Abstract:
Wave current energy becomes double and highly predictable energy source. Since water
is 832 times denser than air, ocean currents produce comparatively excellent amount of
energy than air currents. To apply more force on the turbine, this may hit the blade.
When comparing this amount with the global annual energy demand, it is possible to
extract 7.65 * 1020 joules of energy annually, assuming that the ocean constitutes 70%
of the planet’s surface. The turbine is disturbed by the instability of the ocean and the
speed of current. This system is constantly disrupted by harmonics and mechanical vi
brations brought on by storms and the action of waves. In order to tackle these issues,
it is essential to implement effective power control strategies. Initially, an adaptive
backstepping controller (AB) is utilized, followed by the design of an integral SMC.
The ability of both controllers were evaluated within the Matlab. The research suggests
that, A-BC with H-Infinity control method for marine current turbine systems, aim
ing to demonstrate that F-A-BCH has enhanced resistance to interference and quicker
convergence in comparison to adaptive-back-stepping control, sliding mode control, and
fuzzy PI control methods in the presence of disturbances. Notably, the merged strategy,
which integrates Adaptive-Back-stepping with Fuzzy H-Infinity Control, demonstrates
the best overall performance, with output power error reduced to 3.2%, TSR error to
4.0%, and rotor speed error to 3.5%. This underscores the superiority of the merged
approach in minimizing errors and enhancing system efficiency. Compared to other
individual controller this method improves the output power by 69.5%, Tip speed ratio
by 67.2%,and rotor speed by 70.3%.
