Combining wave energy converters (WECs) with a floating breakwater provides potential approach to help develop commercial-scale power operations. This paper aims design and optimize three-dimensional integrated WEC array by developing numerical model of multi-floating-body coupled system based on flow theory viscous correction in the frequency domain. By analyzing surface elevations around brea...

The wave-energy excitation of point absorbers is highly associated with their resonant movement, and harmonic characteristics are increasing concern in affecting resonance. However, the commonly used linearized power take-off (PTO) systems underestimate impact harmonics. purpose this study to address knowledge gap assessing contribution hydraulic PTO higher wave loads velocities. In present wor...

With the increase in doubly fed induction generator-based wind energy conversion systems (DFIG-WECS) worldwide, improving fault ride-through (FRT) capability of entire system has been given much attention. Enhancement FRT a DFIG-WECS is conventionally realized by employing flexible AC transmission device with proper control system. This paper presents non-conventional method for improvement DFI...

Over the last few years, improving power extraction from wind energy conversion system (WECS) under varying speeds has become a complex task. The current study presents optimum maximum point tracking (MPPT) control approach integrated with neural network (NN)-based rotor speed and pitch angle to extract WECS. So, this reference model adaptive (RMAC) for direct-drive (DD) permanent magnet vernie...

Despite several wave energy converters (WECs) having been developed to present, no particular concept has emerged yet. The existing inventions vary significantly in terms of the operation principle and complexity WECs. tethered point absorbers (PAs) are among most known devices that, thanks their simplicity, appear be cost-effective reliable for offshore installation. These need advanced furthe...

We present a technique for adding view-dependent information to geometry, allowing us to write down, for each point on the surface, what the surface looks like from every direction. This data structure allows the incorporation of “image-based” objects into ordinary rendering, allows broader viewing conditions for image-based objects (one can look at a torus from “inside the hole,” for example),...

Wind energy one of the world’s fastest growing energy technologies. It is estimated that 16% of the world’s electricity will be harnessed from wind power by 2020. Efficient and stable utilization of wind energy has been an important problem. The present work is a comprehensive report on various topologies and generators used in WECS aimed at drawing comparison between the various options availa...

The doubly-fed induction generator (DFIG) is widely used in variable speed wind energy conversion systems (WECS). This paper presents a review on various topologies, configuration, power converters and control schemes used with the operation of the DFIG. The operation of DFIG based on both slip ring and brushless arrangement has been discussed. The grid integration of DFIG and its influence on ...