發(fā)布時間：2018-07-25 17:41

【摘要】：本文中采用微型燃氣輪機(下簡稱微型燃機)作為電動汽車的增程器,對其進行性能仿真和起動控制研究。首先以模塊化方法建立各組件穩(wěn)態(tài)數(shù)學模型,依據(jù)質量守恒和能量守恒原則建立增程器聯(lián)合運行條件,確定微型燃機共同工作線;接著建立起動和停車過程的動態(tài)模型,制定微型燃機控制規(guī)律,即供油量隨相對轉速的變化規(guī)律。仿真結果表明:微型燃機以設計工作轉速穩(wěn)定運行時,熱效率、燃油消耗率和渦輪前溫度均滿足設計要求;應盡可能增大回熱度,以提高微型燃機的熱效率。臺架試驗結果表明:依據(jù)仿真結果確定的供油規(guī)律、起動時序和控制系統(tǒng)能夠保證微型燃機成功起動、在設計工作點穩(wěn)定運行和安全停車。
[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】： 北京航空航天大學交通科學與工程學院;江蘇奧新新能源車輛有限公司;
【基金】：國家高技術研究發(fā)展計劃項目(2011AA11A239) 北京市自然科學基金(3122024)資助
【分類號】：U469.72

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本文編號：2144555