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신경망 제어기를 이용한 풍력발전시스템의 피치제어

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Author(s)
홍민호
Issued Date
2014
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000006773
Abstract
Wind turbine system can obtain the maximum wind energy using torque
control under the rated wind speed, and wind turbine power is controlled as
the rated power using pitch control over the rated wind speed. In this paper,
we present two methods for wind turbine pitch controller using neural
networks. The first method is that the difference between a rated and current
speed of generator has been used for another input of neural network
controller as well as wind speed. As a result, the generator speed and power
are maintained as the rated ones. However vibrations of pitch angle and
generator speed have been considered to be improved. And the second
methods is that the changing rate of generator speed has been used for
another input of neural network controller as well as the difference between
the rated and current generator speed. As a result, problems of the first
method have been improved. Error back-propagation algorithm is used for
training the neural network pitch controller and Matlab/Simulink is used to
confirm the performance of proposed method
Alternative Title
Pitch Angle Control of Wind Turbine System Using Neural Network Controller
Department
대학원 풍력특성화협동과정
Awarded Date
2014. 8
Table Of Contents
제 1 장 서론 2

제 2 장 풍력발전 시스템의 구성 5
2.1 Aerodynamics 5
2.2 Drive train 7
2.3 Generator 9
2.4 Controller 10

제 3 장 신경망 피치제어기 12
3.1 피치제어를 위한 신경망 12
3.2 풍속과 발전기의 회전속도를 고려한 신경망 피치제어 14
3.2.1 알고리즘 14
3.2.2 훈련요소 16
3.3 발전기의 회전속도 변화율을 고려한 신경망 피치제어 18
3.3.1 알고리즘 18
3.3.2 훈련요소 20

제 4 장 시뮬레이션 및 결과 22
4.1 풍력발전기의 Matlab/Simulink 모델 22
4.1.1 Aerodynamics model 23
4.1.2 Drive Train model 23
4.1.3 Generator model 24
4.1.4 Torque Controller model 24
4.1.5 Pitch actuator 25
4.2 신경망 제어기의 훈련을 위한 Matlab/Simulink 모델 26

4.3 신경망 피치제어시스템의 Matlab/Simulink 모델 31
4.3.1 풍속과 발전기의 회전속도를 고려한 신경망 피치제어시스템 31
4.3.2 발전기의 회전속도 변화율을 고려한 신경망 피치제어시스템 35
제 5 장 결 론 39
참고 문헌 41
Degree
Master
Publisher
제주대학교 대학원
Citation
홍민호. (2014). 신경망 제어기를 이용한 풍력발전시스템의 피치제어
Type
Dissertation
Appears in Collections:
General Graduate School > Multidisciplinary Graduate School Program for Wind Energy
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