本文選題：永磁同步電動機(jī) + 優(yōu)化設(shè)計　； 參考：《北方工業(yè)大學(xué)》2017年碩士論文

【摘要】：永磁同步電動機(jī)因為其高效節(jié)能、結(jié)構(gòu)和尺寸靈活多樣等突出優(yōu)點(diǎn),在航空航天以及工農(nóng)業(yè)生產(chǎn)中有著廣泛應(yīng)用。積極開展對永磁同步電動機(jī)優(yōu)化設(shè)計技術(shù)的研究,開發(fā)更加高效和適應(yīng)于多場合的永磁同步電動機(jī)對緩解全球能源問題,節(jié)約資源、保護(hù)環(huán)境以及占有電機(jī)市場提高國際競爭力具有重要意義。異步起動永磁同步電動機(jī)是具有自起動能力的永磁同步電動機(jī),兼具有感應(yīng)電動機(jī)異步起動的能力和永磁同步電動機(jī)同步運(yùn)行能力,該電機(jī)轉(zhuǎn)子中同時存在起動籠和永磁體,因此轉(zhuǎn)子的設(shè)計空間比較緊張,電機(jī)的結(jié)構(gòu)設(shè)計更加復(fù)雜。為解決電機(jī)設(shè)計中磁路計算復(fù)雜和查表工作繁瑣、迭代處理耗時太長以及計算修正參數(shù)過多而導(dǎo)致精確性較差等問題,本文首先利用C++語言對電機(jī)的磁路法設(shè)計過程進(jìn)行編程,采用場路結(jié)合法,有效提高了電機(jī)設(shè)計的效率和準(zhǔn)確性。電機(jī)優(yōu)化設(shè)計屬于工程上有約束多變量非線性規(guī)劃問題,遺傳算法作為一種全局優(yōu)化算法因為其簡單高效和全局搜索的特點(diǎn)而廣泛應(yīng)用于電機(jī)優(yōu)化設(shè)計中。本文在深入研究基本遺傳算法尋優(yōu)原理的基礎(chǔ)上提出了改進(jìn)型自適應(yīng)遺傳算法,提高了收斂速度同時避免了局部最優(yōu)的問題;然后結(jié)合異步起動永磁同步電機(jī)的實際設(shè)計特點(diǎn)建立優(yōu)化設(shè)計數(shù)學(xué)模型,將基本電磁設(shè)計程序與優(yōu)化設(shè)計算法相連接,實現(xiàn)兩種算法在電機(jī)優(yōu)化設(shè)計中的應(yīng)用,通過對優(yōu)化前后設(shè)計方案的有限元仿真分析,驗證了優(yōu)化算法的有效性。最后,本文結(jié)合以上電機(jī)優(yōu)化設(shè)計程序基于Microsoft Visual Studio 2010平臺開發(fā)設(shè)計了一款異步起動永磁同步電機(jī)的優(yōu)化設(shè)計軟件,該軟件能夠?qū)崿F(xiàn)電機(jī)的基本電磁計算、優(yōu)化設(shè)計、槽型和工作特性曲線繪制以及數(shù)據(jù)保存等功能,軟件界面友好、操作簡便,能夠快速實現(xiàn)對異步起動永磁同步電動機(jī)的優(yōu)化設(shè)計,在提高設(shè)計電機(jī)性能的同時縮短了研發(fā)周期,在電機(jī)設(shè)計領(lǐng)域具有較好的實用價值。
[Abstract]:Permanent magnet synchronous motor (PMSM) has been widely used in aerospace industry and agriculture because of its advantages such as high efficiency and energy saving flexible structure and various dimensions. Actively carrying out the research on the optimization design technology of permanent magnet synchronous motor and developing more efficient permanent magnet synchronous motor suitable for many occasions to alleviate the global energy problem and save resources, It is of great significance to protect the environment and occupy the motor market to improve the international competitiveness. Asynchronous starting permanent magnet synchronous motor (PMSM) is a permanent magnet synchronous motor (PMSM) with self-starting capability. It has the capability of induction motor's asynchronous starting and permanent magnet's synchronous operation. There are both starting cage and permanent magnet in the rotor of this motor. Therefore, the rotor design space is relatively tight, the structure of the motor design is more complex. In order to solve the problems such as complicated calculation of magnetic circuit and complicated table searching in motor design, too long iterative processing time and too much calculation and correction parameters, the accuracy is poor, and so on. In this paper, the magnetic circuit design process of motor is programmed by C language, and the efficiency and accuracy of motor design are improved effectively by using field circuit method. The optimal design of motor is a constrained multivariable nonlinear programming problem in engineering. As a global optimization algorithm, genetic algorithm (GA) is widely used in motor optimization design because of its simple, high efficiency and global search characteristics. In this paper, an improved adaptive genetic algorithm (AGA) is proposed based on the basic genetic algorithm (GA) optimization principle, which improves the convergence speed and avoids the problem of local optimization. Then combined with the practical design characteristics of asynchronous starting permanent magnet synchronous motor (PMSM), the mathematical model of optimal design is established, and the basic electromagnetic design program is connected with the optimal design algorithm to realize the application of the two algorithms in the optimal design of the motor. The effectiveness of the optimization algorithm is verified by the finite element simulation analysis of the design scheme before and after optimization. Finally, based on the Microsoft Visual Studio 2010 platform, an optimal design software for asynchronous starting permanent magnet synchronous motor (PMSM) is developed, which can realize the basic electromagnetic calculation and optimal design of the motor. With the functions of drawing slot and working characteristic curve and data saving, the software interface is friendly, the operation is simple, the optimum design of asynchronous starting permanent magnet synchronous motor can be realized quickly, and the performance of the design motor is improved and the research and development cycle is shortened. It has good practical value in the field of motor design.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM351

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