發(fā)布時(shí)間：2018-06-05 23:49

  本文選題：永磁同步電機(jī) + 矢量控制�。� 參考：《蘭州交通大學(xué)》2014年碩士論文

【摘要】：做為調(diào)速系統(tǒng)的執(zhí)行機(jī)構(gòu)，永磁同步電機(jī)因其具有的體積小、效率高、噪聲小、轉(zhuǎn)矩電流比高、運(yùn)行可靠等一系列的優(yōu)點(diǎn)，在電動(dòng)汽車(chē)、國(guó)防、航空設(shè)備、機(jī)器人等領(lǐng)域被廣泛的應(yīng)用。 論文對(duì)永磁同步電機(jī)的調(diào)速方法進(jìn)行了研究，研究的重點(diǎn)是對(duì)系統(tǒng)速度環(huán)的控制器進(jìn)行改進(jìn)。論文首先建立了永磁同步電機(jī)dq軸數(shù)學(xué)模型，深入研究永磁同步電機(jī)矢量控制方法，在此基礎(chǔ)上確定并建立了基于id=0的永磁同步電機(jī)矢量控制調(diào)速方法。其次采用電壓空間矢量調(diào)制技術(shù)建立電流、速度雙閉環(huán)調(diào)速系統(tǒng)。針對(duì)傳統(tǒng)PI控制中當(dāng)系統(tǒng)面對(duì)控制對(duì)象發(fā)生變化的情況時(shí)無(wú)法取得較好的控制效果這一問(wèn)題，論文將不依賴(lài)被控對(duì)象的數(shù)學(xué)模型以及魯棒性強(qiáng)的模糊控制與傳統(tǒng)PI相結(jié)合，設(shè)計(jì)出模糊自適應(yīng)PI控制器。在Matlab/Simulink環(huán)境下，對(duì)基于id=0矢量控制的永磁同步電機(jī)調(diào)速系統(tǒng)分別采用這兩種不同的控制器進(jìn)行仿真實(shí)驗(yàn)，實(shí)驗(yàn)結(jié)果可證，設(shè)計(jì)的復(fù)合控制器較傳統(tǒng)PI控制器能夠很好的克服系統(tǒng)模型參數(shù)的變化以及非線(xiàn)性等不確定因素的影響從而提高系統(tǒng)的動(dòng)靜態(tài)性能和魯棒性。 調(diào)速過(guò)程中，系統(tǒng)會(huì)受到各種因素影響，但這些影響因素是不確定的，很大程度上影響了高性能控制的實(shí)現(xiàn)。為解決這一問(wèn)題，論文采用間接型自適應(yīng)模糊控制器并用李雅譜諾夫綜合法對(duì)其進(jìn)行設(shè)計(jì)，確保了自適應(yīng)參數(shù)可在線(xiàn)調(diào)節(jié)，以便系統(tǒng)輸出可以很好的收斂于參考信號(hào)。最后運(yùn)用Matlab/Simulink及編程對(duì)系統(tǒng)進(jìn)行仿真建模，模擬系統(tǒng)運(yùn)行過(guò)程。仿真結(jié)果驗(yàn)證了改進(jìn)的控制方法克服了傳統(tǒng)PI控制理論設(shè)計(jì)時(shí)系統(tǒng)對(duì)參數(shù)變化及負(fù)載擾動(dòng)敏感等問(wèn)題，增強(qiáng)了永磁同步電機(jī)調(diào)速系統(tǒng)的魯棒性和動(dòng)靜態(tài)性能。
[Abstract]:As the actuator of the speed control system, PMSM has a series of advantages such as small size, high efficiency, low noise, high torque / current ratio, reliable operation, etc., in electric vehicles, national defense, aviation equipment, etc. Robots and other fields are widely used. In this paper, the speed regulation method of PMSM is studied, and the emphasis of the research is to improve the controller of the system speed loop. Firstly, the mathematical model of dq-axis of PMSM is established, and the vector control method of PMSM is deeply studied. On this basis, the speed regulation method of PMSM vector control based on id=0 is established. Secondly, the voltage space vector modulation technique is used to establish the current and speed double closed loop speed regulation system. In view of the problem that the system can not achieve better control effect when the control object changes in the traditional Pi control, the paper combines the mathematical model independent of the controlled object and the robust fuzzy control with the traditional Pi. A fuzzy adaptive Pi controller is designed. In the Matlab/Simulink environment, the PMSM speed control system based on id=0 vector control is simulated with these two different controllers, and the experimental results can be verified. Compared with the traditional Pi controller, the designed composite controller can overcome the change of system model parameters and the influence of uncertain factors, such as nonlinearity, so as to improve the dynamic and dynamic performance and robustness of the system. In the process of speed regulation, the system will be affected by a variety of factors, but these factors are uncertain, to a large extent, affect the realization of high performance control. In order to solve this problem, the indirect adaptive fuzzy controller and Lyapunov synthesis method are used to design it, which ensures that the adaptive parameters can be adjusted online, so that the output of the system can converge to the reference signal well. Finally, the system is simulated and modeled by Matlab/Simulink and programming, and the running process of the system is simulated. The simulation results show that the improved control method overcomes the problems of sensitivity to parameter variation and load disturbance in the design of traditional Pi control theory, and enhances the robustness and dynamic and static performance of PMSM speed control system.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TM341

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本文編號(hào)：1983961