The combination of neural networks and fuzzy controllers is considered as the most efficient approach for different functions approximation, and indicates their ability to control nonlinear dynamical systems. This paper presents a hybrid control strategy called Neuro-Fuzzy Sliding Mode Control (NFSMC) based on the Brushless Doubly fed Induction Generator (BDFIG). This replaces the sliding surfa...

This paper is concerned with behavior analysis and improvement of wind turbines with Doubly Fed Induction Generator (DFIG) when using a new fractional-order control strategy during wind variations. A doubly fed induction generator, two types of variable frequency power electronic converters and two input wind waveforms are considered. A fractional-order control strategy is proposed for the wind...

Variable speed generator systems (VSGs) are at work in the now 600 GW installed wind power plants (parks). Also, they used as vehicular and on ground stand-alone generators. VSGs imply full kVA rating PWM converters permanent magnet (PM) or electrically excited synchronous cage rotor inductance But, to reduce cost absence of PMs a reasonable initial (weight) efficiency, fractional converter dou...

Dual-stator brushless doubly fed generator (DSBDFG) is a novel applied for wind power generation, and the electromechanical energy conversion between stator rotor realised by magnetic field modulation of special structure. Therefore, design critical to improve performance DSBDFG. In this study, different structures are compared analysed, position non-magnetic ring determined. order reduce compu...

The brushless doubly-fed machine (BDFM) utilizes an asymmetric composite rotor featuring salient pole reluctance and magductance to effectively compensate for the phase shift in space, as well enhance magnetic field modulation effects, is therefore used a modulator. This paper evaluates capability of modulator from perspective conversion mechanism. theoretical evolutions average factors torque ...

In this paper, the concept and implementation of field-orientation control (FOC) of a doubly excited brushless reluctance machine (DEBRM) for variable-speed drives and generating systems are presented. A stator-flux-orientation scheme is employed to achieve decoupled control of torque and reactive power. A 2-hp DEBRM prototype system with a digital signal processor (DSP)-based controller and a ...

1.3 Torque ratio of 6/2 pole BDFRM and the 4 pole SYNCREL with the same copper losses, active copper and current angles of π/4. 13 1.4 α s and α p for maximum torque per 1.7 Maximum-torque-per-total-amperes for various torque levels.. . 19 1.8 Real and reactive powers under the maximum-torque-per-total-amperes condition with the secondary winding being supplied at the mains frequency (ω sn = 1).