43 ABSTRACT An optimal fuzzy AGC regulator design based on GASA tuning technique for interconnected power system is proposed in this paper. The investigations with the GASA tuned optimal fuzzy regulator are carried out on a two area interconnected power system consisting of power plants with different characteristics. Power system area-1 is having plants with reheat thermal turbines whereas are...

We review the scenario of sneutrino hybrid inflation, where one of the singlet sneutrinos, the superpartners of the right-handed neutrinos, plays the role of the inflaton. In a minimal model of sneutrino hybrid inflation, the spectral index is given by ns ≈ 1 + 2γ . With γ = 0.025± 0.01 constrained by WMAP, a running spectral index |dns/dlnk|≪ |γ| and a tensor-to-scalar ratio r ≪ γ2 are predict...

In this paper, a fuzzy logic controller is proposed for an application of HVDC link to stabilize the frequency oscillation in a parallel AC – DC interconnected power systems. When an interconnected AC power system is subjected to a load disturbance, system frequency may be considerably disturbed and becomes oscillatory. By utilizing the system interconnections as the control channels of HVDC li...

This paper deals with Automatic Generation Control (AGC) of a two area reheat thermal system with modified area control error (ACEM) considering operation of the system in the continuous-mode and that of the controller in the discrete mode. ACEM is the weighted sum of frequency deviation, tie-power deviation and inadvertent interchange energy. Studies show that the AGC-strategy based on ACEM pr...

The dark matter in the universe can be in the form of a superheavy matter species (wimpzilla). Several mechanisms have been proposed for the production of wimpzilla particles during or immediately following the inflationary epoch. Perhaps the most attractive mechanism is through gravitational particle production, where particles are produced simply as a result of the expansion of the universe. ...

We discuss leptogenesis in a realistic supersymmetric model of inflation with a low reheat temperature 1-10 GeV. The lepton asymmetry is generated by a decaying right handed sneutrino, which is produced after inflation during preheating. The inflationary model is based on a simple variant of the Next-to-Minimal Supersymmetric Standard model (NMSSM) which solves the μ problem, called φNMSSM, whe...

The design of Automatic Generation Control (AGC) system plays a vital role in automation of power system. This paper proposes Hybrid Neuro Fuzzy (HNF) approach for AGC of two-area interconnected reheat thermal power system with the consideration of Generation Rate Constraint (GRC). The advantage of proposed controller is that it can handle the system non-linearities and at the same time the pro...

We discuss the production of dark matter with mass order 10--100 TeV and $\mathcal{O}(1)$ couplings to standard model, a scenario we refer as ``mesotuned WIMP.'' Given lack new physics observed at LHC, indicating live in world some degree fine-tuning, this scale is natural expect particles appear. However, range large difficult produce relic abundance via usual mechanisms. Here nonthermal show ...