電動助力車電機調(diào)速控制系統(tǒng)設(shè)計
[Abstract]:Along with people's green travel, the concept of healthy travel gradually deepened, and the relevant national regulations further improved and standardized, electric bicycle in China has a huge potential and broad market. The research related to electric booster will become a hot spot in the next period of time. However, there are a variety of obvious defects in the design of these vehicles: the quality of the whole vehicle exceeds the standard, the motor control is simple, the speed is open-loop control, and so on. Based on the application background of electric booster, this paper focuses on the design of driving and control algorithm of the motor. The main work is as follows: firstly, the structure and working principle of brushless DC motor (BLDCM) are introduced. The selection scheme of hub motor is put forward. This paper discusses the requirements for motor control in the booster system, and puts forward the closed-loop control based on the torque as the control object. At the same time, the optimal output value of the motor torque is put forward on the basis of the dynamic model of the vehicle. For the selected brushless DC motor, the backEMF method is introduced to detect the rotor position, and the complexity of the algorithm instead of the hardware complexity is proposed to reduce the cost and improve the stability of the system. Secondly, the design scheme of hardware circuit and chip selection for motor control are studied, and the design scheme of motor control and drive circuit is introduced in detail. In the aspect of torque control algorithm, vector control method is introduced to decouple the motion process of BLDCM to simplify the calculation. In the aspect of driving voltage modulation, voltage space vector (SVPWM) algorithm is introduced to improve control accuracy and power utilization efficiency. In the control strategy, the torque closed-loop control system based on PI controller is applied to the booster. The method of setting the parameters of the PI controller and the train of thought of selecting the parameters are introduced in detail to improve the control accuracy and response speed of the booster vehicle system. Finally, based on the research purpose and control requirements described above, the hardware and software experimental platform of the electric booster project is established, and the circuit test and algorithm verification are completed on the platform. From the experimental results, it can be seen that the torque closed-loop motor control system designed in this paper can meet the dynamic and steady control requirements of the electric booster project. At the same time, the system has a certain stability under the condition of normal driving (without speeding and resistance).
【學(xué)位授予單位】:杭州電子科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:U484;TP273
【參考文獻】
相關(guān)期刊論文 前10條
1 姜媛媛;劉柱;羅慧;王輝;;鋰電池剩余壽命的ELM間接預(yù)測方法[J];電子測量與儀器學(xué)報;2016年02期
2 姜華山;;電動車有“鋰”走天下?[J];企業(yè)觀察家;2015年07期
3 安群濤;孫力;孫立志;;新型開放式繞組永磁同步電機矢量控制系統(tǒng)研究[J];中國電機工程學(xué)報;2015年22期
4 陳江洪;湯雪華;平帆;;DSP啟動過程控制分析[J];電氣自動化;2014年05期
5 張洪帥;王平;韓邦成;程金緒;;基于模糊滑模觀測器的磁懸浮高速永磁同步電機轉(zhuǎn)子位置檢測方法[J];電工技術(shù)學(xué)報;2014年07期
6 王慶龍;張興;張崇巍;;永磁同步電機矢量控制雙滑模模型參考自適應(yīng)系統(tǒng)轉(zhuǎn)速辨識[J];中國電機工程學(xué)報;2014年06期
7 周通;黃建;馮志濤;;基于DSP的無傳感器無刷直流電機啟動控制研究[J];微電機;2013年03期
8 姜文彪;吳堅;;直流電機雙閉環(huán)PI控制技術(shù)研究[J];機床與液壓;2012年11期
9 年曉紅;丁榮軍;王堅;佘棟;;感應(yīng)電機速度和電阻自適應(yīng)辨識的LMI方法(英文)[J];中國電機工程學(xué)報;2012年12期
10 趙晏強;李金坡;;基于中國專利的鋰電池發(fā)展趨勢分析[J];情報雜志;2012年01期
相關(guān)博士學(xué)位論文 前1條
1 崔學(xué)深;感應(yīng)電機電源軟投入相關(guān)理論及節(jié)能控制新技術(shù)研究[D];華北電力大學(xué)(北京);2009年
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