This work is devoted to the research of real-time estimation 500 kV power transmission lines parameters with PMU based on solution optimization problem minimizing root-mean-square deviations specific line or sum modules correlation coefficients between and squares voltages currents measured at ends line. Independent variables are correction factors measuring systems voltages. Based an artificia...

This paper proposes a two way L and S band Gysel power divider/combiner that uses line to ground resistors. Step by step methods to obtain a wide isolation and transmission bandwidth are presented. A design that uses five resistors is selected and optimized based on Quasi Newton method. Then the Defected Microstrip Structure (DMS) and Defected Ground Structure (DGS) is used to obtain better tra...

To meet with the ever-enhancing load demands, new transmission lines should be bolted-on in the existing power system but the economic and environmental concerns are major constraints to this addition. Hence utilities have to rely on the existent power system infrastructure with some modifications. To enhance controllability and boost power transfer potential of the existing power system the us...

In this paper power system model is represented in a new domain that relates to Multi-Resolution Analysis (MRA) space. By developing mathematical model of elements in this space using Galerkin method, a new alternative method for power system simulation in nonsinusoidal and periodic conditions is developed. The mathematical formulation and characteristics of new proposed space is expressed. Als...

− The results of exact time domain analysis of the switched-mode tuned Class E power amplifiers with a quarterwave transmission line are presented with analytical determination of the optimum load network parameters. Effects of the quarterwave transmission line and collector capacitance on the current and voltage waveforms are discussed and analyzed. The ideal collector voltage and current wave...

In this paper, dual-frequency O-shaped 3-way Bagley power divider is designed and analysed. Equal split power division is achieved at arbitrary design Frequencies. In this structure, two-section transmission line transformer is used to realize the dual-frequency operation. This paper describes a new Bagley power divider on a single-layer micro strip line that can reduce the occupied area. To va...