本文選題：容錯(cuò)式永磁磁通切換電機(jī) + 徑向力��； 參考：《江蘇大學(xué)》2017年碩士論文

【摘要】：近年來,現(xiàn)代工業(yè)對永磁電機(jī)的需求越來越高。在對電機(jī)振動(dòng)和噪聲要求比較嚴(yán)格的應(yīng)用場合,振動(dòng)和噪聲成為評價(jià)電機(jī)性能的重要指標(biāo)之一,永磁電機(jī)的振動(dòng)和噪聲不容忽視。因此,對永磁電機(jī)振動(dòng)噪聲產(chǎn)生機(jī)理和抑制措施的研究逐漸成為熱點(diǎn)。對于永磁電機(jī)而言,在保證電機(jī)電磁性能不變差的前提下,有效改善電機(jī)的振動(dòng)和噪聲具有重要意義。本文針對10槽18極容錯(cuò)式永磁磁通切換電機(jī),提出并比較幾種新型定轉(zhuǎn)子結(jié)構(gòu)對電機(jī)振動(dòng)噪聲以及電磁性能的影響。首先,構(gòu)建容錯(cuò)式永磁磁通切換電機(jī)有限元模型,對電機(jī)的結(jié)構(gòu)參數(shù)進(jìn)行了優(yōu)化設(shè)計(jì)。繼而,比較新型定轉(zhuǎn)子結(jié)構(gòu)對電機(jī)的振動(dòng)噪聲以及電磁性能的影響。最后,對原電機(jī)、新型轉(zhuǎn)子斜齒電機(jī)和相關(guān)硬件控制電路進(jìn)行了介紹展示,并實(shí)驗(yàn)測量兩電機(jī)的振動(dòng)加速度。本文的研究成果主要包括以下幾個(gè)方面:1.已有的容錯(cuò)式永磁磁通切換電機(jī)存在著振動(dòng)噪聲大、反電勢波形正弦度低等缺點(diǎn),為了提升電機(jī)性能,本文提出了一種新型的定子具有雙容錯(cuò)齒結(jié)構(gòu)電機(jī)。利用有限元電磁仿真軟件,比較兩電機(jī)的各項(xiàng)電磁性能,主要有空載反電勢、平均轉(zhuǎn)矩、轉(zhuǎn)矩脈動(dòng)、徑向力波。對原電機(jī)和雙容錯(cuò)齒電機(jī)進(jìn)行結(jié)構(gòu)力學(xué)分析和聲學(xué)仿真分析,比較兩電機(jī)的振動(dòng)和噪聲大小。通過仿真結(jié)果可知,新型定子雙容錯(cuò)齒永磁磁通切換電機(jī)可以明顯改善電機(jī)振動(dòng)和噪聲,同時(shí)電機(jī)的電磁性能也能得到一定程度的優(yōu)化。另外,原電機(jī)定子齒局部飽和程度較高,這會(huì)使氣隙主磁場分布波呈現(xiàn)平頂形狀,這種平頂波形會(huì)產(chǎn)生低階徑向力波,從而加劇電機(jī)的振動(dòng)和噪聲。因此,本文提出一種漏斗形定子齒結(jié)構(gòu),緩解電機(jī)定子齒局部飽和,達(dá)到降低振動(dòng)和噪聲的目的。2.為改善已有容錯(cuò)式永磁磁通切換電機(jī)的振動(dòng)和噪聲,提出了一種新型轉(zhuǎn)子斜齒結(jié)構(gòu)電機(jī),新型轉(zhuǎn)子斜齒電機(jī)在順時(shí)針轉(zhuǎn)動(dòng)和逆時(shí)針轉(zhuǎn)動(dòng)時(shí)會(huì)表現(xiàn)出不同的振噪特性。對原電機(jī)和轉(zhuǎn)子斜齒電機(jī)進(jìn)行有限元分析,比較兩電機(jī)平均轉(zhuǎn)矩、轉(zhuǎn)矩脈動(dòng)和徑向力波。通過結(jié)構(gòu)力學(xué)分析和聲學(xué)仿真分析,比較原電機(jī)和轉(zhuǎn)子斜齒電機(jī)的振動(dòng)和噪聲大小。仿真結(jié)果顯示,轉(zhuǎn)子斜齒電機(jī)在順時(shí)針轉(zhuǎn)動(dòng)時(shí)可以以犧牲少量平均轉(zhuǎn)矩為代價(jià),較大幅度地改善電機(jī)的振動(dòng)和噪聲,而逆時(shí)針轉(zhuǎn)動(dòng)時(shí)則不能達(dá)到降振減噪的目的。本文還分析了兩種轉(zhuǎn)子模塊化電機(jī)對振動(dòng)和噪聲的影響,其中轉(zhuǎn)子齒部開槽模塊化電機(jī)可以以犧牲少量平均轉(zhuǎn)矩為代價(jià),較大幅度改善電機(jī)的振動(dòng)和噪聲。轉(zhuǎn)子軛部開槽模塊化電機(jī)則不能降低電機(jī)的振動(dòng)和噪聲。3.在電機(jī)的實(shí)際加工和安裝過程中,由于受到加工工藝以及裝配精度的限制,可能做不到使得電機(jī)定轉(zhuǎn)子軸線完全重合,那么轉(zhuǎn)子就會(huì)存在不同程度的偏心。當(dāng)容錯(cuò)式永磁磁通切換電機(jī)轉(zhuǎn)子存在靜偏心或動(dòng)偏心時(shí),對電機(jī)的振動(dòng)和噪聲產(chǎn)生影響。分析結(jié)果表明,無論轉(zhuǎn)子存在靜偏心還是動(dòng)偏心,都會(huì)加大電機(jī)的振動(dòng)和噪聲,因此,在電機(jī)實(shí)際制造和安裝過程中,要盡量避免轉(zhuǎn)子偏心情況的發(fā)生。4.對于具有斜齒轉(zhuǎn)子的容錯(cuò)式永磁磁通切換電機(jī),比較了轉(zhuǎn)子不同斜齒角度時(shí)的振動(dòng)噪聲及電磁性能。加工制造轉(zhuǎn)子斜齒電機(jī),并實(shí)驗(yàn)測量原電機(jī)和轉(zhuǎn)子斜齒電機(jī)的振動(dòng)加速度,驗(yàn)證了理論分析的正確性。
[Abstract]:In recent years, the demand for permanent magnet motor is getting higher and higher in modern industry. Vibration and noise become one of the most important indexes to evaluate the performance of the motor. The vibration and noise of permanent magnet motor can not be ignored. Therefore, the research on the mechanism of vibration and noise reduction of permanent magnet motor and its suppression measures As for permanent magnet motor, it is of great significance to improve the vibration and noise of the motor effectively on the premise of ensuring the constant difference between the electromagnetic performance of the motor. In this paper, the influence of several new type of rotor structure on the vibration noise and electromagnetic performance of the 10 slot 18 pole fault tolerant permanent magnetic flux switching motor is proposed and compared. The finite element model of fault tolerant permanent magnetic flux switching motor is constructed, and the structural parameters of the motor are optimized. Then, the influence of the new stator rotor structure on the vibration noise and the electromagnetic performance of the motor is compared. Finally, the original motor, the new rotor helical gear motor and the related hardware control circuits are introduced, and the experimental measurement two is carried out. The research results of this paper mainly include the following aspects: 1. the existing fault tolerant permanent magnetic flux switching motor has the disadvantages of large vibration noise and low sinusoidal anti EMF waveform. In order to improve the motor performance, a new type of stator with double fault-tolerant tooth structure motor is proposed in this paper. The real software compares the electromagnetic properties of the two motor, including the empty back EMF, the average torque, the torque ripple and the radial force wave. The structural mechanics analysis and acoustic simulation analysis of the original and double fault-tolerant teeth motor are carried out to compare the vibration and noise size of the two motor. The motor can obviously improve the vibration and noise of the motor. At the same time, the electromagnetic performance of the motor can be optimized to a certain extent. In addition, the local saturation degree of the stator teeth of the original motor is high, which will make the distribution wave of the main magnetic field of the air gap present flat top shape, and this kind of flat top waveform will produce the low order direction force wave, thus intensifying the vibration and noise of the motor. In this paper, a funnel-shaped stator tooth structure is proposed to alleviate the local saturation of the motor stator teeth and to reduce vibration and noise..2. is to improve the vibration and noise of the existing fault tolerant permanent magnetic flux switching motor. A new type of rotor helical structure motor is proposed. The new rotor helical gear motor will be table in clockwise rotation and counter clockwise rotation. The original motor and rotor helical gear motor are analyzed by finite element analysis, and the average torque, torque ripple and radial force wave of the two motor are compared. Through structural mechanics analysis and acoustic simulation analysis, the vibration and noise size of the original motor and the rotor oblique tooth motor are compared. The simulation results show that the rotor helical gear motor is clockwise in clockwise rotation. At the expense of a small amount of average torque at the expense of a small amount of torque, the vibration and noise of the motor can be greatly improved, while the anti clockwise rotation can not achieve the purpose of reducing vibration and noise reduction. In this paper, the effects of two kinds of rotor modular motors on Vibration and noise are also analyzed, in which the modular motor of the rotor tooth slotting can sacrifice a small amount of average torque. At the cost, the vibration and noise of the motor are greatly improved. The rotor yoke slotting modular motor can not reduce the vibration and noise of the motor..3. can not make the rotor axis completely coincide with the machining process and assembly precision during the actual machining and installation of the motor. Then the rotor will save. When the rotor of fault tolerant permanent magnetic flux switching motor has static eccentricity or dynamic eccentricity, it affects the vibration and noise of the motor. The results show that the vibration and noise of the motor will be increased regardless of the static eccentricity or the dynamic eccentricity. Therefore, it is necessary to avoid the vibration and noise of the motor in the process of actual manufacturing and installation. The occurrence of rotor eccentricity.4. for the fault tolerant permanent magnetic flux switching motor with a helical rotor, compared the vibration noise and electromagnetic performance of the rotor with different angle of the tooth. The rotor helical gear motor was manufactured and the vibration acceleration of the original motor and the rotor oblique tooth motor was measured experimentally, and the correctness of the theoretical analysis was verified.
【學(xué)位授予單位】：江蘇大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM351

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 李巖;李雙鵬;周吉威;李龍女;;基于定子齒削角的近極槽永磁同步電機(jī)振動(dòng)噪聲削弱方法[J];電工技術(shù)學(xué)報(bào);2015年06期

2 張鑫;王秀和;楊玉波;魏蓓;;基于轉(zhuǎn)子齒兩側(cè)開槽的開關(guān)磁阻電機(jī)振動(dòng)抑制方法研究[J];中國電機(jī)工程學(xué)報(bào);2015年06期

3 王建民;讓余奇;;電機(jī)噪聲分析及抑制措施[J];船電技術(shù);2010年08期

4 張冉;王秀和;喬東偉;楊玉波;;基于輔助槽的永磁電機(jī)激振力波削弱方法[J];中國電機(jī)工程學(xué)報(bào);2010年18期

5 譚建成;;無刷直流電動(dòng)機(jī)分?jǐn)?shù)槽集中繞組槽極數(shù)組合選擇與應(yīng)用(連載之四)[J];微電機(jī);2008年03期

6 孫劍波,詹瓊?cè)A,黃進(jìn);開關(guān)磁阻電機(jī)的定子振動(dòng)模態(tài)分析[J];中國電機(jī)工程學(xué)報(bào);2005年22期

7 吳建華;基于物理模型開關(guān)磁阻電機(jī)定子模態(tài)和固有頻率的研究[J];中國電機(jī)工程學(xué)報(bào);2004年08期

8 王旭東,王喜蓮,王炎,李哲生;開關(guān)磁阻電動(dòng)機(jī)電流雙幅值斬波控制[J];中國電機(jī)工程學(xué)報(bào);2000年04期

，

本文編號：2006455