【摘要】：隨著高產(chǎn)高效的現(xiàn)代化礦井建設(shè),礦用防爆電動(dòng)車凸顯出零排放、噪聲低等優(yōu)點(diǎn),與防爆柴油車相比在環(huán)保和節(jié)能方面具有優(yōu)勢(shì)明顯,而煤礦井下運(yùn)行環(huán)境對(duì)車輛的控制策略有著特殊要求。為了適應(yīng)井下的運(yùn)輸環(huán)境,論文設(shè)計(jì)出適合礦用電動(dòng)車的電機(jī)控制策略,開展以下工作:(1)基于礦用防爆電動(dòng)車特點(diǎn),確定出防爆電動(dòng)車整體結(jié)構(gòu)以及布局,并對(duì)其動(dòng)力系統(tǒng)進(jìn)行匹配,得出合理的電動(dòng)車電機(jī)、蓄電池參數(shù)及型號(hào),利用Cruise軟件對(duì)整車系統(tǒng)進(jìn)行建模與動(dòng)力性能仿真。(2)以交流異步電機(jī)為對(duì)象,研究其矢量控制原理,按照轉(zhuǎn)子磁場(chǎng)的定向控制,對(duì)磁鏈進(jìn)行觀測(cè),在Matlab/Simulink軟件下建立轉(zhuǎn)子磁鏈的電流模型和電壓模型,通過(guò)仿真結(jié)果確定基于轉(zhuǎn)子電流模型的閉環(huán)控制方案。(3)根據(jù)電動(dòng)車在煤礦井下的行駛特點(diǎn),設(shè)計(jì)出基于磁鏈閉環(huán)反饋的矢量控制算法,在Matlab/Simulink環(huán)境下建立矢量控制算法模型并進(jìn)行仿真,得到電機(jī)運(yùn)行效果圖,驗(yàn)證方案的正確性和有效性。(4)搭建實(shí)驗(yàn)臺(tái)并進(jìn)行實(shí)驗(yàn)驗(yàn)證,通過(guò)實(shí)驗(yàn)結(jié)果與仿真結(jié)果的對(duì)比分析,所設(shè)計(jì)矢量控制策略可有效提高電機(jī)的轉(zhuǎn)矩輸出能力以及轉(zhuǎn)矩的響應(yīng)速度。
[Abstract]:With the construction of modern mine with high yield and high efficiency, explosion-proof electric vehicles for mining have the advantages of zero emission and low noise, and have obvious advantages in environmental protection and energy saving compared with explosion-proof diesel vehicles. The coal mine operating environment has special requirements for vehicle control strategy. In order to adapt to the underground transportation environment, the paper designs the motor control strategy suitable for mine electric vehicles, and carries out the following work: (1) based on the characteristics of mine explosion-proof electric vehicles, the overall structure and layout of explosion-proof electric vehicles are determined. By matching its power system, the reasonable parameters and models of electric vehicle motor, battery are obtained, and the whole vehicle system is modeled and simulated by Cruise software. (2) the AC asynchronous motor is taken as the object. The principle of vector control is studied. According to the directional control of rotor magnetic field, the flux chain is observed, and the current model and voltage model of rotor flux are established under Matlab/Simulink software. The closed-loop control scheme based on rotor current model is determined by simulation results. (3) according to the driving characteristics of electric vehicles in coal mines, a vector control algorithm based on flux chain closed-loop feedback is designed. The vector control algorithm model is established and simulated in Matlab/Simulink environment, and the running effect diagram of the motor is obtained, which verifies the correctness and effectiveness of the scheme. (4) the experimental platform is built and the experimental results are verified. By comparing the experimental results with the simulation results, the designed vector control strategy can effectively improve the torque output capacity and torque response speed of the motor.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TD614.3

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