Electric power system is exceptionally complex as far as its managing, construction and operation is concerned. In addition ever increase of electric power demand is making a process of managing, monitoring and controlling of electric power system more challenging day by day. Due to increased power demand congestion takes place in some of the lines. To remove congestion and improve loadability ...

Due to the increasing number of power electronics-based devices in modern systems, there are concerns about impact higher-frequency interactions on system stability. The typically-used algebraic representation networks fails capture these newly emergent issues, but dynamically modelling entire network with differential equations will lead a prohibitively long simulation time. This paper propose...

in this paper, we present a new method to determine the optimal location and parameter settings of unifiedpower flow controller (upfc) for removing voltage violations and transmission lines overloading. upfc isconsidered as the most powerful member of the facts devices, that it can control shunt and series power flow.this option gives to upfc the power to control the voltage profile and transmi...

The gradual expansion of power transmission networks leads to an increase in short-circuit current (SCC), which has impact on the secure operation when SCC exceeds interrupting capacity circuit breakers. In this regard, optimal switching (OTS) is proposed reduce while maximizing loadability with respect voltage stability. However, OTS model a complex combinatorial optimization problem binary de...

This paper presents a newly developed proximity indicator for voltage stability assessment which can be used to predict critical real system load and voltages at various buses loading point. The varies almost parabolic with total demand reaches orthogonally axis. relation has been utilized It shown that two operating points are needed estimating point proper selection of variation near collapse...

Generally during recent decades due to development of power systems, the methods for delivering electrical energy to consumers, and because of voltage variations is a very important problem ,the power plants follow this criteria. The good solution for improving transfer and distribution of electrical power the majority of consumers prefer to use energy near the loads .So small units that are co...

This paper proposes a Neural Network-Based method for on-line maximum loadability estimation, for an optimized power system voltage stability profile. A simulated annealing optimization technique for optimal voltage stability profile through out the whole power network was used. The minimization of the voltage stability index at each individual load bus as well as the global voltage stability i...

The introduction of flexible AC transmission system (FACTS) in a power system reduces the losses, reduces the cost of generation, and improves the stability also improves the load capability of the system. In this paper, a non-traditional optimization technique, genetic algorithm is used to optimize the various process parameters involved of FACTS devices in a power system The various parameter...