序和控制系統(tǒng)能夠保證微型燃機(jī)成功起動(dòng)、在設(shè)計(jì)工作點(diǎn)穩(wěn)定運(yùn)行和安全停車。
[Abstract]:In this paper, micro gas turbine (micro gas turbine) is used as the range booster of electric vehicle, and its performance simulation and starting control are studied. Firstly, the steady state mathematical model of each component is established by modularization method, and the combined operation conditions of range booster are established according to the principles of mass conservation and energy conservation, and the common working line of micro gas turbine is determined, and the dynamic model of starting and stopping process is established. The control law of micro gas turbine is established, that is, the change of fuel supply with relative rotational speed. The simulation results show that the thermal efficiency, fuel consumption rate and turbine front temperature can meet the design requirements when the micro gas turbine operates stably at the design speed, and the heat recovery degree should be increased as much as possible in order to improve the thermal efficiency of the micro gas turbine. The results of bench test show that the starting time sequence and control system can ensure the successful start of the micro gas turbine, stable operation and safe stop at the design work point according to the fuel supply law determined by the simulation results.
【作者單位】： 北京航空航天大學(xué)交通科學(xué)與工程學(xué)院;江蘇奧新新能源車輛有限公司;
【基金】：國(guó)家高技術(shù)研究發(fā)展計(jì)劃項(xiàng)目(2011AA11A239) 北京市自然科學(xué)基金(3122024)資助
【分類號(hào)】：U469.72

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