本文選題：永磁直線同步電機 + 終端滑�？刂���； 參考：《沈陽工業(yè)大學(xué)》2016年碩士論文

【摘要】：現(xiàn)代數(shù)控機床正朝向高速、高精度、復(fù)合、智能、綠色環(huán)保的趨勢發(fā)展。直接驅(qū)動伺服系統(tǒng)是數(shù)控機床領(lǐng)域研究的熱點之一,本文以永磁直線同步電機伺服系統(tǒng)為研究對象,針對永磁直線同步電機直接驅(qū)動系統(tǒng)易受到自身參數(shù)變化、負載擾動、邊端效應(yīng)、摩擦力擾動等不確定因素影響的情況,對速度環(huán)的控制策略進行了研究,設(shè)計新穎的二階終端滑�？刂破�,以提高直線伺服系統(tǒng)的魯棒性、快速性,研究內(nèi)容如下:首先,了解直線電機現(xiàn)代控制策略的國內(nèi)外研究現(xiàn)狀,并且詳細介紹了永磁直線伺服系統(tǒng),然后討論了影響永磁直線同步電機伺服系統(tǒng)性能下降的主要擾動因素。其次,采用二階改進終端滑�？刂品椒ㄔO(shè)計永磁直線電機的速度控制器以提高系統(tǒng)的響應(yīng)速度和穩(wěn)健性。設(shè)計改進終端滑模面,有效提高終端滑模的收斂速度。采用二階滑�？刂埔越档透倪M終端滑�？刂频亩墩穹取Ｗ詈笤诶碚摲治龅幕A(chǔ)上,運用MATLAB/Simulink對所設(shè)計的控制系統(tǒng)進行建模與仿真分析,驗證了所提出控制策略的有效性。最后,為進一步提高控制系統(tǒng)的快速響應(yīng)和控制精度,設(shè)計了基于自適應(yīng)螺旋算法的非奇異終端滑�？刂葡到y(tǒng)。取自適應(yīng)控制和二階滑�？刂贫叩膬�(yōu)點,實現(xiàn)螺旋算法控制增益的在線自適應(yīng)調(diào)整,且無需知道控制增益的不確定邊界,進一步削弱系統(tǒng)的抖振現(xiàn)象,從而提高了系統(tǒng)控制精度。在理論分析的基礎(chǔ)上,運用MATLAB/Simulink對所設(shè)計的控制系統(tǒng)進行建模與仿真分析。并將其與二階終端滑�？刂撇呗缘姆抡娼Y(jié)果做比較,證明基于自適應(yīng)二階非奇異終端滑�？刂葡到y(tǒng)的控制精度更高,響應(yīng)速度更快。
[Abstract]:Modern CNC machine tools are developing towards high speed, high precision, complex, intelligent, green and environmental protection. Direct drive servo system is one of the hot spots in the field of CNC machine tools. In this paper, the permanent magnet linear synchronous motor servo system is the research object, and the direct drive system of permanent magnet linear synchronous machine is easily subject to the change of its own parameters and the load disturbance. The control strategy of the speed loop is studied and a novel two order terminal sliding mode controller is designed to improve the robustness and rapidity of the linear servo system. The research contents are as follows: first, to understand the current research status of the modern control strategy of direct linear motor, and to discuss the status of the Research on the modern control strategy at home and abroad. The permanent magnet linear servo system is introduced and the main disturbance factors affecting the performance decline of the permanent magnet linear synchronous motor servo system are discussed. Secondly, the two order improved terminal sliding mode control method is used to design the speed controller of the permanent magnet linear motor in order to improve the response speed and robustness of the system. The convergence speed of the high terminal sliding mode. Two order sliding mode control is adopted to reduce the buffeting amplitude of the improved terminal sliding mode control. On the basis of the theoretical analysis, the MATLAB/Simulink is used to model and simulate the design of the control system, and the effectiveness of the proposed control strategy is verified. Finally, the control system is further improved. The non singular terminal sliding mode control system based on adaptive helix algorithm is designed, which is derived from the advantages of adaptive control and two order sliding mode control. It realizes the on-line adaptive adjustment of the control gain of the spiral algorithm without knowing the uncertain boundary of the control gain, and further weakens the chattering phenomenon of the system. The control precision of the system is improved. Based on the theoretical analysis, the MATLAB/Simulink is used to model and simulate the design of the control system. And compared with the simulation results of the two order terminal sliding mode control strategy, it is proved that the control precision of the adaptive two order non singular terminal sliding mode control system is higher and the response speed is better. Fast.

【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TG659

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