410-4205/04 – Numerical Methods for Designing Electrical Machines and Apparatuses (NMSP)
| Gurantor department | Department of Electrical Power Engineering | Credits | 6 |
| Subject guarantor | doc. Ing. Petr Kačor, Ph.D. | Subject version guarantor | doc. Ing. Petr Kačor, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Optional |
| Year | 2 | Semester | winter |
| | Study language | English |
| Year of introduction | 2019/2020 | Year of cancellation | 2021/2022 |
| Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
The student describes the steps involved in building a numerical model. The student summarizes the process of generating the geometry, defines and assigns material properties to the model components. The student explains the settings of the solver for a specific type of analysis, applies the calculation method, and interprets the solutions. The student presents the results of the solutions using graphical outputs or graphical dependencies. The student evaluates and interprets the obtained results. Students utilize the outputs of numerical solutions to the presentation of the results.
Teaching methods
Lectures
Tutorials
Project work
Other activities
Teaching by an expert (lecture or tutorial)
Summary
This subject focuses on the utilization of the finite element method in numerical simulations of physical fields accompanying the design or analysis of the behavior of systems in power engineering. The exercises focus on the field of electrical machines and devices. Through practical examples, students will learn how to build numerical models, define and apply material properties, and configure the overall settings for solving the modeled tasks. They will also become familiar with the evaluation, processing, and interpretation of the results obtained, with regard to practical application and presentation. Calculations are performed using the ANSYS softwar environment.
Compulsory literature:
- Cardoso, J. R., Coelhom, R., R., A., Electromagnetics Through the Finite Element Method, CRC Press, 2025
- Senior, T. B., A., Mathematical Methods in Electrical Engineering, Cambridge University Press, 2008
- Sadiku, M.,N., O., Numerical Techniques in Electromagnetics, CRC Press, 1992
Recommended literature:
- Bianchi, N., Electrical Machine Analysis Using Finite Elements, CRC Press, 2005
- Zienkiewicz, O.C., The Finite Element Method In Engineering Science, London, McGraw-Hill, 1971
Additional study materials
Way of continuous check of knowledge in the course of semester
Conditions for credit:
Participation on exercises
Protocols of measurments and calculations
Credit test
E-learning
Other requirements
There are not additional requirements for the student.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
Describtion, basic structure of CAD and FEM software, model, material constants, loadings, post-processing.
2D and 3D electric field excercises, boundary conditions, loading, solution, post-processing.
2D and 3D magnetic field excercises, boundary conditions, loading, solution, post-processing.
2D and 3D electromagnetic field excercises, boundary conditions, loading, solution, post-processing.
2D and 3D thermal field excercises, boundary conditions, loading, solution, post-processing.
Introduction to structural field solution, deformation, displacement, deflection, mechanical torque etc.
2D and 3D coupled-field simulation (electro-magnetic-thermal-structural).
Solution methods, direct and indirect method, element types, material constants.
Solution of CFD excercises, cooling, thermal fluid, liquids, gases
Projects:
Student has to make individual projects by the help of FEM.
FEM simulation of force acting on two parallel conductors
FEM simulation of AC current flowing
FEM simulation of static force characteristic of DC electromagnet
Computer labs:
Requirements for passing of laboratory excercises, semestral project,
Starting of software, utility menu, setting, memory management, import and export files, GUI.
Preprocessor - 2D and 3D model building, element types,material properties, macro.
2D and 3D model of plate capacitor, computing of capacitance, high-voltage insulator (electric field intensity, dielectric strength).
2D and 3D model of manetic circuit with permanent magnet (magnetic circuit with BH curve, solution of force effect).
2D model of coil (computing of inductance of air-coils and solenoids with magnetic core).
2D model 3ph bus-bars (force effect in short-circuit condition, skin-effect, distribution of magnetic field at 3ph circuit).
2D model of DC solenoid magnet (static force characteristic, influence of BH characteristic on final force).
2D model of transforer (warming of winding).
2D model of 1ph transformer, solution of magnetic field, warming of winding at nominal loading.
3D model of thermal release of circuit breaker (warming at over-current condition, force effect made by thermal deformation).
3D model of motor shaft (material properties, loading).
2D CFD model of transformer (natural and force cooling, influence of cooling ribs).
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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