發(fā)布時間：2018-06-01 01:38

  本文選題：無刷直流電動機 + SVPWM　； 參考：《華東交通大學》2017年碩士論文

【摘要】：無刷直流電動機(Brushless DC Motor,以下簡稱BLDCM)以其自身結構簡單、調速范圍廣、扭矩大、噪聲低、可靠性性能優(yōu)良等特點廣泛應用于現代工業(yè)自動化、航空航天等領域,無刷直流電動機控制系統穩(wěn)、準、快特性成為廣大科研工作者不懈追求的目標。本文首先結合國內外關于研究無刷直流電動機文獻資料,介紹無刷直流電動機發(fā)展歷程及研究現狀;從研究對象自身機械結構、運動原理方面入手,采用SVPWM控制方式建立無刷直流電動機控制系統。在以上理論的基礎上,搭建無刷直流電動機實驗平臺。實驗平臺主要分為電機控制電路和驅動電路,選用ARM COTEX-M3系列芯片作為控制系統主控芯片,驅動電路采用N+N結構選用F540NS型號MOSFET,以IR2101作為MOSFET驅動芯片。本文研究重點在于采用正弦波SVPWM控制方式,以“三電阻采樣法”配合霍爾傳感器實現控制系統PID電流環(huán)與速度環(huán)雙閉環(huán)。研究中結合電動機本體在運動過程中參數非線性變化,控制算法根據被控對象參數變化實時調整PID參數,從而實現無刷直流電動機穩(wěn)定、快速、準確的控制。最后通過實驗平臺測試,驗證了本論文設計無刷直流電動機控制系統方案科學合理,電機控制能達到穩(wěn)定、快速、準確的控制性能指標,實現了預期設計要求。
[Abstract]:Brushless DC Motor (BLDCM) is widely used in modern industrial automation, aerospace and other fields because of its simple structure, wide speed range, large torque, low noise and excellent reliability. Brushless DC motor control system stability, accuracy, fast characteristics of scientific research workers unremitting pursuit of the goal. This paper firstly introduces the development course and research status of brushless DC motor, starting with the mechanical structure and motion principle of the research object, based on the domestic and foreign literature about the research of brushless DC motor, and introduces the development of brushless DC motor and its current research status. The brushless DC motor control system is established by using SVPWM control mode. Based on the above theory, the experimental platform of brushless DC motor is built. The experimental platform is mainly divided into motor control circuit and drive circuit. ARM COTEX-M3 series chips are selected as the main control chip of the control system. The driving circuit adopts N N structure to select F540NS model MOSFET and IR2101 as MOSFET driver chip. The emphasis of this paper is to adopt the sine wave SVPWM control method and to realize the double closed loop of the PID current loop and the velocity loop of the control system by using the "three resistance sampling method" and the Hall sensor. In the study, the control algorithm adjusts the PID parameters in real time according to the parameters change of the controlled object, so that the brushless DC motor can be controlled stably, quickly and accurately. Finally, through the experiment platform test, it is proved that the design scheme of the brushless DC motor control system is scientific and reasonable, the motor control can achieve stable, fast and accurate control performance index, and achieve the expected design requirements.
【學位授予單位】：華東交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP273;TM33

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本文編號：1962359