一種新型船用燃料電池混合動(dòng)力系統(tǒng)的建模
發(fā)布時(shí)間:2018-06-16 10:26
本文選題:船舶工程 + 燃料電池; 參考:《中國(guó)航!2016年01期
【摘要】:固體氧化物燃料電池(Solid Oxide Fuel Cell,SOFC)與微型燃?xì)廨啓C(jī)(Micro Gas Turbine,MGT)相結(jié)合的混合動(dòng)力系統(tǒng)是近年來(lái)開發(fā)的一種很有發(fā)展前景的船舶動(dòng)力系統(tǒng),可實(shí)現(xiàn)高效(效率高達(dá)80%)和低排(污染廢氣排放幾乎為零)的目標(biāo),但其作為一種船舶動(dòng)力系統(tǒng),控制關(guān)鍵是保持SOFC化學(xué)反應(yīng)所產(chǎn)生動(dòng)力與MGT旋轉(zhuǎn)所產(chǎn)生動(dòng)力的平衡。在建立系統(tǒng)模型的基礎(chǔ)上,提出混合動(dòng)力系統(tǒng)的控制方案。為獲得最大的效率,對(duì)SOFC的堆棧溫度、燃料流量、燃料利用率和對(duì)應(yīng)功率等關(guān)鍵參數(shù)進(jìn)行研究。同時(shí),提出SOFC與MGT兩種動(dòng)力系統(tǒng)之間動(dòng)力分配的控制方法。結(jié)果表明:該控制系統(tǒng)能有效控制該混合動(dòng)力系統(tǒng),使其獨(dú)立承擔(dān)適當(dāng)?shù)呢?fù)荷和適應(yīng)負(fù)荷的變動(dòng)。
[Abstract]:The hybrid power system based on solid oxide fuel cell (solid oxide fuel cell) and micro gas turbine (Micro Gas Turbineine MGT) is a promising marine power system in recent years. It can achieve the goals of high efficiency (efficiency up to 80%) and low emission (pollution emission is almost zero), but as a ship power system, the key to control is to keep the balance between the power generated by SOFC chemical reaction and the power produced by MGT rotation. Based on the system model, the control scheme of hybrid power system is proposed. In order to obtain the maximum efficiency, the key parameters such as stack temperature, fuel flow rate, fuel utilization ratio and corresponding power of SOFC are studied. At the same time, the control method of dynamic distribution between SOFC and MGT is proposed. The results show that the control system can effectively control the hybrid power system and make it bear the appropriate load and adaptive load independently.
【作者單位】: 青島遠(yuǎn)洋船員職業(yè)學(xué)院機(jī)電系;
【分類號(hào)】:U664.81
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