本文選題：異步電機 + 矢量控制��； 參考：《華南理工大學》2014年碩士論文

【摘要】：無速度傳感器矢量控制變頻調(diào)速系統(tǒng)一直以來都是學術(shù)界和工程界在電機拖動領(lǐng)域的研究熱點，本文旨在著重進行兩個方面的研究：（1）基于反電動勢（BEMF）的模型參考自適應（MRAS）矢量控制系統(tǒng)速度辨識方法的實現(xiàn)，通過對感應電機的等效電路進行分析，分別從定子側(cè)和轉(zhuǎn)子側(cè)建立感應電機的反電動勢方程，通過模型參考自適應的原理估算出異步電機轉(zhuǎn)速（2）異步電機矢量控制系統(tǒng)的控制器設(shè)計，首先建立電流環(huán)和速度環(huán)的數(shù)學模型，然后，給出相應的電流控制器和速度控制器的設(shè)計方法 本文首先對交流調(diào)速系統(tǒng)的歷史和發(fā)展進行回顧和展望，，對無速度傳感器矢量控制系統(tǒng)的轉(zhuǎn)速估算方法做簡要介紹第二章介紹異步電機矢量控制的基礎(chǔ)知識和相關(guān)原理對異步電機的基本方程式，坐標變換及在不同坐標系下的數(shù)學模型加以描述介紹了矢量控制的精髓SVPWM基本原理及控制算法考慮到現(xiàn)代的矢量控制均為數(shù)字控制，故對數(shù)字控制基礎(chǔ)知識作了介紹 然后詳細介紹了基于BEMF的MRAS矢量控制系統(tǒng)的電機轉(zhuǎn)速辨識方法，并考慮到在離散控制系統(tǒng)中如何對該算法進行數(shù)字化實現(xiàn)，給出了Matlab/Simulink仿真結(jié)果和實驗結(jié)果同時，為了克服依靠經(jīng)驗來進行PI參數(shù)整定的弊端，設(shè)計出異步電機矢量控制系統(tǒng)的自適應控制器對電流環(huán)PI控制器和速度環(huán)PI控制器的設(shè)計做了詳細的介紹和推導考慮的數(shù)字控制中的時延問題對控制效果的影響，本文也詳細討論了解決的辦法，并作了相應的仿真驗證 最后，在軟件系統(tǒng)設(shè)計方面，給出了基于TMS320F28035為控制核心的系統(tǒng)軟件設(shè)計架構(gòu)，給出了異步電機矢量控制的主程序流程圖以及相關(guān)的中斷程序流程圖，并對程序的實現(xiàn)作了詳細的介紹給出了在相關(guān)的測試平臺上的測試結(jié)果，對在Labview中觀測的測試結(jié)果做簡要的說明和分析
[Abstract]:The speed sensorless vector control variable frequency speed control system has always been the research hotspot in the field of motor drive in academic and engineering circles. This paper focuses on two aspects: 1) the realization of speed identification method of model reference adaptive control system based on BEMF, and the analysis of equivalent circuit of induction motor. The back EMF equations of induction motor are established from stator side and rotor side respectively. The controller design of vector control system for induction motor is estimated by model reference adaptive principle. First, the mathematical models of current loop and speed loop are established. Then, the design methods of current controller and speed controller are given. Firstly, the history and development of AC speed regulating system are reviewed and prospected. The speed estimation method of speed sensorless vector control system is briefly introduced in the second chapter, the basic knowledge of vector control of asynchronous motor and the basic equations of related principle to asynchronous motor are introduced. Coordinate transformation and mathematical models in different coordinate systems are described. The essence of vector control, the basic principle of SVPWM, and the control algorithm are described. The modern vector control is considered as digital control. In this paper, the basic knowledge of digital control is introduced, and then the motor speed identification method of MRAS vector control system based on BEMF is introduced in detail, and how to realize the algorithm digitally in discrete control system is considered. The simulation results and experimental results of Matlab / Simulink are given. In order to overcome the shortcoming of Pi parameter tuning based on experience, The adaptive controller of vector control system for asynchronous motor is designed. The design of current loop Pi controller and speed loop Pi controller is introduced in detail. This paper also discusses the solution in detail, and makes the corresponding simulation verification. Finally, in the aspect of software system design, the system software design architecture based on TMS320F28035 is given. The main program flow chart and related interrupt program flow chart of vector control of asynchronous motor are given, and the implementation of the program is introduced in detail, and the test results on the related test platform are given. Brief description and analysis of the test results observed in LabVIEW
【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM921.51

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本文編號：1981577