7644

7117

كارشناسي ارشد

قدرت

اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر

1391

سيزده،92ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

مهدي معلم

احمدرضا تابش

26/1/92

محمد ابراهيمي، حميدرضا كارشناس

مهندسي برق و كامپيوتر

ID7117

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

93 Design of Interior Permanent Magnet Synchronous Machine for Integrated Starter Alternator Application Hooshang Mirahki h mirahky@ec iut ac ir Date of Submission 2013 05 9 Department of Electrical and Computer Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Dr Mehdi Moallem moallem @cc iut ac ir Abstract Some of the major goals in car industry are to reduce the weight and size of the cars by reducing the mechanical parts and combining them into smaller electrical system to increase the fuel economy One way to achieve part of this goal is to use an Interior Permanent Magnet IPM machine as an Integrated Starter Alternator ISA system In this thesis we have accomplished two considerable improvements in IPM machine design for starter alternator applications rst a reduction in the amount of the magnet used in machine and as a result a reduction in the total cost and secondly an increase in the amount of the produced power in generation mode by improved design of three layer permanent magnet on the rotor And also in this thesis the Lumped Parameters Model LPM is used for calculation of Q and D axis inductances of three layer Interior Permanent Magnet IPM machine considering all details of flux barrier and air bridges of rotor and also the effect of saturation in central posts and stator core Q and D axis inductances are used for calculation of the average torque To validate the model results are compared with the Finite Element Analysis FEA results for a candidate IPMS machine At last a novel objective function is proposed for optimization of a three layer IPM machine s main parameters for use in 42 V ISA applications The Optimization problem is then solved by the help of the Genetic Algorithms Besides fulfilling the standards proposed by the Consortium we have succeeded in increasing the starting torque and the power at high speed 6000rpm beyond the measures proposed by the Consortium In this thesis a combination of Lumped Parameters Model LPM quasi Poissonian s equations and Conformal Mapping CM methods for predicting radial and tangential air gap flux density of Interior Permanent Magnet Synchronous Machine IPMSM is presented In the proposed method LPM is used for calculation of saturation and flux leakage Quasi Poisson s equation is used for forming radial and tangential flux density in slotless stator and finally CM is used to account for slot effect To validate the method results are compared with Finite Element Method FEM results for a candidate IPMSM Keywords Integrated Starter Alternator ISA Interior Permanent Magnet Machine Sensitivity Analysis Genetic Algorithms

مهدي معلم

احمدرضا تابش

محمد ابراهيمي، حميدرضا كارشناس