分數(shù)槽集中繞組永磁電機研究
本文關(guān)鍵詞:分數(shù)槽集中繞組永磁電機研究 出處:《東南大學(xué)》2015年碩士論文 論文類型:學(xué)位論文
更多相關(guān)文章: 永磁電機 分數(shù)槽集中繞組 極槽配合 齒槽轉(zhuǎn)矩 不平衡磁拉力
【摘要】:永磁電機具有體積小、效率高和功率因數(shù)高等優(yōu)點,可廣泛地應(yīng)用于各種工業(yè)場合。隨著近些年新型永磁材料的出現(xiàn)和大型永磁電機制造技術(shù)的不斷發(fā)展,永磁電機單機容量不斷增加。然而,在低速應(yīng)用場合,傳統(tǒng)的整數(shù)槽分布繞組永磁電機缺點逐漸凸顯,因極數(shù)較多導(dǎo)致槽數(shù)很多,設(shè)計加工難度加大,再考慮到分布繞組端部較長,因此分數(shù)槽集中繞組在永磁電機中受到越來越多的關(guān)注和采用。本文針對分數(shù)槽集中繞組永磁電機的繞組理論、電磁設(shè)計、齒槽轉(zhuǎn)矩和不平衡磁拉力開展研究,對于提高這類電機的設(shè)計水平并促進其應(yīng)用具有重要的意義。論文內(nèi)容主要分為以下幾個部分:1、分數(shù)槽集中繞組理論研究。主要介紹了分數(shù)槽集中繞組的構(gòu)成條件,提出了一種針對分數(shù)槽集中繞組在采用單、雙層繞組連接時的繞組排列方法。對任意分數(shù)槽集中繞組電機,通過所提出的方法均可完成其繞組排列。通過電勢法和公式法分別對分數(shù)槽集中繞組電機在采用單、雙層繞組排列下的繞組系數(shù)進行計算。2、分析了多槽多極非單元永磁電機與其單元電機的內(nèi)在聯(lián)系,以其中衍生的非單元永磁電機個數(shù)較多且電機繞組因數(shù)較高的9槽分數(shù)槽集中繞組單元電機為研究對象,進行了電機的本體設(shè)計和電磁性能分析。編寫了分數(shù)槽集中繞組永磁電機電磁設(shè)計軟件,提高了電機設(shè)計的效率。3、圍繞9槽分數(shù)槽集中繞組單元電機的齒槽轉(zhuǎn)矩開展研究,闡述了其形成機理,并推導(dǎo)解析表達式;研究了9槽8極單元電機與其衍生的非單元電機齒槽轉(zhuǎn)矩的內(nèi)在聯(lián)系;重點從極槽配合、槽口寬度、極弧系數(shù)、輔助槽等電機具體參數(shù),展開對齒槽轉(zhuǎn)矩的影響分析。4、圍繞9槽分數(shù)槽集中繞組單元電機的不平衡磁拉力開展研究,闡述了其形成機理,并推導(dǎo)解析表達式;研究了9槽8極單元電機與其衍生的非單元電機不平衡磁拉力的內(nèi)在聯(lián)系;著重從不同負載情況、極槽配合、槽口寬度等電機具體參數(shù),展開對不平衡磁拉力的影響分析。
[Abstract]:Permanent magnet motor has the advantages of small size, high efficiency and high power factor. It can be widely used in various industrial occasions. With the emergence of new permanent magnet materials and the continuous development of manufacturing technology of large permanent magnet motor in recent years. The single machine capacity of permanent magnet motor is increasing. However, in low speed application, the shortcomings of traditional integer slot distribution winding permanent magnet motor become more and more obvious. Because of the number of poles, there are many slots, so the design and processing are more difficult. Considering the long end of the distributed winding, the fractional slot concentrated winding has been paid more and more attention and adopted in the permanent magnet motor. This paper aims at the winding theory of the fractional slot concentrated winding permanent magnet motor, electromagnetic design. The research of tooth slot torque and unbalanced magnetic pull is of great significance to improve the design level of this kind of motor and promote its application. The main content of this paper is divided into the following parts: 1. This paper mainly introduces the composing conditions of fractional slot concentrated winding, and puts forward a single one for fractional slot concentrated winding. Method of winding arrangement in connection of double-layer windings. Concentrated winding motor with arbitrary fractional slot. The winding coefficient of fractional slot concentrated winding motor with single or double winding arrangement is calculated by the method of EMF and formula. 2. The relationship between multi-slot multi-pole non-unit permanent magnet motor and its unit motor is analyzed. The research object is 9-slot fractional slot concentrated winding unit motor which has more non-unit permanent magnet motor and higher winding factor. The main body design and electromagnetic performance analysis of the motor are carried out, and the electromagnetic design software of the fractional slot concentrated winding permanent magnet motor is developed, which improves the efficiency of the motor design. 3. Based on the research of the torque of the gear slot of the 9-slot fractional slot concentrated winding unit motor, the formation mechanism of the motor is expounded, and the analytical expression is derived. The internal relationship between 9-slot 8-pole unit motor and its non-unit motor tooth slot torque is studied. Focusing on the pole slot fit, slot width, arc coefficient, auxiliary slot and other specific parameters of the motor, the impact of the gear slot torque analysis .4. The unbalance magnetic pull force of a 9-slot fractional slot concentrated winding unit motor is studied, its formation mechanism is expounded, and an analytical expression is derived. The internal relation between 9-slot 8-pole unit motor and the unbalance magnetic pull force derived from the non-unit motor is studied. The influence of different load, pole slot fit and slot width on the unbalanced magnetic pull force is analyzed.
【學(xué)位授予單位】:東南大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TM341
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