组合机床与自动化加工技术
組閤機床與自動化加工技術
조합궤상여자동화가공기술
MODULAR MACHINE TOOL & AUTOMATIC MANUFACTURING TECHNIQUE
2015年
4期
24-28
,共5页
永磁同步电主轴%内置式%表面式%永磁体,磁极结构
永磁同步電主軸%內置式%錶麵式%永磁體,磁極結構
영자동보전주축%내치식%표면식%영자체,자겁결구
permanent magnet synchronous electric spindle%interior magnet%surface mount magnet%per-manent magnet%magnetic pole configuration
永磁同步电主轴设计的关键因素之一是如何确定产生所需气隙磁密的永磁体的尺寸。传统的永磁体尺寸设计采用经验公式估算，不具有准确性。文章阐述不同磁体尺寸对三种磁极结构径向磁通永磁同步电主轴气隙磁密的影响。借助于三种磁极结构的静态有限元模型仿真，揭示出永磁体体积和产生磁通的永磁体面积之间的直接关系。因此，一旦确定了最小永磁体体积，就可以很容易的计算出产生磁通的永磁体面积。此技术也可用来设计转子截面积有限的异步启动永磁同步电主轴。
永磁同步電主軸設計的關鍵因素之一是如何確定產生所需氣隙磁密的永磁體的呎吋。傳統的永磁體呎吋設計採用經驗公式估算，不具有準確性。文章闡述不同磁體呎吋對三種磁極結構徑嚮磁通永磁同步電主軸氣隙磁密的影響。藉助于三種磁極結構的靜態有限元模型倣真，揭示齣永磁體體積和產生磁通的永磁體麵積之間的直接關繫。因此，一旦確定瞭最小永磁體體積，就可以很容易的計算齣產生磁通的永磁體麵積。此技術也可用來設計轉子截麵積有限的異步啟動永磁同步電主軸。
영자동보전주축설계적관건인소지일시여하학정산생소수기극자밀적영자체적척촌。전통적영자체척촌설계채용경험공식고산，불구유준학성。문장천술불동자체척촌대삼충자겁결구경향자통영자동보전주축기극자밀적영향。차조우삼충자겁결구적정태유한원모형방진，게시출영자체체적화산생자통적영자체면적지간적직접관계。인차，일단학정료최소영자체체적，취가이흔용역적계산출산생자통적영자체면적。차기술야가용래설계전자절면적유한적이보계동영자동보전주축。
One of the key factors of the permanent magnet synchronous electric spindle ( PMSES) in the de-sign is how to determine the size of the permanent magnet ( PM) to produce the required air gap flux densi-ty. It is not accurate for traditional design to use empirical formula to estimate permanent magnet size. This paper describes the effect of different sizes of the PM on the air gap flux density in three radial flux PMSES magnetic pole configurations. A direct relationship is shown between magnet volume and magnet area pro-duced flux by static finite element model simulations of the three magnetic pole configurations. Therefore, once the minimum magnet volume has been determined, the magnet area produced flux can be calculated. This technique can also be used for the design of line start PMSES which the rotor cross sectional area is lim-ited.
