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

【摘要】：無(wú)速度傳感器矢量控制變頻調(diào)速系統(tǒng)一直以來(lái)都是學(xué)術(shù)界和工程界在電機(jī)拖動(dòng)領(lǐng)域的研究熱點(diǎn)，本文旨在著重進(jìn)行兩個(gè)方面的研究：（1）基于反電動(dòng)勢(shì)（BEMF）的模型參考自適應(yīng)（MRAS）矢量控制系統(tǒng)速度辨識(shí)方法的實(shí)現(xiàn)，通過對(duì)感應(yīng)電機(jī)的等效電路進(jìn)行分析，分別從定子側(cè)和轉(zhuǎn)子側(cè)建立感應(yīng)電機(jī)的反電動(dòng)勢(shì)方程，通過模型參考自適應(yīng)的原理估算出異步電機(jī)轉(zhuǎn)速（2）異步電機(jī)矢量控制系統(tǒng)的控制器設(shè)計(jì)，首先建立電流環(huán)和速度環(huán)的數(shù)學(xué)模型，然后，給出相應(yīng)的電流控制器和速度控制器的設(shè)計(jì)方法 本文首先對(duì)交流調(diào)速系統(tǒng)的歷史和發(fā)展進(jìn)行回顧和展望，，對(duì)無(wú)速度傳感器矢量控制系統(tǒng)的轉(zhuǎn)速估算方法做簡(jiǎn)要介紹第二章介紹異步電機(jī)矢量控制的基礎(chǔ)知識(shí)和相關(guān)原理對(duì)異步電機(jī)的基本方程式，坐標(biāo)變換及在不同坐標(biāo)系下的數(shù)學(xué)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(duì)數(shù)字控制基礎(chǔ)知識(shí)作了介紹 然后詳細(xì)介紹了基于BEMF的MRAS矢量控制系統(tǒng)的電機(jī)轉(zhuǎn)速辨識(shí)方法，并考慮到在離散控制系統(tǒng)中如何對(duì)該算法進(jìn)行數(shù)字化實(shí)現(xiàn)，給出了Matlab/Simulink仿真結(jié)果和實(shí)驗(yàn)結(jié)果同時(shí)，為了克服依靠經(jīng)驗(yàn)來(lái)進(jìn)行PI參數(shù)整定的弊端，設(shè)計(jì)出異步電機(jī)矢量控制系統(tǒng)的自適應(yīng)控制器對(duì)電流環(huán)PI控制器和速度環(huán)PI控制器的設(shè)計(jì)做了詳細(xì)的介紹和推導(dǎo)考慮的數(shù)字控制中的時(shí)延問題對(duì)控制效果的影響，本文也詳細(xì)討論了解決的辦法，并作了相應(yīng)的仿真驗(yàn)證 最后，在軟件系統(tǒng)設(shè)計(jì)方面，給出了基于TMS320F28035為控制核心的系統(tǒng)軟件設(shè)計(jì)架構(gòu)，給出了異步電機(jī)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(duì)程序的實(shí)現(xiàn)作了詳細(xì)的介紹給出了在相關(guān)的測(cè)試平臺(tái)上的測(cè)試結(jié)果，對(duì)在Labview中觀測(cè)的測(cè)試結(jié)果做簡(jiǎn)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(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM921.51

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本文編號(hào)：1981577