本文選題：永磁同步直線電機　切入點：關鍵結構參數(shù)擾動　出處：《安徽大學》2017年碩士論文

【摘要】：現(xiàn)代制造業(yè)需要更高的加工質量,高質量的產品是企業(yè)追求的目標,也是用戶的要求,更是一個國家制造業(yè)水平的體現(xiàn)。機床的制造精度,直接決定著產品的質量。與傳統(tǒng)的旋轉電機加同步帶和旋轉電機加滾珠絲杠相比,直線電機可以直接實現(xiàn)直線往復運動,少了中間旋轉往復運動到直線往復運動的轉化裝置,越來越多的應用于兩軸數(shù)控機床,提高機床加工精度。因為直線電機本身的特殊結構,使得電機氣隙磁密非正弦;由于永磁體、電樞線圈、氣隙等關鍵結構參數(shù)擾動,這些都影響著電機的輸出性能,限制直線電機的發(fā)展。本課題研究了一種基于特定工況要求的永磁同步直線電機關鍵結構參數(shù)擾動范圍逆向計算方法,計算出了應用于激光雕刻機的直線電機關鍵結構參數(shù)極限尺寸,指導直線電機設計過程公差帶的選取。首先,采用等效磁路法推導電機輸出性能,確定關鍵結構參數(shù);其次,關鍵結構參數(shù)話掃描的方法對電機關鍵結構優(yōu)化,選取電機的公稱尺寸;再次,以應用于激光雕刻機為工況要求,逆向計算直線電機極限尺寸,并對極限尺寸進行性能驗證;最后,以直線電機極限尺寸制作電機,測試電機性能,驗證極限尺寸選取正確。具體開展了如下幾個方面的研究:(1)介紹了直線電機國內外研究現(xiàn)狀、PMLSM工作原理、PMLSM關鍵結構,綜述了國內國外學者對直線電機關鍵結構參數(shù)擾動對直線電機性能的影響的研究現(xiàn)狀,最后給出了本課題的主要研究內容。(2)搭建了直線電機等效磁路模型,解析了電機的輸出性能,并以電機輸出性能為依據(jù)確定了對直線電機性能影響較大的三個關鍵結構。結合實際制作加工中可能出現(xiàn)的擾動情況,具體的分析了關鍵結構參數(shù)擾動情況下對直線電機輸出性能的影響。(3)介紹了軟件自帶電機優(yōu)化功能參數(shù)化掃描,并對電機的三個關鍵結構參數(shù)進行單一結構參數(shù)參數(shù)化以及多結構參數(shù)正交化掃描,以直線電機推力波動率這一輸出性能參數(shù)最低為依據(jù),確定電機最優(yōu)性能參數(shù),即直線電機的公稱尺寸。(4)搭建了直線電機動子模塊的運動方程,以應用于激光雕刻機這一工況為要求,計算電機輸出性能極限范圍;以該工況下直線電機極限輸出性能為依據(jù),合成直線電機推力波動和關鍵結構參數(shù)的二階回歸方程,逆向計算該極限性能條件對應的直線電機極限尺寸,并仿真驗證極限尺寸直線電機性能。(5)按照逆向計算的直線電機極限尺寸制造電機零件,組裝電機,測量電機關鍵結構尺寸。搭建直線電機測試平臺,包括空載反電動勢和推力測試兩部分,測試直線電機輸出性能,并對電機空載反電勢和推力進行離線數(shù)據(jù)處理。結果表明:基于特定工況要求的直線電機關鍵結構參數(shù)擾動范圍逆向計算這一方法的研究,對于一臺直線電機,設計時選取電機公稱尺寸以及極限尺寸,指導電機制作過程,對電機的質量意義重大。
[Abstract]:Modern manufacturing requires higher machining quality, high quality products is the goal of the enterprise, but also the requirements of users, but also reflects the level of a country's manufacturing industry. The manufacturing precision of the machine tool, directly determines the quality of the products. With the traditional rotating motor and synchronous belt and rotary motor and ball screw compared linear motor, can achieve the linear reciprocating motion conversion device less intermediate rotary reciprocating motion into linear reciprocating motion, more and more applications in the two axis NC machine tools, improve the machining accuracy of machine tool. Because of the special structure of the linear motor itself, the motor air gap magnetic flux density due to non sinusoidal; permanent magnets, armature coil, disturbance the key structure parameters such as air gap, which affect the output performance of the motor, limit the development of the linear motor. The research of a permanent magnet specific conditions based on the requirements of synchronous linear motor key The reverse calculation method of perturbation range of structure parameter, the key structural parameters of the linear motor is applied to limit the size of laser engraving machine, direct linear motor design process with the tolerance selection. Firstly, using the theory of equivalent magnetic circuit of motor output performance, determine the key structure parameters; secondly, method of key structure parameters on the motor structure key words scanning optimization of selected nominal size motor; thirdly, the laser engraving machine is applied to the calculation of linear motor reverse conditions required to limit the size and to verify the performance limit of size; finally, making linear motor motor to limit the size of the motor performance test, verify the limit size selection is correct. To carry out specific studies as follows: (1) introduces the research status of the linear motor at home and abroad, the working principle of PMLSM, the key structure of PMLSM, summarizes the domestic and foreign scholars on the key node of linear motor Research status of constitutive parameters disturbance of the linear motor performance. Finally, the main research contents of this paper are given. (2) to build a linear motor equivalent magnetic circuit model. The output performance of the motor and the motor output performance analysis, as the basis to determine the impact of the three key structure of large linear motor combined with the actual performance. The disturbance situation may arise in the process of production, analyzes the key parameters affecting the output performance of the linear motor disturbances. (3) introduced the software optimization function of parametric scanning motor, and three key structure parameters on the motor structure parameters of single and multi parameters of Orthogonal Scanning. With the linear motor thrust fluctuation rate of the output parameters of the lowest as the basis, to determine the optimal motor performance parameters, namely linear motor nominal size. (4) build a straight line electric motor The equations of motion of sub modules, the application in laser engraving machine in this condition, the calculation of the motor output performance limits; to limit the output performance of the linear motor under such conditions as the basis, the two order regression equation for synthesis of linear motor thrust fluctuation and the key structural parameters of the reverse calculation of linear motor limit the size of the limit condition of the corresponding performance verify, limit the size of linear motor performance and simulation. (5) according to the linear motor limit the size of the reverse calculation of motor parts manufacturing, motor assembly, measuring key structure of motor size was set up. The linear motor test platform, including two parts of back EMF and thrust test, test of linear motor output performance, and the no-load back EMF and thrust for off-line data processing. The results show that the parameters of the key structure of linear motor specific conditions required the perturbation range of reverse calculation methods in this research based on In the case of a linear motor, it is of great significance to the quality of the motor to select the nominal size and the limit size of the motor and guide the process of the motor.

【學位授予單位】：安徽大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM359.4

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