本文關(guān)鍵詞：應用Simulink電動輪車輛輪邊電機輸出轉(zhuǎn)矩波動分析　出處：《機械設計與制造》2017年05期 　論文類型：期刊論文

  更多相關(guān)文章： 電動輪車輛 矢量控制 電機 輸出轉(zhuǎn)矩 波動 模型

【摘要】：電動輪車輛在短距離大載重運輸中應用普遍,當駕駛員指令突發(fā)大幅度變化時,電機可快速響應,但輸出轉(zhuǎn)矩波動較大,對系統(tǒng)沖擊較大,針對此進行分析。根據(jù)電動輪特點,電機采用低速區(qū)轉(zhuǎn)矩輸出穩(wěn)定矢量控制,很好實現(xiàn)異步電機轉(zhuǎn)矩與磁鏈解耦,進而控制電機輸出轉(zhuǎn)速�；赟imulink電機矢量控制模型,搭建電傳動系統(tǒng)模型,對不同工況電機響應及轉(zhuǎn)矩波動進行分析。針對轉(zhuǎn)矩波動,從控制模型入手分析影響轉(zhuǎn)矩脈動的原因及應對方法。結(jié)果可知:設定轉(zhuǎn)速不加負載、轉(zhuǎn)速發(fā)生突變、轉(zhuǎn)速緩慢增加、定負載運行等幾種工況下,電機調(diào)速性能良好,響應迅速;轉(zhuǎn)速發(fā)生突變時,電機對于速度響應很好,但在指令改變瞬間,電機輸出轉(zhuǎn)矩波動很大,且衰減很快,0.5s左右恢復正常;通過減小脈沖發(fā)生器中誤差寬度、轉(zhuǎn)子磁鏈給定值、調(diào)整轉(zhuǎn)子時間常數(shù)等可有效達到穩(wěn)定轉(zhuǎn)矩的目的;為進一步實車測試提供參考。
[Abstract]:Electric wheeled vehicle is widely used in short distance and large load transportation. When the driver's instruction changes suddenly and greatly, the motor can respond quickly, but the output torque fluctuates greatly, and the impact on the system is great. According to the characteristics of electric wheel, the motor adopts torque output stable vector control in low speed, which can decouple the torque and flux of asynchronous motor. Then the output speed of the motor is controlled. Based on the vector control model of the Simulink motor, the electric drive system model is built to analyze the motor response and torque ripple under different working conditions. Starting with the control model, this paper analyzes the causes and countermeasures of torque ripple. The results show that: no load, sudden change of speed, slow increase of speed, constant load operation and so on. Motor speed regulation performance is good, rapid response; When the rotational speed changes, the motor responds well to the speed, but at the moment of the instruction change, the output torque of the motor fluctuates greatly, and the attenuation quickly returns to normal for about 0.5 s. By reducing the error width of the pulse generator, setting the rotor flux and adjusting the rotor time constant, the purpose of stabilizing the torque can be achieved effectively. It provides reference for further test of real vehicle.
【作者單位】： 廣東理工學院;
【分類號】：TH22
【正文快照】： 1引言電動輪車輛結(jié)構(gòu)簡單、功率利用率高而被廣泛應用于非公路運輸,采用柴油發(fā)動機和交流電機組成動力源,通過整流逆變驅(qū)動輪邊電機,整個過程靈活方便、實現(xiàn)無極變速等[1]。對于電機控制系統(tǒng),當駕駛員指令突發(fā)大幅度變化時,要求電機應對突發(fā)情況應有較好速度響應,但在指令改變

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相關(guān)期刊論文 前1條

1 劉文,曾捷;永磁無刷直流電機轉(zhuǎn)矩波動及其抑制的探討[J];西安交通大學學報;1997年10期

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本文編號：1417086