Accurate modeling of the wind energy conversion system is necessary to design and implementation of the control loop for the generator and the frequency converter, in order to extract maximum power from the wind and to investigate the effects of interconnection between wind farms and power system. In this paper the combination of a permanent magnet synchronous generator loaded with a diode rect...

This paper presents a reduced-order H∞ optimal control for wind energy conversion systems. Two different timescale (slow and fast) dynamics of wind energy conversion systems are separated and processed independently using the singular perturbation theory. By using the decomposition technique, low-order, independent H∞ optimal filters and controllers are obtained, which provide computational adv...

Against the backdrop of increasing energy demands, the threat of climate change and dwindling fuel reserves, finding reliable, diverse, sustainable/renewable, affordable energy resources has become a priority for many countries. Marine energy conversion systems are at the forefront of providing such a resource. Most marine renewable energy conversion systems require tribological components to c...

2. Warm core systems are equivalently barotropic because the thickness and mass fields align as vertically-stacked structures. The resulting lack of thickness advection by the geostrophic wind prevents any conversion of zonal available potential energy (PM) to eddy available potential energy (PE) by the geostrophic wind thus precluding any quasigeostrophic baroclinic instability for warm core s...

The efficiency of the variable speed wind energy conversion systems (WECS) can be greatly improved using an appropriate control strategy. In this paper, nonlinear control for wind energy conversion system (WECS) based on the permanent magnet synchronous generator (PMSG) is investigated in order to maximize the generated power from wind turbine. The control strategy combines the technique of max...

The threat of climate change and diminishing fossil fuels demands nothing short of an energy revolution, a transformation which is already underway as renewable energy markets exhibit enormous and steady growth. This paper presents design of optimal control schemes for Wind Energy Conversion Systems (WECS) based on a time scale technique. The dynamics governing the mechanical components of a va...

A new maximum power extraction (MPE) controller for variable speed permanent magnet synchronous generator (PMSG) wind energy conversion systems (WECS) is proposed. The proposed controller generates optimum speed reference signal for the speed control loop of the vector controlled machine side converter control system without requiring the knowledge of wind speed using only active power and air ...