A robust Fuzzy-PI pitch angle controller for wind turbine systems
This paper presents a robust Fuzzy-PI controller to adjust the pitch angle of a grid integrated wind turbine. The pitch angle mechanism of a turbine blade allows it rotate on its own axis so that it can protect itself from high wind gust and release excessive stress from the mechanical structure....
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications
2015
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| Subjects: | |
| Online Access: | http://eprints.unisza.edu.my/5010/1/FH02-FSTK-15-04483.pdf http://eprints.unisza.edu.my/5010/ |
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| Summary: | This paper presents a robust Fuzzy-PI controller to adjust the pitch angle of a grid
integrated wind turbine. The pitch angle mechanism of a turbine blade allows it rotate on its own axis
so that it can protect itself from high wind gust and release excessive stress from the mechanical
structure. Although a classical PI controller has been widely used for this purpose, they cannot assure
generator stability. The proposed Fuzzy-PI control system uses three control inputs and nine
membership functions to make decision on pitch angle output. A wind speed model is devised to
simulate real life turbulent wind condition. The simulation results show that the Fuzzy-PI controller is
more suitable for turbine operation if it is subjected to heavy turbulence. |
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