本文關(guān)鍵詞： 直線電機(jī)垂直運(yùn)輸系統(tǒng) 永磁直線同步電機(jī) 推力波動(dòng) 繞組結(jié)構(gòu) 模塊化　出處：《浙江大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：當(dāng)前,垂直運(yùn)輸系統(tǒng)已經(jīng)被廣泛應(yīng)用于生產(chǎn)生活中。相較于傳統(tǒng)垂直運(yùn)輸系統(tǒng),由直線電機(jī)驅(qū)動(dòng)的運(yùn)輸系統(tǒng)由于其空間利用率高,速度快,效率高以及提升高度無(wú)限制等優(yōu)勢(shì),受到學(xué)者的廣泛關(guān)注與研究。而永磁直線同步電機(jī)(PMLSM)由于其較高推力密度與優(yōu)良的驅(qū)動(dòng)控制性能,成為最適合應(yīng)用于垂直運(yùn)輸系統(tǒng)中的直線電機(jī)。本文針對(duì)PMLSM垂直運(yùn)輸系統(tǒng)推力波動(dòng)大的缺點(diǎn),從電機(jī)結(jié)構(gòu)優(yōu)化設(shè)計(jì)角度對(duì)其進(jìn)行了深入研究。 首先,基于磁化強(qiáng)度法、能量法以及許克變換法,建立了表貼式PMLSM電磁推力與定位力波動(dòng)的解析計(jì)算模型,分析了PMLSM推力波動(dòng)產(chǎn)生的原因與變化規(guī)律,為進(jìn)一步電機(jī)結(jié)構(gòu)優(yōu)化提供了參考。隨后,針對(duì)特定的垂直運(yùn)輸系統(tǒng)使用條件,詳細(xì)闡述了一臺(tái)PMLSM初始參數(shù)的設(shè)計(jì)方法,同時(shí),在總結(jié)現(xiàn)有PMLSM優(yōu)化設(shè)計(jì)方法的基礎(chǔ)上,給出了適用于垂直運(yùn)輸系統(tǒng)中的優(yōu)化方法,使得優(yōu)化后的電機(jī)推力波動(dòng)大大減小,滿足了系統(tǒng)的使用要求。 此外,本文還通過(guò)有限元計(jì)算分析了兩種不同繞組形式的PMLSM在垂直運(yùn)輸系統(tǒng)中使用時(shí)驅(qū)動(dòng)性能與制動(dòng)性能的差異,發(fā)現(xiàn)相較于雙層疊繞組結(jié)構(gòu),集中式繞組結(jié)構(gòu)電機(jī)具有更好的驅(qū)動(dòng)性能,但擁有制動(dòng)力不足的缺點(diǎn)�？紤]到實(shí)際系統(tǒng)中擁有機(jī)械抱閘裝置,故集中式繞組為垂直運(yùn)輸系統(tǒng)的優(yōu)先選擇。 最后,針對(duì)垂直運(yùn)輸系統(tǒng)電機(jī)安裝維護(hù)困難、制造成本高的缺點(diǎn),本文提出了一種新型的繞組分段式PMLSM結(jié)構(gòu),該結(jié)構(gòu)實(shí)現(xiàn)了電機(jī)的模塊化生產(chǎn)與安裝,提高了驅(qū)動(dòng)性能與散熱性能。通過(guò)樣機(jī)制造與測(cè)試,驗(yàn)證了該模塊化結(jié)構(gòu)的正確性與可行性。
[Abstract]:At present, vertical transportation system has been widely used in production and life. Compared with traditional vertical transportation system, the transportation system driven by linear motor has the advantages of high space utilization, high speed, high efficiency and unlimited elevation. The permanent magnet linear synchronous motor (PMLSM) has high thrust density and excellent drive and control performance. It is the most suitable linear motor for vertical transportation system. Aiming at the disadvantage of large thrust fluctuation of PMLSM vertical transportation system, this paper makes a thorough study on it from the point of view of the optimum design of the motor structure. Firstly, based on magnetization method, energy method and Schulk transform method, an analytical calculation model of electromagnetic thrust and positioning force fluctuation of PMLSM is established, and the cause and variation law of PMLSM thrust fluctuation are analyzed. This paper provides a reference for further optimization of motor structure. Then, according to the specific use conditions of vertical transportation system, the design method of initial parameters of a PMLSM is elaborated in detail. At the same time, based on the summary of existing PMLSM optimization design methods, The optimization method suitable for vertical transportation system is presented, which can reduce the thrust fluctuation of the motor after optimization and meet the requirements of the system. In addition, the difference between driving performance and braking performance of two kinds of PMLSM with different windings in vertical transportation system is analyzed by finite element method. The centralized winding structure motor has better driving performance, but has the shortcoming of insufficient braking force. Considering the mechanical locking device in the actual system, centralized winding is the preferred choice of vertical transportation system. Finally, aiming at the disadvantages of difficult installation and maintenance and high manufacturing cost of the motor in vertical transportation system, a novel winding segmented PMLSM structure is proposed in this paper, which realizes the modular production and installation of the motor. The driving performance and heat dissipation performance are improved. The correctness and feasibility of the modular structure are verified by prototype manufacture and test.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM341

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本文編號(hào)：1504078