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  本文選題：永磁同步電機　切入點：滑模變結構　出處：《湘潭大學》2017年碩士論文

【摘要】：永磁同步電機具有體積小、效率高和可靠性好的優(yōu)勢,在現代工業(yè)控制領域應用越來越廣泛。然而永磁同步電機本身是強耦合性、復雜度較高的系統,存在著諸如電流耦合、參數攝動和外部干擾等諸多不利影響,直接影響系統性能。針對以上問題,提出一種基于干擾觀測器的滑�？刂扑惴�,并將其應用于永磁同步電機控制系統中,以實現永磁同步電機速度跟蹤控制。本課題選用TI公司DSP28035芯片,選擇英威騰永磁同步電機為研究對象,對永磁同步電機速度跟蹤系統進行研究。論文的主要工作如下:1、對永磁同步電機速度跟蹤系統的歷史背景及意義進行介紹;并分析國內外永磁同步電機速度跟蹤系統的研究現狀;在d-q坐標系下建立永磁同步電機數學模型;闡述空間矢量調制(SVPWM)技術的原理。2、基于干擾觀測器的永磁同步電機滑�？刂�。首先為實現電機轉速的快速響應與高精度跟蹤,利用Lyapunov穩(wěn)定性理論設計滑�？刂破�。其次在此基礎上,引入基于DOB的反饋控制器以補償負載變化擾動,從而保證系統的抗干擾性與魯棒性。最后在MATLAB/SIMULINK平臺上,搭建基于干擾觀測器的永磁同步電機滑模速度跟蹤系統仿真模型,通過仿真試驗結果表明所提出的基于干擾觀測器滑�？刂扑惴ㄝ^滑模算法性能更優(yōu),效果更好。3、基于DSP的永磁同步電機控制系統設計。首先在MATLAB/SIMULINK仿真基礎上,以TI公司出品的DSPTMS320F28035為核心處理器,搭建永磁同步電機速度跟蹤系統硬件實驗平臺,完成基于DSP的控制系統硬件和軟件設計。其次詳細介紹采樣電路和智能功率模塊IPM等硬件模塊,并在此基礎上,給出系統軟件控制部分,完成主程序、中斷控制程序、SVPWM算法以及各項子程序設計。最后通過實驗結果證明所搭建的永磁同步電機速度跟蹤系統是有效可行的。
[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.
【學位授予單位】：湘潭大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP273;TM341

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本文編號：1668277