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Hydrodynamic control of wave energy devices /
For researchers and practitioners, an accessible and integrated treatment of hydrodynamic control of wave energy devices.
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Cambridge :
Cambridge University Press,
[2016]
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Half-title; Title page; Copyright information; Table of contents; Preface; Acknowledgments; Part I Introduction; 1 Wave Energy Conversion; 1.1 Waves as Energy Carriers; 1.2 Nature of Wave Motion; 1.3 Regular versus Irregular Waves; 1.4 Wave Energy; 1.5 Primary Energy Conversion; 1.6 Secondary Energy Conversion; 1.7 Tail-Tube or Pneumatic Buoy; 1.8 Edinburgh Duck; 1.9 Contouring Rafts; 1.10 Submerged Cylinder; 1.11 Flexible Bag-Type Devices; 1.12 Omnidirectional Buoys; 1.13 Attenuator and Terminator Oscillating Water Column Devices; 1.14 Other Recent Sea-Tested Devices.
- 1.15 Need for Control1.16 Conclusion; 1.17 Commonly Used Wave Energy Terminology; Part II The Basics; 2 Introduction to Control Engineering; 2.1 Techniques and Terminology; 2.2 Benefits and Pitfalls of Feedback; 2.3 Control Design; 2.4 State Space Modeling; 2.5 Challenges for Wave Energy Conversion; 2.6 Control of Wave Energy Devices; 2.7 Conclusion; 3 Bodies Oscillating in Air; 3.1 Power Absorption from an Oscillatory Force; 3.2 Control for Maximum Power Absorption; 3.3 Irregular Forcing; 3.4 Conclusion; 4 Bodies Oscillating in Water; 4.1 Oscillation Near Free Surface; 4.2 Regular Waves.
- 4.3 Irregular Waves4.4 Conclusion; Part III The Hydrodynamics; 5 Nature of the Wave Input; 5.1 Description of a Harmonic Wave; 5.2 Description of Irregular Waves; 5.2.1 Probability Density Functions; 5.2.2 Stationarity and Ergodicity; 5.2.3 Power Spectral Density; 5.3 Group Behavior of Waves; 5.4 Wave Power as Rate of Energy Propagation; 5.5 Device Response in Irregular Waves; 5.6 Conclusion; 6 A Closer Look at Wave Energy Hydrodynamics; 6.1 A Body in Waves; 6.2 Beam-Sea Devices; 6.3 Producing Optimum Velocity; 6.4 Calculating the Average Absorbed Power; 6.5 Favorable Mode Combinations.
- 6.5.1 Non orbital Motion of Body Centroid6.5.2 Orbital Motion of Body Centroid; 6.6 Omni directional Devices; 6.7 Head-Sea Devices; 6.8 Energy Absorption under Displacement/Velocity Constraints; 6.9 Oscillating Water Column Devices; 6.10 Device Arrays; 6.11 Conclusion; Part IV Velocity Control Using a Hydrodynamic Model; 7 Reactive Control in Time Domain; 7.1 Approaching the Hydrodynamic Optimum; 7.2 Control Force Synthesis; 7.2.1 Right-Shifting of Impulse Response Functions; 7.2.2 Wave Propagation and Future Information; 7.2.3 Approximate Evaluation of Control Force.
- 7.3 Wave Prediction from Up-Wave Measurement Time History7.3.1 Propagation Impulse Response Function; 7.3.2 Up Wave Distance and Duration of Measurement; 7.4 Conclusion; 8 A Causal Real-Time Controller for Wave Energy Converters; 8.1 Introduction; 8.1.1 Model Definition; 8.1.2 Model Identification; 8.2 Real-Time Controller; 8.2.1 Maximum Wave Energy Extraction; 8.2.2 A Simple and Effective Realization of Reactive Control; 8.2.3 Constraint Handling; 8.2.4 Velocity-Tracking Control Loop; 8.3 Results; 8.3.1 Wave Data; 8.3.2 Performance in the Unconstrained Case; 8.3.3 Introduction of Constraints.