A state-of-the-art review of the hybrid wind-wave energy converter

Abstract

The urgent demand for energy structural reform and the limitations of single energy development have promoted the combination of wind energy and wave energy. A hybrid energy system means that two or more energy devices share the same foundation. It reduces the levelized cost of energy (LCOE) and improves competitiveness through infrastructure sharing and increased power output. This paper starts with the development of the joint resources of wind and wave energies, then introduces the foundation forms of the hybrid system. It reviews the latest concepts and devices proposed with the integration of wind energy and wave energy, according to the foundation forms, and makes a preliminary assessment of the synergies of the hybrid system. The existing study methods of the hybrid systems are summarized. In view of the challenges faced by the development of hybrid energy systems, several suggestions are put forward accordingly. This paper provides a comprehensive guideline for the future development of the hybrid wind-wave energy converter (W-WEC) system.

The Energy Conversion and Coupling Technologies of Hybrid Wind–Wave Power Generation Systems: A Technological Review

“…In terms of energy conversion technologies, integrating oscillating water column devices and hydraulic wind turbines into hybrid wind-wave systems has the potential to enhance their operating life, energy production, and system economy [45]. This will be a future research trend.…”

“…The major technologies of these systems are relatively mature and many demonstration projects have been implemented globally [40][41][42][43][44]. Hybrid systems, identified as a new research hotspot in recent years, combine offshore wind turbines and wave energy converters on the same foundation [45]. Compared with co-located and island systems, hybrid systems have the advantages of a smaller size, lower manufacturing and maintenance costs, and higher energy utilisation efficiency per unit area [46].…”

“…Iglesias et al classified combined wind-wave systems and reviewed WEC technologies [26]. Hongda et al provided a comprehensive review, which included global assessments of wind energy and wave energy resources and the foundation structures of hybrid wind-wave systems [45]. McTiernan and Sharman reviewed the types of hybrid wind-wave systems and discussed their advantages and disadvantages [68].…”

A Jacket-Frame Mounted Oscillating Water Column with a Variable Aperture Skirt

“…These projects led to the definition of several hybrid concepts during the last decade. Dong et al [17] have recently identified more than 39 different hybrid concepts that were proposed to date. Out of these, 27 combined an oscillating body (OB) type of wave energy converter (WEC) into the foundation system of an offshore wind turbine (e.g., [18][19][20][21]), while 12 utilised an oscillating water column (OWC) type of WEC (e.g., [22][23][24][25][26][27][28]).…”