【摘要】：以永磁同步電機(jī)為驅(qū)動(dòng)部件的交流伺服系統(tǒng)以高效率及結(jié)構(gòu)簡(jiǎn)單等優(yōu)點(diǎn)著稱(chēng)，目前廣泛應(yīng)用于印刷機(jī)、包裝機(jī)械、軌道交通等領(lǐng)域。然而，永磁同步電機(jī)是一個(gè)多變量、強(qiáng)耦合的非線(xiàn)性系統(tǒng)，存在著諸如參數(shù)攝動(dòng)和外部擾動(dòng)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(shí)際工程應(yīng)用的需求，迫切需要開(kāi)展永磁同步電機(jī)控制方法的研究，以提高永磁同步電機(jī)伺服系統(tǒng)的性能。 本文以永磁同步電機(jī)為對(duì)象，滑模變結(jié)構(gòu)控制理論為基礎(chǔ)，數(shù)字信號(hào)處理器為平臺(tái)，提高系統(tǒng)的魯棒性和減少滑模抖振為目標(biāo)，從理論、方法到工程實(shí)現(xiàn)，對(duì)基于滑模變結(jié)構(gòu)的永磁同步電機(jī)控制方法進(jìn)行了深入的研究。其主要研究工作如下： 通過(guò)查閱國(guó)內(nèi)外文獻(xiàn)，梳理了目前伺服系統(tǒng)所采用的主要算法，對(duì)存在的問(wèn)題進(jìn)行了總結(jié)。提出滑�？刂品椒ǹ梢杂行岣哂来磐诫姍C(jī)伺服系統(tǒng)的性能，并指出基于擾動(dòng)觀測(cè)器的控制方法可以有效削弱滑模控制的抖振。 針對(duì)傳統(tǒng)的伺服系統(tǒng)控制算法難以滿(mǎn)足控制系統(tǒng)要求的問(wèn)題，提出基于擾動(dòng)上下界的滑模速度控制方法。該控制算法利用滑模控制對(duì)擾動(dòng)的魯棒性提高了伺服控制系統(tǒng)的性能，且設(shè)計(jì)簡(jiǎn)單，參數(shù)易于調(diào)節(jié)。 針對(duì)滑�？刂破鞔嬖诙墩駟�(wèn)題，，提出基于級(jí)聯(lián)滑模擾動(dòng)觀測(cè)器設(shè)計(jì)方法，利用滑模變結(jié)構(gòu)等值原理對(duì)擾動(dòng)進(jìn)行觀測(cè)，將擾動(dòng)的觀測(cè)值補(bǔ)償至滑模控制器，從而構(gòu)成綜合滑模控制算法，該算法可以有效地削弱抖振現(xiàn)象。 針對(duì)滑�？刂破鲗�(shí)時(shí)實(shí)現(xiàn)問(wèn)題，利用數(shù)字信號(hào)處理器，提出基于滑模變結(jié)構(gòu)的永磁同步電機(jī)實(shí)時(shí)控制方案，實(shí)驗(yàn)研究結(jié)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(xué)位授予單位】：湖南工業(yè)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

【參考文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 何靜;基于觀測(cè)器的非線(xiàn)性系統(tǒng)魯棒故障檢測(cè)與重構(gòu)方法研究[D];國(guó)防科學(xué)技術(shù)大學(xué);2009年

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