Assignments

The assignments will be uploaded in time on this page.

Assignment 1: Wind Data Analysis

• Assignment (PDF)
• Necessary data (Matlab and Excel format) and Matlab files
• Time for questions: See schedule.
• Hand in latest Friday, 31 January, 13.00.
• Important results and mistakes will be presented and discussed in an exercise session, see schedule.

Assignment 2: Generators

• Assignment
• Time for questions: See schedule.
• Hand in latest Tuesday, 18 February, 13.00.
• Important results and mistakes will be presented and discussed in an exercise session, see schedule.

• Key to the comments in the marked assignments:

  • a) Stator, power supply, magnetic field
  • b) Induction
  • c) Rotor, current in short-circuit bars
  • d) Magnetic fields of rotor and stator interact
  • e) Interaction leads to changes in stator current

  Properly explaining those important steps gained 0.5 points per step.

• Here you will find a picture that I should have shown you when we discussed how to connect the stator of an induction machine. Now, it should be clear where the current "enters" and "exits" a coil if the voltage of the specific phase is positive. E.g. if the current of phase U is positive, the current enters coil U at U and exits it on the opposite side. If the current  is negative, it will be the other way round.

Assignment 3: Grid integration

• Assignment (PDF)
• Static Analysis of Power Systems (PDF) (password: hornsrev)
• Time for questions: See schedule.
• Hand in latest Wednesday, 5 Mars, 10.00.
• Important results and mistakes will be presented and discussed in an exercise session, see schedule.

Assignment 4: Blade design + Assignment 5: Hybrid systems

• Time for questions: See schedule.
• Hand in latest Friday, 11 April, 15.00.
• Important results and mistakes will be presented and discussed in an exercise session, see schedule.