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Ano Letivo: 2021/22

Engenharia Electrotécnica e de Computadores

Control of Electromechanical Drives (Major in Energy

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Publication in the Diário da República: Despacho nº 10766/2011 - 30/08/2011

6 ECTS; 3º Ano, 2º Semestre, 28,0 T + 42,0 PL + 5,0 OT , Cód. 911229.

- Pedro Manuel Granchinho de Matos

Not applicable.

To develop dynamic models for the characterization of the mechanical load assembly, electric machine, electronic converter and power supply;
Design and analyze the performance of industrial drives and electric drive vehicles, according to the specific requirements set by the load and power supply;
Design and dimension control and control solutions for drive systems, using electronic power converters, based on rotating electric machines (DC, asynchronous and synchronous).

1. Constitution of electromechanical systems;
1.1 Introduction to electromechanical systems;
1.2 The electric vehicle - the establishment and specific characteristics of electric vehicles;

2. Modelling of stationary and dynamic behavior of industrial mechanical components;
2.1 Mechanical aspects;
2.2 Equation of motion;
2.3 Typical loads;
2.3.1 Rigid and elastic connection;
2.3.2 Transmission;
2.3.3 Pumps and fans;
2.3.4 Windings;

3 Specific features of electric vehicles;
3.1 Equations of motion;
3.2 External forces;
3.2.1 Wheel Model;
3.2.2 resistant forces;

4. Applications of control systems, electromechanical actuators;
4.1 DC machines;
4.2 Three-phase asynchronous machines;
4.3 Synchronous machines;

5. Power of electric traction systems;
5.1 Batteries;
5.1.1 Analysis of different types of batteries;
5.1.2 Parameters of the batteries and technical characteristics;
5.1.3 battery modeling;
5.2 Alternative systems;
5.2.1 Fuel Cells;
5.2.2 supercapacitors;
5.2.3 Flywheels of inertia;

6. Power Chain in electric vehicles (EV) and hybrid electric vehicles (HEVs);
6.1 transmission components;
6.2 power chain dimensioning;
6.3 Regenerative braking;
6.4 Analysis of consumption and autonomy of EV and HEV;

Evaluation Methodology
A written test in any of the periods and a project. Both are worth 50% of the final mark. The approval in the discipline implies a classification higher than or equal to 10 points in the written test.

- Husain, I. (2003). Electric and Hybrid Vehicles, Design Fundamentals. (Vol. 1). USA: CRC Press
- Dente, A. e Palma, J. (2008). Accionamentos Electromecânicos de Velocidade variável. (Vol. 1). Portugal: Fundação Calouste Gulbenkian
- Gillespie, T. (1992). Fundamentals of Vehicle Dynamics, Society of Automotive Engineers. (Vol. 1). USA: SAE International

Teaching Method
Lectures and analysis of theoretical-practical case studies

Software used in class
Matlab and Microsoft Excel




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