Analysis of the Effects of Electrical Materials on Induction Motor Stator and Rotor Core Weight using Analytical and Finite Element Method

Year 2020, Volume: 8 Issue: 1, 137 - 145, 31.01.2020

Asım Gökhan Yetgin

Abstract

Induction motors have made great progress in terms of both power and efficiency from past to present. The most important reasons for this development are the improvement of the properties of the materials used in the stator and rotor cores and the reduction of the lost power values of the materials. Many different electrical materials are used in the stator and rotor core parts of induction motors and the properties of these magnetic materials are different. These differences are reflected in the performance of the induction motor (especially in iron losses). The iron losses occurring in the stator and rotor parts vary depending on the used material. In addition, the used materials have a critical effect on the weight of the stator and rotor core. In this study, the weight calculation of the stator and rotor core, which is one of the most important parts of induction motors, is calculated and the analytical results are compared with the results obtained by finite element method (FEM). The parameters which have effect on core weight are analyzed. It has been investigated how different materials and their properties affect the motor core weight. However, it has been shown how different materials affect motor efficiency.

Keywords

Induction motor, Electrical material, Stator and rotor core weight, FEM

Elektriksel Malzemelerin Asenkron Motor Stator ve Rotor Nüve Ağırlığı Üzerindeki Etkilerinin Analitik ve Sonlu Elemanlar Yöntemi ile Analizi

Abstract

Asenkron motorlar geçmişten günümüze kadar hem güç hem de verim açısından büyük aşama kaydetmişlerdir. Bu gelişimin en önemli nedenleri arasında stator ve rotor nüvesinde kullanılan malzemelerin özelliklerinin iyileştirilmesi, malzemelerin kayıp güç değerlerinin azaltılması gibi kritik noktalar ön plana çıkmaktadır. Asenkron motorların stator ve rotor nüve kısımlarında çok farklı elektriksel malzemeler kullanılmaktadır ve bu manyetik malzemelerin özellikleri birbirlerinden farklıdır. Bu farklılıklar asenkron motorun performansında, özellikle demir kayıplarında kendisini göstermektedir. Stator ve rotor kısımlarında meydana gelen demir kayıpları tamamen kullanılan malzemeye göre değişmektedir. Ayrıca kullanılan malzemeler stator ve rotor nüve ağırlığında da kritik bir etkiye sahiptir. Bu çalışmada asenkron motorların en önemli parçalarından biri olan stator ve rotor nüvesinin ağırlık hesabı yapılmış ve analitik olarak elde edilen sonuçlar sonlu elemanlar yöntemi (SEY) ile bulunan sonuçlar ile karşılaştırılmıştır. Nüve ağırlığına etkisi olan parametrelerin analizleri yapılmıştır. Nüve kısımlarında kullanılan farklı malzemelerin ve bunların özelliklerinin motor nüve ağırlığını nasıl etkilediği incelenmiştir. Bununla birlikte farklı malzemelerin motor verimini nasıl etkilediği gösterilmiştir.

Keywords

Asenkron motor, Elektriksel malzeme, Stator ve rotor nüve ağırlığı, SEY

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