Adaptive Disturbance Rejection and Power Smoothing Control for Offshore Hydraulic Wind Turbines Based on Pitch and Motor Tilt Angles

Guisheng Yang, Lijuan Chen (), Pengyang Cai, Wei Gao and Chao Ai
Additional contact information
Guisheng Yang: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Lijuan Chen: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Pengyang Cai: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Wei Gao: School of Advanced Manufacturing, Sun Yat-sen University, Shenzhen 518107, China
Chao Ai: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China

Energies, 2024, vol. 17, issue 24, 1-18

Abstract: This paper investigates an adaptive disturbance rejection control (ADRC) strategy for dual-variable power smoothing for hydraulic wind turbine systems deployed in marine environments. Initially, fluctuations in wind speed induce variations in the output torque and rotational speed of the wind turbine; this study examines the interaction between these two variables and subsequently decouples them. An innovative dual-variable anti-disturbance control strategy is proposed, which independently regulates the pitch angle of the rotor and the swing angle of the variable motor to mitigate fluctuations in both speed and torque, thereby achieving a smoother system output power. The simulation results obtained through MATLAB/Simulink (Version R2022a) indicate that employing the proposed control strategy leads to an 8.31% reduction in power generation compared to optimal power tracking strategies while enhancing output power stability by 56.67%. Furthermore, the effective smoothing of power fluctuations is accomplished without necessitating energy storage devices. Finally, the effectiveness of the power smooth output control strategy proposed in this paper was verified based on a semi-physical simulation experimental platform for a 30 kW hydraulic wind turbine. The control method proposed in this paper provides a theoretical basis for the promotion and application of hydraulic wind turbines with stable power output.

Keywords: offshore hydraulic wind turbine; power smoothing control; adaptive disturbance rejection control; parameter uncertainty (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/17/24/6244/pdf (application/pdf)
https://www.mdpi.com/1996-1073/17/24/6244/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:17:y:2024:i:24:p:6244-:d:1541360

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().