Adaptive PI Control of Wave Energy Converters With Force and Motion Constraints
- Resource Type
- Periodical
- Authors
- Nguyen, H.
- Source
- IEEE Transactions on Sustainable Energy IEEE Trans. Sustain. Energy Sustainable Energy, IEEE Transactions on. 15(2):747-757 Apr, 2024
- Subject
- Power, Energy and Industry Applications
Geoscience
Computing and Processing
Force
Sea state
Standards
Adaptive control
Wave energy conversion
Sea measurements
Optimization
Wave energy converter
adaptive control
force constraints
motion constraints
wave force estimation
Kalman filter
- Language
- ISSN
- 1949-3029
1949-3037
This article presents the application of adaptive PI control design to a point absorber - wave energy converter (WEC) under force and motion constraints. Adaptive PI control has several features that make it attractive for WEC system. In particular, it has a clear physical interpretation. The “P” component converts the wave energy into useful energy, while the “I” component changes the WEC system natural frequency allowing the absorber to be more in phase with the incoming waves. However, standard adaptive PI control schemes in the literature do not have the ability to incorporate the constraints in the design phase. The main objective of this article is to fill this gap by proposing a new adaptive PI control law that can take the constraints into account. Simulation results show that the new control law can improve the performance while respecting system limitations.