Practical Courses

The contents of the practical course cover the main research areas of IEW: electrical machines and contactless energy transmission.

• Coupled coils
• Installation and commissioning of a power electronics for contactless energy transmission
• Finite Element Simulation Magnetic Circuit
• DC machine
• Mains synchronization of an electrically excited synchronous machine
  asynchronous machine

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The registration is possible from Tuesday, 01.10.2024 at 08:00 am, it ends on Friday, 18.10.2024 at 11:59 pm.
Students have to register for the C@MPUS course 371200310 "Electrical Energy Conversion I" on the waiting list during this period.
In addition, the registration form must be completed and sent by e-mail to fachpraktikum@iew.uni-stuttgart.de

The number of participants is limited to 20 students. The registration date on C@MPUS and the individual previous knowledge decide whether you will receive a spot in the course. Acceptances and cancellations will be announced by e-mail from Monday, 07.10.2024 and the admitted students will be assigned to the appropriate C@MPUS groups.

Note: Registration is on waiting list only, please register for the standard group, we will make the placement after admission. 

The internship takes place in small groups in the laboratory of the IEW in compliance with the current hygiene conditions. In order to reduce the time of attendance, parts of the experiments may be carried out via video/audio transmission. You will be informed about additional protective measures.

Task Definition:
In scope of this teamwork, basic theoretical and practical knowledge in the fields of electrical machines and their control and regulation is to be acquired. There are two teams whose tasks are divided into two work packages (AP):

• TEAM 1 - AP1: Winding and commissioning an EC motor
  Stator and rotor of electronic motor (EC-motor) are provided. The stator has to be be suitably wound. The focus of the work is on the analysis of the provided components, the winding scheme, and the choice of the number of windings of the EC motor. In addition, the Hall elements must be suitably positioned to detect the position of the rotor.
  
  
• TEAM 1 - AP2: FPGA programming
  The power electronics and the signal electronics for controlling the EC motor are provided. With the help of a Field Programmable Gate Array (FPGAs) a control or regulation for the EC motor is to be programmed. The FPGA has to convert the control of the transistors of the pulse inverter depending on the evaluated Hall signals. Programming is executed in the programming language AHDL.
  
  
• TEAM 2 - AP1: Winding and commissioning an EC motor
  The winding process is the same as for Team 1 - AP1, commissioning is carried out using an electronic kit.
  
  
• TEAM 2 - AP2: µC programming
  The power electronics and the signal electronics for controlling the EC motor are implemented with the aid of the electronics kit in AP1. With the help of an ATMEL microcontroller, a control system for the EC motor is to be programmed. The microcontroller has to control the transistors of the pulse inverter and evaluate the Hall signals. Programming is carried out in the programming language C.

Topics from the lectures "Electric Machines I & II" and "Inductive Charging":

• Modelling and simulation of an asynchronous machine in Matlab/Simulink (project work computer simulation)
• Measurement of an asynchronous machine on the test bench
• Control of an asynchronous machine on the test bench
• Modelling and control of a permanent-magnet synchronous machine
• Non-contact energy transmission

The trials will take place on Tuesdays and Thursdays and 4 trials will take place on Tuesdays regardless of the regular weekday.

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The registration is possible from Monday, April 1st, 2024 at 08:00 am, it ends on Wednesday, April 10th, 2024, 11:59 pm.
During this period, students have to register for the C@MPUS module "Praktische Übungen im Labor (M.Sc.) Elektromechanische Energiewandlung II" on the waiting list.
In addition the  registration form has to be completed an send via email to fachpraktikum@iew.uni-stuttgart.de.

Confirmations will be distributed from Thursday April 11th, 2024 and binding registrations will then be possible.
(Moving up / subsequent registration possible until April 18th, 2024, provided there are still places available)

The number of participants is limited to 20 students, the time of registration and the individual previous knowledge decide about a place in the internship. The group classifications will be announced by e-mail on Thursday, April 18th, 2024 and the admitted students will be assigned to the corresponding C@MPUS groups.

The following experiments are offered at IEW as part of the basic practical course for electrical engineers:

• Identification of components such as ohmic resistance, coil, capacitor and diode using the current-voltage characteristic.
• Behaviour of the components at direct voltage and at alternating voltage.
• Application of measuring devices for current and voltage measurement.
• Recording of a diode characteristic.
• One-way rectification and smoothing of the rectified voltage.
• Highpass and lowpass.

Three test blocks are planned:

• AC/DC + Measurement
• Semiconductor devices
• Electrical machines

Each test block is divided into several different problems which are dealt with in groups of three. Each student has to complete a problem from each of the three blocks.