本文選題：無軸承永磁同步電機(jī) + 數(shù)學(xué)模型��； 參考：《江蘇大學(xué)》2017年碩士論文

【摘要】：無軸承永磁同步電機(jī)是一種集成了永磁同步電機(jī)和磁軸承兩者優(yōu)點(diǎn)的新型電機(jī)。該電機(jī)既具有永磁同步電機(jī)的結(jié)構(gòu)簡單、轉(zhuǎn)矩密度高、功率因數(shù)高、效率高等優(yōu)良特性,同時(shí)又具有磁軸承的無摩擦、無磨損、無需潤滑、免維護(hù)、使用壽命長等優(yōu)點(diǎn)。隨著電力電子技術(shù)、微處理器技術(shù)以及控制理論的迅速發(fā)展,使得無軸承永磁同步電機(jī)相關(guān)理論和應(yīng)用技術(shù)取得長足進(jìn)步,在飛輪儲(chǔ)能、航空航天、醫(yī)療器械、化工工業(yè)、精密機(jī)械加工等領(lǐng)域具有廣泛的應(yīng)用前景。本文在江蘇省重點(diǎn)研發(fā)計(jì)劃項(xiàng)目、江蘇省“333工程”以及江蘇省“青藍(lán)工程”的支持下,對(duì)無軸承永磁同步電機(jī)的基本原理及數(shù)學(xué)模型、本體結(jié)構(gòu)設(shè)計(jì)與分析、控制系統(tǒng)硬件設(shè)計(jì)、軟件設(shè)計(jì)以及實(shí)驗(yàn)等方面進(jìn)行了較為深入的研究。本論文的主要內(nèi)容包括:1.闡述了無軸承電機(jī)的研究背景與研究概況,總結(jié)了無軸承永磁同步電機(jī)的發(fā)展趨勢(shì)和應(yīng)用前景。同時(shí)分析了無軸承永磁同步電機(jī)內(nèi)存在的各種電磁力,闡述了無軸承永磁同步電機(jī)的運(yùn)行原理,應(yīng)用麥克斯韋張量法推導(dǎo)了徑向懸浮力的數(shù)學(xué)模型,此外還推導(dǎo)了電磁轉(zhuǎn)矩的數(shù)學(xué)模型。借助Ansoft/Maxwell軟件建立有限元仿真模型,對(duì)無軸承永磁同步電機(jī)的徑向懸浮力數(shù)學(xué)模型進(jìn)行驗(yàn)證,仿真結(jié)果驗(yàn)證了數(shù)學(xué)模型的正確性。最后設(shè)計(jì)了基于SVPWM的無軸承永磁同步電機(jī)轉(zhuǎn)子磁場(chǎng)定向控制的策略,并給出了具體的控制框圖。2.在無軸承永磁同步電機(jī)的基礎(chǔ)上,對(duì)其結(jié)構(gòu)進(jìn)行改進(jìn)設(shè)計(jì),提出一種新型的外轉(zhuǎn)子Halbach陣列定子無鐵心無軸承永磁同步電機(jī),使其能夠更好地應(yīng)用于飛輪儲(chǔ)能系統(tǒng)。詳細(xì)闡述了Halbach陣列永磁轉(zhuǎn)子的結(jié)構(gòu)和性能,同時(shí)給出新型無軸承永磁電機(jī)的本體結(jié)構(gòu),詳細(xì)設(shè)計(jì)電機(jī)本體的參數(shù),對(duì)該電機(jī)的各種電磁特性進(jìn)行分析。對(duì)多種結(jié)構(gòu)的無軸承永磁同步電機(jī)的轉(zhuǎn)子渦流損耗進(jìn)行有限元分析,分析結(jié)果表明外轉(zhuǎn)子Halbach陣列定子無鐵心無軸承永磁電機(jī)的轉(zhuǎn)子渦流損耗是最小的。仿真結(jié)果表明該新型無軸承永磁同步電機(jī)非常適合于飛輪儲(chǔ)能系統(tǒng)。3.詳細(xì)設(shè)計(jì)了無軸承永磁同步電機(jī)控制系統(tǒng)的硬件電路,主要包括DSP最小系統(tǒng)板、功率驅(qū)動(dòng)電路以及接口電路等。設(shè)計(jì)了無軸承永磁同步電機(jī)控制系統(tǒng)的軟件部分,給出了詳細(xì)的軟件流程圖。最后,整合硬件和軟件部分構(gòu)建完整的實(shí)驗(yàn)平臺(tái),并進(jìn)行了軟硬件部分的測(cè)試以及相關(guān)的實(shí)驗(yàn)研究,實(shí)驗(yàn)樣機(jī)實(shí)現(xiàn)了穩(wěn)定懸浮。
[Abstract]:Bearingless permanent magnet synchronous motor (BMSM) is a new type of motor which integrates the advantages of PMSM and magnetic bearings. The motor not only has the advantages of simple structure, high torque density, high power factor and high efficiency, but also has the advantages of no friction, no wear, no lubrication, no maintenance and long service life of magnetic bearing. With the rapid development of power electronics technology, microprocessor technology and control theory, the theory and application technology of bearingless permanent magnet synchronous motor (PMSM) have made great progress, such as flywheel energy storage, aerospace, medical equipment, chemical industry, etc. Precision machining and other fields have a wide range of application prospects. With the support of Jiangsu key R & D project, Jiangsu "333 Project" and Jiangsu "Green Blue Project", the basic principle and mathematical model of bearingless permanent magnet synchronous motor (PMSM) are analyzed and analyzed in this paper. The hardware design, software design and experiment of the control system are studied deeply. The main contents of this thesis include: 1. The research background and research situation of bearingless permanent magnet synchronous motor (BMSM) are introduced, and the development trend and application prospect of bearingless permanent magnet synchronous motor (PMSM) are summarized. At the same time, all kinds of electromagnetic forces existing in bearingless permanent magnet synchronous motor are analyzed, and the operating principle of bearingless permanent magnet synchronous motor is expounded. The mathematical model of radial suspension force is derived by Maxwell Zhang Liang method. In addition, the mathematical model of electromagnetic torque is derived. The finite element simulation model of bearingless permanent magnet synchronous motor (PMSM) is established by using Ansoft / Maxwell software, and the mathematical model of radial suspension force of bearingless permanent magnet synchronous motor is verified. The simulation results verify the correctness of the mathematical model. Finally, the strategy of rotor flux oriented control for bearingless permanent magnet synchronous motor based on SVPWM is designed, and the control block diagram. 2. Based on the design of bearingless permanent magnet synchronous motor, a new type of outer rotor Halbach array stator core free permanent magnet synchronous motor is proposed, which can be better applied to the flywheel energy storage system. The structure and performance of Halbach array permanent magnet rotor are described in detail. At the same time, the body structure of a new bearingless permanent magnet motor is given, the parameters of the motor body are designed in detail, and various electromagnetic characteristics of the motor are analyzed. The rotor eddy current loss of bearingless permanent magnet synchronous motor (PMSM) with various structures is analyzed by finite element method. The results show that the rotor eddy current loss of outer rotor Halbach array stator bearingless permanent magnet motor is minimum. The simulation results show that the new bearingless permanent magnet synchronous motor is very suitable for flywheel energy storage system. The hardware circuit of the bearingless permanent magnet synchronous motor control system is designed in detail, including DSP minimum system board, power drive circuit and interface circuit. The software part of the control system of bearingless permanent magnet synchronous motor is designed, and the detailed software flow chart is given. Finally, the hardware and software parts are integrated to build a complete experimental platform, and the hardware and software part of the test and related experimental research, the experimental prototype to achieve a stable suspension.
【學(xué)位授予單位】：江蘇大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM341;TP273

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本文編號(hào)：1992743