Real-Time Flow Control of Blade Section Using a Hydraulic Transmission System Based on an H-Inf Controller with LMI Design

Autor: Kang Zhao, Guifang Liu, Changle Sun, Jiahao Jia, Tingrui Liu
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Lyapunov function
Control and Optimization
Computer science
Energy Engineering and Power Technology
01 natural sciences
lcsh:Technology
real-time flow control
Physics::Fluid Dynamics
symbols.namesake
hardware-in-the-loop simulation
Pitch control
Control theory
0103 physical sciences
Cylinder
Waveform
Aerodynamic load
hydraulic transmission system
Electrical and Electronic Engineering
controller
010301 acoustics
Engineering (miscellaneous)
Wind power
Renewable Energy
Sustainability and the Environment
business.industry
lcsh:T
Programmable logic controller
Hardware-in-the-loop simulation
flutter suppression
04 agricultural and veterinary sciences
Aerodynamics
Transmission system
Aeroelasticity
Vibration
pitch control
040103 agronomy & agriculture
symbols
0401 agriculture
forestry
and fisheries
Flutter
H∞ controller
business
aerodynamic load
linear matrix inequality
Energy (miscellaneous)
Zdroj: Energies
Volume 13
Issue 19
Energies, Vol 13, Iss 5029, p 5029 (2020)
ISSN: 1996-1073
DOI: 10.3390/en13195029
Popis: Vibration and real-time flow control of the 2D blade section of wind turbines with three degrees of freedom (3-DOF), excited by external pitch motion, are investigated based on an H-inf (H&infin
) controller using linear-matrix-inequality (HIC/LMI) design. The real-time flow control for the purpose of aeroelastic flutter suppression includes not only the driving process of real-time physical equipment, but also the realization of real-time control algorithm in the physical controller. The aeroelastic system combined with pitch motion is controlled by a kind of HIC/LMI algorithm. The real-time external pitch motion is driven by rack-piston cylinder (RPC) using a hydraulic transmission system (HTS). The unsteady aerodynamic loads model is simplified by the HTS system. The HTS is actuated by a proportional-flow valve (PFV) which is controlled by another HIC/LMI algorithm, a novel algorithm for waveform tracking. According to the result of waveform tracking, the input current signal of PFV is realized by the configuration of the controller hardware system and its external circuits. In two types of HIC/LMI algorithms, controller stabilities are affirmed using Lyapunov analyses, and controller values are derived and obtained by using LMI designs. Flutter suppression for divergent and instable displacements is shown, with obvious controlled effects illustrated. An online monitoring experimental platform using hardware-in-the-loop simulation, based on Siemens S7-200 programmable logic controller (PLC) hardware and Kingview detection system, is built to implement pitch motion based on HTS and configure the signal input of PFV in pitch control.
Databáze: OpenAIRE
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