本文選題：TPMLSM + 參數(shù)計算�。� 參考：《山東大學(xué)》2017年碩士論文

【摘要】：石油作為當(dāng)今社會的主要能源之一,采油設(shè)備的研究得到了廣泛的重視。傳統(tǒng)游梁式四連桿結(jié)構(gòu)采油裝置存在中間環(huán)節(jié)多、井桿管偏磨、系統(tǒng)柔性差、效率低等問題。為了改善這些問題,相關(guān)研究人員提出了一種由直線電機直接驅(qū)動抽油泵進(jìn)行往復(fù)抽油的無桿采油系統(tǒng),該種系統(tǒng)不存在井桿管偏磨問題,并且系統(tǒng)效率高,排量調(diào)節(jié)范圍寬、易調(diào)參,可實現(xiàn)短沖程、高沖次。本文對潛油直驅(qū)系統(tǒng)中應(yīng)用的圓筒型永磁直線同步電動機(Tubular Permanent Magnet Linear Synchronous Motor,TPMLSM)進(jìn)行了分析計算、設(shè)計和結(jié)構(gòu)優(yōu)化,主要工作包括以下幾個部分:研究了電機的基本結(jié)構(gòu)和工作原理,基于該電機的特殊結(jié)構(gòu)和工作原理,通過對普通旋轉(zhuǎn)永磁同步電機和直線感應(yīng)電機電磁參數(shù)計算方法的研究,給出了適用于TPMLSM電阻、電抗參數(shù)和初級鐵心損耗的計算公式以及工作特性曲線的計算方法。討論了初級線圈匝數(shù)、永磁體厚度等結(jié)構(gòu)參數(shù)變化對電機性能的影響。利用有限元分析軟件Maxwell建立電機模型,對TPMLSM的氣隙磁場分布、空載反電勢、初級三相電流和電機過載能力等性能進(jìn)行分析,經(jīng)過傅里葉分解后,得到其基波和各次主要諧波分量。通過比較不同結(jié)構(gòu)參數(shù)下的電機性能指標(biāo),得出了結(jié)構(gòu)參數(shù)變化對TPMLSM性能的影響規(guī)律,從而確定較優(yōu)結(jié)構(gòu),以達(dá)到優(yōu)化電機的目的。對電機的齒槽力進(jìn)行了分析,首先通過解析法研究了 TPMLSM的齒槽力,得到了齒槽力的解析表達(dá)式。其次,利用有限元法通過改變槽口寬度、氣隙不均勻程度、磁極極弧系數(shù)等措施削弱齒槽效應(yīng),研究了各影響因素對電機齒槽力的影響規(guī)律。這為減小齒槽力,抑制電機輸出力波動,從而使電機能夠穩(wěn)定運行提供了參考依據(jù)。根據(jù)電機各項性能指標(biāo)要求,以及結(jié)構(gòu)優(yōu)化和齒槽力分析結(jié)果,確定了電機設(shè)計的主要參數(shù)。利用有限元軟件建模,進(jìn)行仿真計算,得到了所設(shè)計電機的磁密分布以及帶額定負(fù)載運行時性能曲線。在滿足電機設(shè)計要求的前提下,制造了樣機,進(jìn)行樣機試驗,并將樣機試驗結(jié)果與有限元仿真結(jié)果進(jìn)行比較驗證。驗證結(jié)果表明,電機符合設(shè)計要求。利用Maxwell分別建立不同初級鐵心材料(硅鋼片、軟磁復(fù)合材料)下的TPMLSM有限元仿真模型,在此基礎(chǔ)上,對比分析了以硅鋼片為鐵心材料的TPMLSM和以軟磁復(fù)合材料鐵心材料的TPMLSM的氣隙徑向磁密分布和空載反電勢,并對兩種鐵心材料電機的帶額定負(fù)載運行的性能曲線進(jìn)行分析。比較結(jié)果表明,軟磁復(fù)合材料應(yīng)用于TPMLSM是可行的。
[Abstract]:As one of the main energy sources, the research of oil recovery equipment has been paid more and more attention. There are many problems in the traditional four-bar structure oil recovery device, such as many intermediate links, eccentric wear of shaft rod and pipe, poor system flexibility and low efficiency, etc. In order to improve these problems, the researchers put forward a kind of rod free oil recovery system which is driven directly by linear motor to pump reciprocating oil. The system does not have the problem of rod pipe bias wear, and the system has high efficiency and wide range of displacement regulation. Easy to adjust parameters, can achieve short stroke, high impact times. In this paper, the cylindrical permanent magnet linear synchronous motor (tubulular Permanent Magnet Linear Synchronous Motor TPMLSM) used in submersible direct drive system is analyzed, calculated, designed and optimized. The main work includes the following parts: the basic structure and working principle of the motor are studied. Based on the special structure and working principle of the motor, through the study of the calculation method of the electromagnetic parameters of the ordinary rotating permanent magnet synchronous motor and the linear induction motor, the TPMLSM resistance is given. The formula of reactance parameter and loss of primary iron core and the calculation method of working characteristic curve. The influence of structural parameters such as the number of turns of primary coil and the thickness of permanent magnet on the performance of motor is discussed. By using the finite element analysis software Maxwell, the motor model is established, and the air gap magnetic field distribution, the no-load back EMF, the primary three-phase current and the overload capacity of the motor are analyzed. The fundamental wave and the main harmonic components are obtained. By comparing the performance indexes of the motor with different structure parameters, the influence of structural parameters on the performance of TPMLSM is obtained, so as to determine the better structure and achieve the purpose of optimizing the motor. The slotting force of the motor is analyzed. Firstly, the tooth groove force of TPMLSM is studied by analytical method, and the analytical expression of the slot force is obtained. Secondly, the slot effect is weakened by changing slot width, air gap inhomogeneity, magnetic pole arc coefficient and so on. This provides a reference for reducing the tooth groove force, restraining the fluctuation of the output force of the motor and making the motor operate stably. The main parameters of the motor design are determined according to the performance requirements of the motor and the results of the structural optimization and the analysis of the tooth groove force. The magnetic density distribution of the designed motor and the performance curve of the motor with rated load are obtained by using finite element software modeling and simulation. On the premise of satisfying the requirements of motor design, the prototype is manufactured, the prototype test is carried out, and the results of the prototype test are compared with the finite element simulation results. The results show that the motor meets the design requirements. The TPMLSM finite element simulation models of different primary core materials (silicon steel sheet, soft magnetic composite material) were established by Maxwell. The air gap radial magnetic density distribution and no-load reverse EMF of TPMLSM with silicon steel as core material and TPMLSM with soft magnetic composite core material are compared and analyzed. The performance curves of two kinds of iron core motor with rated load are analyzed. The results show that the application of soft magnetic composites to TPMLSM is feasible.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE933.3;TM341

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相關(guān)碩士學(xué)位論文 前2條

1 曾文欣;油井柱塞泵用永磁直線同步電動機設(shè)計研究[D];山東大學(xué);2017年

2 雷學(xué)國;磁浮列車間隙傳感器齒槽效應(yīng)補償研究[D];西南交通大學(xué);2010年

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本文編號：1943488