Amidst ongoing declines in honey bee health, the contributory role of the newer systemic insecticides continues to be intensely debated. Scores of toxicological field experiments, which bee scientists and regulators in the United States have looked to for definitive causal evidence, indicate a lack of support. This paper analyzes the methodological norms that shape the design and interpretation...

Variable phase-pole machines have the potential to extend operational range higher speeds through magnetic pole changes. The state-of-the-art vectorspace decomposition cannot model transient behavior of change for any possible configuration as it creates a discontinuity. proposed harmonicplane theory solves this issue by generalizing vector-space fullest using its discrete Fourier transformatio...

Aim. This paper presents the minimization of reactive and active power ripples doubly fed induction generators using super twisting algorithms pulse width modulation based on neuro-fuzzy algorithms. Method. The main role indirect control is to regulate powers for variable speed dual-rotor wind systems. field-oriented a classical scheme simple structure. Pulse an adaptive-network-based fuzzy inf...

This paper presents dynamic simulation and control of stand-alone doubly fed induction generator (DFIG) loaded with 3-phase motors (IMs). The study reveals that direct on-line starting large IMs causes a voltage sag across the terminals as current drawn reaches up to 8-9 times rated load current. Traditionally, this problem has tackled by oversizing or employment special starters, under pretext...

Because of the low maintenance and robustness induction motors have many applications in the industries. The speed control of induction motor is more important to achieve maximum torque and efficiency. Various speed control techniques like, Direct Torque Control, Sensorless Vector Control and Field Oriented Control are discussed in this paper. Soft computing technique – Fuzzy logic is applied i...