طراحي اتوماتيك ماشينهاي الكتريكي با استفاده از كامپيوتر

چكيده انگليسي :

126 Computer Aided Design of Electrical Machines Mohammad Adib Ghadamyari a ghadamyari@ec iut ac ir Department of Electrical and Computer Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Mehdi Moallem moallem@cc iut ac ir Abstract The main objective of this work is to develop an Electrical Machines Automatic Computer Aided Designpackage EMA CAD for design of different types of electric machines In this project design and analysisof Switched Reluctance Motor SRM Induction Motor IM Permanent Magnet Surface Mounted Motor PMSM and Direct Current Motor DCM have been developed EMA CAD has a user friendly andgraphical environment which consists of proper menus and windows It also consists of different modulessuch as complete database first design design performance analysis design improvement and sensitivityanalysis modules It can also save and show motor characteristic curves schematic of designed motor with itsactual size accurate motor parameters motor performance and etc In EMA CAD at first the kind of motoris selected and first design for desired output characteristics of motor is provided This design is based on acomplete knowledge base that contains of iron permanent magnet and winding materials also the shape ofslots and kind of windings can be selected too Output of the first design consists of complete model of motorand all parts of the motor are accurately specified In fact the first design is a pre design that its characteristicis near to the desired characteristic of the motor However it can be improved in next steps This developeddesign analysis process is continued automatically and depend on kind of selected motor differentcharacteristics of this design is obtained with a proper design algorithm and accurate analytical model Alsodepend on the desired characteristics with change in geometrical parameters and material of motor the firstdesign can be improved automatically The improvement continues until the nearest characteristic to desireone obtained The final design is provided and its result is shown in colored 2d curves All operations inEMA CAD are performed automatically however designer can change the path of designing based on hisexpertise and better design can be achieved by changing design properties with the engineer s experience One of the most important capabilities of EMA CAD is sensitivity analysis of motor performance due tovariation of design parameters Having this capability by selecting proper variation ranges the variation ofoutput performance of designed motor with respect to design parameters can be obtained Sensitivity analysiscan reduce cost and process time of prototyping in the manufacturing process Sensitivity analysis can alsohelp manufacturer to impose their design limitations by proper variation in design parameters EMA CAD is based on analytical modeling design and analysis of electrical machines and effectivelyreduces the designing time In the analysis process accurate analytical methods are used to reduce themodeling and computational time On the other hand to analyze a motor with FEM the complete dimensionsof machine materials winding structure and supply sources should be known Therefore EMA CAD can beused for preparing the proper designs as input to FE analysis EMA CAD can establish a link with FEApackages such as MagNet 6 25 MagNet is a powerful package for finite element analysis of electricalmachines The design provided in EMA CAD can be saved in a format that can be read by MagNet All partsof this process can be performed automatically and the final design can be transferred into MagNetenvironment and analyzed to validate the accuracy of analytical results Key Words Computer Aided Design Electrical Machines Sensitivity analysis Automatic design

اديب قدمياري، محمد

طراحي اتوماتيك ماشينهاي الكتريكي با استفاده از كامپيوتر

مدلسازي تحليلي , آناليز حساسيت , موتور سوئيچ رلكتانس , موتور سنكرون , موتور القايي