【摘要】：隨著“中國制造2025”戰(zhàn)略的實(shí)施和相關(guān)配套政策的出臺,我國制造業(yè)到了從價值鏈低端向高端制造業(yè)、從制造大國向制造強(qiáng)國邁進(jìn)的關(guān)鍵階段。面臨氣候變暖、環(huán)境惡化和石油資源枯竭的全球挑戰(zhàn),以節(jié)能和綠色發(fā)展為核心的新能源汽車領(lǐng)域成為國家大力推動的重點(diǎn)領(lǐng)域,電動車也將成為未來汽車行業(yè)發(fā)展的主流趨勢。本課題以開關(guān)磁阻電機(jī)(Switched Reluctance Motor,SRM)為研究對象,對開關(guān)磁阻電機(jī)的模型、運(yùn)行原理、控制策略等進(jìn)行了深入分析與研究。論文首先依據(jù)開關(guān)磁阻電機(jī)的結(jié)構(gòu)和工作原理,推導(dǎo)開關(guān)磁阻電機(jī)的數(shù)學(xué)方程,并根據(jù)數(shù)學(xué)方程,分別建立相應(yīng)的線性模型、準(zhǔn)線性模型以及非線性模型,并分析開關(guān)磁阻電機(jī)控制策略極其應(yīng)用范圍。其次針對電動車用開關(guān)磁阻電動機(jī)低速運(yùn)行時會產(chǎn)生大轉(zhuǎn)矩脈動的情況,采用直接瞬時轉(zhuǎn)矩的控制策略來進(jìn)行抑制。設(shè)計了直接瞬時轉(zhuǎn)矩控制策略的轉(zhuǎn)矩控制環(huán),根據(jù)相應(yīng)的數(shù)學(xué)模型和控制原理對其進(jìn)行仿真建模分析,并將直接瞬時轉(zhuǎn)矩控制和電流斬波控制下產(chǎn)生的轉(zhuǎn)矩脈動進(jìn)行對比,驗證直接瞬時轉(zhuǎn)矩對轉(zhuǎn)矩脈動的有效抑制。然后針對電動車用開關(guān)磁阻電動機(jī)在高速運(yùn)行時的實(shí)際需求,對采用帶有中間抽頭的開關(guān)磁阻電機(jī)提出雙繞組驅(qū)動器拓?fù)浣Y(jié)構(gòu),并對電動運(yùn)行狀態(tài)下的不同工作模式進(jìn)行詳細(xì)分析。通過切換繞組和切換控制策略,實(shí)現(xiàn)對開關(guān)磁阻電動機(jī)高速運(yùn)行時的驅(qū)動控制,并依據(jù)控制策略的原理進(jìn)行了仿真驗證。最后以英飛凌公司生產(chǎn)的32位微控制器TC1782為主控芯片,搭建一個1kW的開關(guān)磁阻電機(jī)實(shí)驗平臺。根據(jù)實(shí)驗平臺的需求分別設(shè)計硬件系統(tǒng)和軟件系統(tǒng),并編寫相應(yīng)的程序?qū)刂撇呗赃M(jìn)行實(shí)驗,驗證在開關(guān)磁阻電機(jī)不同轉(zhuǎn)速時采取不同控制策略的正確性。
[Abstract]:With the implementation of the "made in China 2025" strategy and related supporting policies, China's manufacturing industry has reached a critical stage from the low end of the value chain to the high-end manufacturing industry and from a large manufacturing country to a manufacturing power. Facing the global challenges of global warming, environmental degradation and depletion of oil resources, the new energy automotive field, which is centered on energy conservation and green development, has become a key area promoted by the country. Electric vehicle will also become the mainstream trend of the future automobile industry development. Taking switched reluctance motor (Switched Reluctance Motor,SRM) as the research object, the model, operation principle and control strategy of switched reluctance motor are deeply analyzed and studied in this paper. Firstly, according to the structure and working principle of switched reluctance motor, the mathematical equation of switched reluctance motor is deduced, and the corresponding linear model, quasilinear model and nonlinear model are established according to the mathematical equation. The control strategy of switched reluctance motor and its application range are analyzed. Secondly, direct instantaneous torque control strategy is used to suppress the large torque ripple of switched reluctance motor (SRM) when it is running at low speed. The torque control loop of direct instantaneous torque control strategy is designed and simulated according to the corresponding mathematical model and control principle. The torque ripple produced by direct instantaneous torque control and current chopped control is compared. The direct instantaneous torque is proved to be effective in restraining torque ripple. Then aiming at the actual demand of switched reluctance motor for electric vehicle when it is running at high speed, the topology structure of double winding drive is proposed for switched reluctance motor with middle tap. At the same time, the different working modes under the electric running state are analyzed in detail. By switching windings and switching control strategy, the drive control of switched reluctance motor at high speed is realized, and the simulation is carried out according to the principle of the control strategy. Finally, the 32 bit microcontroller TC1782 produced by Infineon is used as the main control chip to build an experimental platform of switched reluctance motor (SRM) based on 1kW. According to the requirements of the experimental platform, the hardware system and software system are designed, and the corresponding program is written to test the control strategy, which verifies the correctness of different control strategies at different speed of switched reluctance motor.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM352;U469.72

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