本文關鍵詞：六相磁通切換型永磁電機的分析與設計　出處：《東南大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 磁通切換 多相 永磁電機 有限元 電機設計 容錯控制

【摘要】：與傳統(tǒng)的三相電機系統(tǒng)相比,多相電機系統(tǒng)具有轉矩脈動小、可靠性高和更適合于大功率傳動系統(tǒng)等優(yōu)點,因而廣泛地應用于大功率、高可靠性要求的航空、航天、艦船和電動汽車等場合。磁通切換型永磁電機(Flux-Switching Permanent Magnet電機,簡稱FSPM電機)是一種新型結構的定子永磁型無刷電機,不僅具有效率高、功率密度高等傳統(tǒng)轉子永磁型電機諸多優(yōu)點,而且更兼具轉子結構簡單、適合高速運行、冷卻方便等優(yōu)點,克服了傳統(tǒng)轉子永磁型電機的諸多缺點,具有較好的應用前景。本文選擇六相FSPM電機為研究對象,首先在分析該三相電機基本結構與工作原理基礎之上,提出了兩種不同六相FSPM電機的齒槽配合方式,并進行了性能比較；進而,研究了六相FSPM電機的通用設計方法和尺寸優(yōu)化；然后,基于二維有限元法分析了六相FSPM電機的靜態(tài)電磁特性；考慮到容錯運行,提出了六相FSPM電機發(fā)生單相和兩相開路故障時的容錯控制策略；最后,設計了兩臺不同齒槽配合的六相FSPM電機,并已加工完成一臺六相24/22極結構電機樣機,并對該樣機完成了基本靜態(tài)特性的測試,驗證了設計方案。本文所得結果為該電機的進一步深入研究和開發(fā)應用奠定了理論基礎。論文的主要研究內容包括如下幾個方面：1. 在三相FSPM電機基本結構的基礎上,提出了兩種不同齒槽配合的六相FSPM電機結構。其中六相24/20極FSPM電機繞組分布為六相對稱繞組,而六相24/22極電機的繞組分布為雙Y移30°繞組。然后,分析了六相FSPM電機的工作原理。2. 建立了六相FSPM電機的通用功率尺寸方程,并以此方程根據電機的性能指標直接得到了電機體積。在此基礎上,以六相24/20極FSPM電機為算例,演示了電機初始設計方案的設計過程。為了便于比較六相24/20極和24/22極FSPM電機性能,兩臺電機的定子外徑和鐵心軸長保持相同。然后,研究了電機定轉子主要尺寸變化對電機性能的影響,其中主要對轉子齒寬和裂比這兩個重要參數進行了優(yōu)化。3. 基于ANSYS參數化設計語言,對六相24/20極和24/22極FSPM電機做了二維有限元分析,完成了靜態(tài)特性的準確計算,主要包括氣隙徑向磁密、永磁磁鏈、空載反電動勢、繞組自感和互感、定位力矩和電磁轉矩等靜態(tài)特性。最后,利用時步有限元法分析了六相FSPM電機的鐵耗。4.研究了六相FSPM電機單相開路故障和兩相開路故障的容錯控制。為了使電機發(fā)生故障后的電磁轉矩與正常運行時保持不變,提出了容錯電流優(yōu)化控制策略。5. 設計了兩臺不同齒槽配合的六相FSPM電機,并已加工完成一臺六相24/22極樣機。對樣機的靜態(tài)特性進行了初步測試,驗證了設計方案的正確性。
[Abstract]:Compared with the traditional system of three-phase motor, multiphase motor system has small torque ripple, high reliability and more suitable for the advantages of high power transmission system, so it is widely used in high power and high reliability requirements of aviation, aerospace, ships and electric vehicles and other occasions. Flux switching permanent magnet motor (Flux-Switching motor Permanent Magnet referred to as FSPM), motor stator is a new permanent magnet brushless motor, not only has the advantages of high efficiency, high power density and traditional rotor permanent magnet type motor has many advantages, but also has the rotor has the advantages of simple structure, suitable for high speed operation, has the advantages of convenient cooling, overcomes the disadvantages of the traditional rotor permanent magnet motor. It has a good application prospect. This paper chooses six phase FSPM motor as the research object, first on the analysis of the three-phase motor basic structure and working principle of the foundation, proposed two different six phase FSP M motor of the slot, and a performance comparison; then, on the six phase FSPM motor design method and size optimization; then, two-dimensional finite element method based on the analysis of the static electromagnetic characteristics of six phase FSPM motor; considering the fault tolerant operation, proposed six phase FSPM motor and single-phase fault tolerant control strategy two phase open circuit fault; finally, designed two different slot with six phase FSPM motor, and finished a six phase 24/22 pole prototype structure of the prototype, and completed the basic static characteristics test, the design scheme is verified. The results of this paper lay a theoretical foundation for further research and development the application for the motor. The main contents of this thesis are as follows: 1. based on the basic structure of the three-phase FSPM motor, presents two different slots matching six phase FSPM motor The structure. In six phase 24/20 pole FSPM motor winding distribution of six symmetrical windings, and winding six phase 24/22 pole motor distribution for dual Y shift 30 DEG winding. Then, analyzes the working principle of.2. motor six phase FSPM to establish the general power dimension equation of six phase FSPM motor, and then according to the performance index equation the motor directly from the volume of the motor. On this basis, the six phase 24/20 pole FSPM motor as an example, the design process demonstrates the initial motor design. In order to compare the six phase 24/20 pole and 24/22 pole FSPM motor performance, the outer diameter of the two motor stator core and axial length remain the same. Then, study the main dimensions of motor stator and rotor of motor performance, which is mainly on the rotor tooth width and the split ratio of the two parameters of.3. were optimized based on ANSYS parametric design language, the six phase 24/20 pole and 24/22 pole FSPM motor. Two dimensional finite element analysis, the accurate calculation of the static characteristics, including radial air gap magnetic flux density, magnetic flux, no-load EMF, self inductance and mutual inductance, the static characteristics of cogging torque and electromagnetic torque. Finally, using time step finite element method analysis of fault-tolerant six phase FSPM motor single-phase open circuit fault the open circuit fault and two-phase control.4. consumption of six phase FSPM motor iron. In order to keep the motor constant torque and normal operation after the failure, put forward the optimization two different slot with six phase FSPM motor design and control strategy of fault tolerant.5. current, and has finished a six phase 24/22 pole prototype. The static characteristics of the prototype are tested, to verify the correctness of the design.

【學位授予單位】：東南大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM351

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