E-Mobility has formed a main field in the automotive industry Main technological fi elds of expertise are pushing the application of
electric drive systems ahead:
- Machine design
- Power electronics
- Control of electric drives
Learning Objectives and Qualification Goals
Basic knowledge of state-of-the-art inverter & machine control
In-depth knowledge of operating strategies and energy e fficient control
Deepening of practical and nonlinear aspects
Ability of designing and implementing the complete control structure for an automotive alternating current drive
Content
1 Fundamentals of electric motors
- Fundamental operating principle of electric motors
- Requirements for continuous torque production
- Mechanical load system
- Components of an electric drive system
- Control of direct current motors
- Alternating current motors synchronous and induction motors
2 Modeling of alternating current motors and reference-frame theory
- Modeling of induction motors
- Modeling of permanent magnet synchronous motors
- Reference-frame transformations
- Linear d-q-axis model of permanent magnet synchronous motors
- Nonlinear d-q-axis model of permanent magnet synchronous motors
3 Current regulators of alternating current motors
- d-q-axis current regulators for induction and synchronous motors
- Feed-forward control and d-q-axis decoupling
- Advanced control concepts
- Basics of pulse width modulation inverters
4 Energy optimal torque control of permanent magnet synchronous motors (PMSM)
- Torque equations of surface mounted and interior PMSMs
- Linear maximum torque per ampere control
- Nonlinear maximum torque per ampere control
5 High-speed operation of PMSMs
- Field weakening control
- Maximum torque per ux control
6 Matlab/Simulink simulation excercises
- Control of a PMSM for low and high speeds
- Energy optimal coordination of operating points
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