【正文】
銅重、電樞齒重、電樞軛重、銅線總重、硅鋼片重、磁極鋼片重都增加了,重量的增加使得齒和軛的鐵耗增加,但是由于線規(guī)截面積的增加使得電樞繞組銅耗還有勵(lì)磁損耗大大降低,這就使效率得到了有效的提高。綜上所述,在同步電動(dòng)機(jī)的設(shè)計(jì)過(guò)程中要綜合整體方面的要求,照顧到全方面的利益,最終確定符合要求的方案。第七章 AUTO CAD 繪圖計(jì)算機(jī)輔助繪圖軟件AutoCAD是一種常用的繪圖軟件,利用它作圖的便捷性,我們可以很快地畫(huà)出需要的圖形;利用它的精確性,可以保證所作圖形的精度,并可以直接應(yīng)用到實(shí)際生產(chǎn)中。在這里我將使用AUTO CAD 2007繪制定子沖片圖,轉(zhuǎn)子沖片圖,電樞繞組圖。在使用AUTO CAD 2007繪圖中,需要以下操作來(lái)完成繪圖工作。了解關(guān)鍵用戶界面組件;創(chuàng)建新圖形并打開(kāi)已有圖形;平移和縮放圖形,創(chuàng)建和恢復(fù)命名視圖;通過(guò)確定點(diǎn)和線創(chuàng)建二維幾何圖形;從基本幾何圖形創(chuàng)建對(duì)象,諸如圓、橢圓、矩形、多線段、圓弧、樣條曲線和構(gòu)造線;理解圖層并使用圖層特性管理器來(lái)創(chuàng)建圖層和修改它們的特性;使用不同的方法來(lái)選擇要編輯的對(duì)象;通過(guò)使用復(fù)制、修剪、延伸、偏移、倒角、圓角、陣列、多段線編輯、鏡像和拉伸來(lái)編輯和修改對(duì)象以創(chuàng)建幾何圖形;使用夾點(diǎn)編輯對(duì)象;使用文本樣式創(chuàng)建文本,并利用填充樣式和漸變填充來(lái)增強(qiáng)圖形效果;通過(guò)使用標(biāo)注樣式來(lái)對(duì)圖形進(jìn)行尺寸標(biāo)注;使用查詢命令計(jì)算面積、周長(zhǎng)和質(zhì)量特性,并顯示對(duì)象的數(shù)據(jù)庫(kù)信息;通過(guò)使用快和外部塊,共享和再利用圖形。工具選項(xiàng)板和設(shè)計(jì)中心的設(shè)計(jì)內(nèi)容,并再同一AUTOCAD工作期間處理多個(gè)圖形;從模型或布局空間輸出圖形到繪圖儀作為硬拷貝;、轉(zhuǎn)子沖片圖的繪制在對(duì)定子沖片的繪制過(guò)程中,通過(guò)自己平時(shí)對(duì)CAD的了解,慢慢的熟悉了CAD中的各種操作的作用,有根據(jù)對(duì)自己設(shè)計(jì)的同步電動(dòng)機(jī)的認(rèn)識(shí),基本上知道了定轉(zhuǎn)子沖片的各種參數(shù),在繪制的過(guò)程遇到過(guò)困難,主要時(shí)對(duì)繪制圖形不是很熟練造成的,只要對(duì)電動(dòng)機(jī)的定轉(zhuǎn)子的結(jié)構(gòu)和參數(shù)好好的了解了,再經(jīng)過(guò)有耐心的學(xué)習(xí)CAD繪圖,感覺(jué)到還是很有收獲的。圖 定子沖片圖 轉(zhuǎn)子沖片圖 單相繞組圖三相繞組圖第八章 設(shè)計(jì)總結(jié)在這次的變頻調(diào)速同步電動(dòng)機(jī)控制系統(tǒng)及其電磁計(jì)算設(shè)計(jì)的過(guò)程中,我學(xué)到了很多的內(nèi)容,這些東西是單純從課本上學(xué)不到的,感受很多。在設(shè)計(jì)過(guò)程中確實(shí)遇到了很多的麻煩,在剛開(kāi)始的時(shí)候由于這方面的知識(shí)不多,所以走了很多的彎路,現(xiàn)在想起來(lái)是由于思路不明確導(dǎo)致的。在理清了思路后便開(kāi)始著手設(shè)計(jì)計(jì)算了,在計(jì)算的時(shí)候?qū)ν诫妱?dòng)機(jī)的各種參數(shù)的認(rèn)識(shí)理解還是有所欠缺,這就導(dǎo)致不能很好的把握住問(wèn)題的重點(diǎn)所在,不如在定子槽形的確定過(guò)程中,由于要符合槽滿率的要求,在這部份的設(shè)計(jì)中便反反復(fù)復(fù)的修改槽型,當(dāng)時(shí)覺(jué)得很費(fèi)事用沒(méi)有什么用處但現(xiàn)在看來(lái)這部分是最有意義的,因?yàn)椴粌H鍛煉了我們解決問(wèn)題的能力,還培養(yǎng)了我們的耐心。有比如在線規(guī)的選取上,要綜合方方面面的要求,而不能偏向于哪一方,因?yàn)槊恳粋€(gè)參數(shù)都有可能牽涉到很多的設(shè)計(jì)參數(shù)的計(jì)算,一旦學(xué)則錯(cuò)誤很可能導(dǎo)致很多的步驟都要重新計(jì)算。在對(duì)三個(gè)方案的設(shè)計(jì)中,我們可以清楚的學(xué)習(xí)到什么參數(shù)會(huì)影響到同步電動(dòng)機(jī)的哪一種性能,通過(guò)改變這些的參數(shù)便可以對(duì)電機(jī)的性能作出調(diào)整,從而設(shè)計(jì)出自己覺(jué)得符合設(shè)計(jì)目的的同步電動(dòng)機(jī)。畢業(yè)設(shè)計(jì)是考察一個(gè)同學(xué)在大學(xué)中所學(xué)而設(shè)的,考察的東西不僅僅包括書(shū)本上的知識(shí),還有我們?cè)谟龅絾?wèn)題時(shí),面對(duì)問(wèn)題、解決問(wèn)題的能力,是一個(gè)把理論運(yùn)用到實(shí)踐過(guò)程。我們可以好好的利用這次機(jī)會(huì)來(lái)檢驗(yàn)鍛煉一下我們科學(xué)研究的能力,在遇到問(wèn)題時(shí)我們要養(yǎng)成良好的習(xí)慣,學(xué)會(huì)運(yùn)用身邊的工具,如書(shū)本,老師,同學(xué),資料庫(kù)等一切可以利用的資源來(lái)為我們服務(wù),來(lái)解決問(wèn)題。我們還要養(yǎng)成嚴(yán)謹(jǐn)?shù)膶W(xué)習(xí)、工作的態(tài)度,不論什么時(shí)候都馬虎不得,嚴(yán)謹(jǐn)務(wù)實(shí)是工作中的基本要求,只有這樣我們才能虛心學(xué)習(xí),更進(jìn)一步。 參考文獻(xiàn)[1] 《電動(dòng)機(jī)原理與實(shí)用技術(shù)》 王益全編著 科學(xué)出版社2005[2] 《電機(jī)控制》 徐大中 賀益康編著 浙江大學(xué)出版社2002[3] 《交流電機(jī)動(dòng)態(tài)分析》 湯蘊(yùn) 張奕黃 范瑜編著 機(jī)械工業(yè)出版社 2004[4] 《交流電機(jī)變頻調(diào)速及其應(yīng)用》 張承慧 李珂編著 機(jī)械工業(yè)出版社 2008[5] 《AUTOCAD2004 入門與提高》 張躍峰等編 清華大學(xué)出版社[6] 《電機(jī)設(shè)計(jì)》 陳世坤編 機(jī)械工業(yè)出版社[7] 《電機(jī)學(xué)》 李發(fā)海 朱東起編著 科學(xué)出版社 2001[8] 《電路》邱關(guān)源編著 華中科技大學(xué)大學(xué)出版社 2006[9] 電機(jī)工程手冊(cè). 北京:機(jī)械工業(yè)出版社,1996.[10] 上海電器科學(xué)研究所《中小型電機(jī)手冊(cè)》:機(jī)械工業(yè)出版社,1994[11] 《交流電機(jī)及其系統(tǒng)的分析》 高景德 李發(fā)海編著 清華大學(xué)出版社 2005[12] 《現(xiàn)代新型無(wú)刷勵(lì)磁同步電動(dòng)機(jī)的設(shè)計(jì)及應(yīng)用》 李幼倩編著 機(jī)械工業(yè)出版社2009[13] 《電動(dòng)機(jī)控制》 黃立培主編 清華大學(xué)出版社 2003[14] 《電機(jī)學(xué)》 戴文進(jìn) 徐龍權(quán)編著 清華大學(xué)出版社 2008致謝在這幾個(gè)月的學(xué)習(xí)當(dāng)中,我感受很多,首先要謝謝黃老師和師哥師姐們的細(xì)心幫助,是他們不厭其煩的關(guān)懷才使我能夠比較順利的完成了這次設(shè)計(jì)。同時(shí)你們也讓我也發(fā)現(xiàn)了自己的很多不足。我會(huì)更加努力,爭(zhēng)取更進(jìn)一步。通過(guò)這次的畢業(yè)設(shè)計(jì)的鍛煉,我感覺(jué)到我們還應(yīng)該端正態(tài)度,我們現(xiàn)在的知識(shí)其實(shí)還是很不夠的,要養(yǎng)成正確的人生態(tài)度、生活態(tài)度和學(xué)習(xí)態(tài)度,總之態(tài)度決定一切。外文翻譯Linear Matrix InequalityBased Fuzzy Control for Interior Permanent Magnet Synchronous Motor with integral sliding mode controlFaGuang Wang, Seung Kyu Park, Ho Kyun AhnDepartment of Electrical Engineering, Changwon National University, KoreaAbstractRecently, interior permanent magnet synchronous motor (IPMSM) is widely used in various applications, such as electric vehicles and pressors. It has a high requirement in wide load variations, high speed condition, stability, providing a fast response and most important thing is that it can be applied easily and efficiently. However, the control of IPMSM is more difficult than surface permanent magnet synchronous motor (SPMSM) because its nonlinearity due to the nonzero daxis current which can be zero in SPSM but not IPMSM. In this paper, the IPMSM is controlled very efficient algorithm by using the bination of linear control and fuzzy control with linear models depending on certain operating points. The H∞ linear matrix inequality (LMI) based integral sliding mode control is also used to ensure the robustness. The membership functions of this paper are easy to be determined and implemented easily. Index TermsFuzzy control, H∞ control, integral sliding mode control, interior permanent magnet synchronous motor (IPMSM), linear matrix inequality.I. INTRODUCTIONFrom 1980s’, with the development of semiconductor, IPMSM supplied by converter source has been widely studied [1] [2]. The development of microputer made the vector control system of IPMSM well controlled by single chip. IPMSM possesses special features for adjustablespeed drives which distinguish it from otherclasses of ac machines, especially surface permanent magnet synchronous motor. The main criteria of high performance drives are fast and accurate speed response, quick recovery of speed from any disturbances and insensitivity to parameter variations [3]. In order to achieve high performances, the vector control of IPMSM drive is employed [4][6]. Control techniques bee plicated due to the nonlinearities of the developed torque for nonzero value of daxis current. Many researchers have focused their attention on forcing the daxis current equals to zero in the vector control of IPMSM drive, which essentially makes the motor model linear [4],[7]. However, in realtime the electromagnetic torque is nonlinear in nature. In order to incorporate the nonlinearity in a practical IPMSM drive, a control technique known as maximum torque per ampere (MTPA) is devised which provides maximum torque with minimum stator current [3]. This MTPA strategy is very important from the limitation of IPMSM and inverter rating points of view, which optimizes the drive efficiency. The problem associated MTPA control technique is that its implementation in real time bees plicated because there exists a plex relationship between daxis and qaxis currents. Thus, one of the main objectives of this paper is to make a new efficient control method for IPMSM and its calculation easy and efficient. The LMI fuzzy H∞ control has been applied and solved the nonlinearity of the IPMSM model to a set of linear model. To increase the robustness for disturbances, an ISMC technique is added to the H∞ controller. By ISMC, the proposed controller gives performances of the H∞ control system without disturbances which satisfy the matching condition. It has a good patible with linear controllers. TS fuzzy control [8] is based on the mathematical model which is the bination of local linear models depending on the operating points. Linear controllers a