【摘要】：以永磁同步電機為驅動部件的交流伺服系統(tǒng)以高效率及結構簡單等優(yōu)點著稱，目前廣泛應用于印刷機、包裝機械、軌道交通等領域。然而，永磁同步電機是一個多變量、強耦合的非線性系統(tǒng)，存在著諸如參數(shù)攝動和外部擾動等諸多不利因素，直接影響著控制系統(tǒng)性能的提高。為了實際工程應用的需求，迫切需要開展永磁同步電機控制方法的研究，以提高永磁同步電機伺服系統(tǒng)的性能。 本文以永磁同步電機為對象，滑模變結構控制理論為基礎，數(shù)字信號處理器為平臺，提高系統(tǒng)的魯棒性和減少滑模抖振為目標，從理論、方法到工程實現(xiàn)，對基于滑模變結構的永磁同步電機控制方法進行了深入的研究。其主要研究工作如下： 通過查閱國內外文獻，梳理了目前伺服系統(tǒng)所采用的主要算法，對存在的問題進行了總結。提出滑�？刂品椒ǹ梢杂行岣哂来磐诫姍C伺服系統(tǒng)的性能，并指出基于擾動觀測器的控制方法可以有效削弱滑�？刂频亩墩瘛� 針對傳統(tǒng)的伺服系統(tǒng)控制算法難以滿足控制系統(tǒng)要求的問題，提出基于擾動上下界的滑模速度控制方法。該控制算法利用滑�？刂茖_動的魯棒性提高了伺服控制系統(tǒng)的性能，且設計簡單，參數(shù)易于調節(jié)。 針對滑模控制器存在抖振問題，，提出基于級聯(lián)滑模擾動觀測器設計方法，利用滑模變結構等值原理對擾動進行觀測，將擾動的觀測值補償至滑�？刂破鳎瑥亩鴺嫵删C合滑�？刂扑惴�，該算法可以有效地削弱抖振現(xiàn)象。 針對滑模控制器實時實現(xiàn)問題，利用數(shù)字信號處理器，提出基于滑模變結構的永磁同步電機實時控制方案，實驗研究結果顯示本文所提方法有效。
[Abstract]:Ac servo system, which is driven by permanent magnet synchronous motor (PMSM), is famous for its high efficiency and simple structure. It is widely used in printing press, packaging machinery, rail transit and other fields. However, permanent magnet synchronous motor (PMSM) is a multi-variable and strongly coupled nonlinear system, which has many unfavorable factors, such as parameter perturbation and external disturbance, which directly affect the performance of the control system. In order to meet the needs of practical engineering application, it is urgent to study the control method of permanent magnet synchronous motor (PMSM) in order to improve the performance of PMSM servo system. In this paper, based on the theory of sliding mode variable structure control and digital signal processor, the robustness of the system is improved and the sliding mode buffeting is reduced. From theory, method to engineering realization, the control method of permanent magnet synchronous motor (PMSM) based on sliding mode variable structure is deeply studied. The main research work is as follows: through consulting the literature at home and abroad, this paper combs the main algorithms used in the servo system at present, and summarizes the existing problems. The sliding mode control method is proposed to effectively improve the performance of permanent magnet synchronous motor servo system, and it is pointed out that the control method based on disturbance observer can effectively weaken the buffeting of sliding mode control. In order to solve the problem that the traditional servo system control algorithm is difficult to meet the requirements of the control system, a sliding mode speed control method based on the upper and lower bounds of disturbance is proposed. The performance of the servo control system is improved by using the robustness of sliding mode control to disturbance, and the design is simple and the parameters are easy to adjust. In order to solve the buffeting problem of sliding mode controller, a design method based on cascade sliding mode disturbance observer is proposed. The disturbance is observed by using sliding mode variable structure equivalence principle, and the observed value of disturbance is compensated to the sliding mode controller to form a comprehensive sliding mode control algorithm, which can effectively weaken the buffeting phenomenon. In order to solve the problem of real-time realization of sliding mode controller, a real-time control scheme of permanent magnet synchronous motor (PMSM) based on sliding mode variable structure is proposed by using digital signal processor. The experimental results show that the proposed method is effective.
【學位授予單位】：湖南工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM341

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相關博士學位論文 前1條

1 何靜;基于觀測器的非線性系統(tǒng)魯棒故障檢測與重構方法研究[D];國防科學技術大學;2009年

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