Control of wind power plants
Wind turbines power plant is a popular supplementary power plant in today energy thriving world. Basically wind turbine power plant is a combination of devices that convert wind energy (kinetic energy) to mechanical energy and then the later is used to produce electricity. A reliable contro...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/60405 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Wind turbines power plant is a popular supplementary power plant in today energy
thriving world. Basically wind turbine power plant is a combination of devices that
convert wind energy (kinetic energy) to mechanical energy and then the later is used to
produce electricity. A reliable control system plays a critical role in order to produce
stable output voltage for grid under variable wind speed.
In this project, the doubly fed induction machine is used as a generator. The stator is
connected directly to the grid and the rotor is fed by a bidirectional converter that is also
connected to the grid. Using Vector Control (Field Oriented Control) technique, the
bidirectional converter assures energy generation at nominal grid frequency and
nominal grid voltage independently of the rotor speed. The converter’s main aim is to
compensate for the difference between the speed of the rotor and the synchronous
speed with the slip control. The advantage of DFIG over squirrel cage induction
generator (SCIG) and is having a smaller in size of bidirectional converter and nominal
power filter. Moreover DFIG is smaller than multi pole permanent magnet synchronous
generator (PMSG) due to without having the multi poles. |
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