本文選題：永磁同步電機(jī)　切入點(diǎn)：滑模變結(jié)構(gòu)　出處：《湘潭大學(xué)》2017年碩士論文

【摘要】：永磁同步電機(jī)具有體積小、效率高和可靠性好的優(yōu)勢(shì),在現(xiàn)代工業(yè)控制領(lǐng)域應(yīng)用越來(lái)越廣泛。然而永磁同步電機(jī)本身是強(qiáng)耦合性、復(fù)雜度較高的系統(tǒng),存在著諸如電流耦合、參數(shù)攝動(dòng)和外部干擾等諸多不利影響,直接影響系統(tǒng)性能。針對(duì)以上問(wèn)題,提出一種基于干擾觀測(cè)器的滑�？刂扑惴�,并將其應(yīng)用于永磁同步電機(jī)控制系統(tǒng)中,以實(shí)現(xiàn)永磁同步電機(jī)速度跟蹤控制。本課題選用TI公司DSP28035芯片,選擇英威騰永磁同步電機(jī)為研究對(duì)象,對(duì)永磁同步電機(jī)速度跟蹤系統(tǒng)進(jìn)行研究。論文的主要工作如下:1、對(duì)永磁同步電機(jī)速度跟蹤系統(tǒng)的歷史背景及意義進(jìn)行介紹;并分析國(guó)內(nèi)外永磁同步電機(jī)速度跟蹤系統(tǒng)的研究現(xiàn)狀;在d-q坐標(biāo)系下建立永磁同步電機(jī)數(shù)學(xué)模型;闡述空間矢量調(diào)制(SVPWM)技術(shù)的原理。2、基于干擾觀測(cè)器的永磁同步電機(jī)滑�？刂�。首先為實(shí)現(xiàn)電機(jī)轉(zhuǎn)速的快速響應(yīng)與高精度跟蹤,利用Lyapunov穩(wěn)定性理論設(shè)計(jì)滑�？刂破�。其次在此基礎(chǔ)上,引入基于DOB的反饋控制器以補(bǔ)償負(fù)載變化擾動(dòng),從而保證系統(tǒng)的抗干擾性與魯棒性。最后在MATLAB/SIMULINK平臺(tái)上,搭建基于干擾觀測(cè)器的永磁同步電機(jī)滑模速度跟蹤系統(tǒng)仿真模型,通過(guò)仿真試驗(yàn)結(jié)果表明所提出的基于干擾觀測(cè)器滑�？刂扑惴ㄝ^滑模算法性能更優(yōu),效果更好。3、基于DSP的永磁同步電機(jī)控制系統(tǒng)設(shè)計(jì)。首先在MATLAB/SIMULINK仿真基礎(chǔ)上,以TI公司出品的DSPTMS320F28035為核心處理器,搭建永磁同步電機(jī)速度跟蹤系統(tǒng)硬件實(shí)驗(yàn)平臺(tái),完成基于DSP的控制系統(tǒng)硬件和軟件設(shè)計(jì)。其次詳細(xì)介紹采樣電路和智能功率模塊IPM等硬件模塊,并在此基礎(chǔ)上,給出系統(tǒng)軟件控制部分,完成主程序、中斷控制程序、SVPWM算法以及各項(xiàng)子程序設(shè)計(jì)。最后通過(guò)實(shí)驗(yàn)結(jié)果證明所搭建的永磁同步電機(jī)速度跟蹤系統(tǒng)是有效可行的。
[Abstract]:Permanent magnet synchronous motor (PMSM) has the advantages of small size, high efficiency and good reliability, so it is widely used in modern industrial control field. However, PMSM is a system with strong coupling and high complexity, such as current coupling. A sliding mode control algorithm based on disturbance observer is proposed and applied to permanent magnet synchronous motor (PMSM) control system, which is directly affected by many adverse effects, such as parameter perturbation and external disturbance. In order to realize the speed tracking control of permanent magnet synchronous motor (PMSM), the DSP28035 chip of TI company and the permanent magnet synchronous motor (PMSM) are selected as the research object. The main work of this paper is as follows: 1. The historical background and significance of PMSM speed tracking system are introduced. The research status of the speed tracking system of PMSM at home and abroad is analyzed, and the mathematical model of PMSM in d-q coordinate system is established. This paper describes the principle of SVPWM (Space Vector Modulation) technology and the sliding mode control of PMSM based on disturbance observer. Firstly, in order to realize the fast response and high precision tracking of motor speed, The sliding mode controller is designed by using Lyapunov stability theory. Secondly, the feedback controller based on DOB is introduced to compensate the disturbance of load variation, so as to ensure the anti-interference and robustness of the system. Finally, on the MATLAB/SIMULINK platform, The simulation model of permanent magnet synchronous motor sliding mode velocity tracking system based on disturbance observer is built. The simulation results show that the proposed sliding mode control algorithm based on disturbance observer is better than the sliding mode algorithm. The control system of permanent magnet synchronous motor (PMSM) based on DSP is designed. Firstly, on the basis of MATLAB/SIMULINK simulation, the hardware experiment platform of PMSM speed tracking system is built with TI's DSPTMS320F28035 as the core processor. The hardware and software design of the control system based on DSP is completed. Secondly, the hardware modules such as sampling circuit and intelligent power module, such as IPM, are introduced in detail. On this basis, the software control part of the system is given to complete the main program. The interrupt control program SVPWM algorithm and each subroutine are designed. Finally, the experimental results show that the speed tracking system of PMSM is effective and feasible.
【學(xué)位授予單位】：湘潭大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP273;TM341

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本文編號(hào)：1668277