A quantized controller is a model-free controller which can provide a nonlinear control. This paper conduct a preliminary study on using the quantized controller in the Static VAR Compensators (SVC) control to enhance the damping of the power-swing. The test system used is a two area multi-machine system. A severe disturbance is introduced into the power system and the quantized controller cont...

The static var compensators SVC are FACTS devices in shunt connection which can be used for power system enhancement. The paper investigates a modern approach for SVC control using fuzzy logic based controller. The simulations and effects of shunt compensation on power system transmission stability are also presented. The SVC modeled in the paper is a TCR-FC type with two components: the thyris...

The main purpose of this paper is the use of the grey relational grade, GM(1,N) and GM(0,N) models as three new processes to systematically solve the problem of probability of gas breakdown and the suitable location of VAR compensator in feeding . It not only can provide a suggestion for decision-making, but also reduce the damage in a power system. In the past, the major research method for pr...

Voltage stability analysis is the major concern in order to operate any power system as secured. In this context there are many research work has been carried out to improve the voltage stability. This study demonstrates the use of latest Power System Analysis Toolbox (PSAT) package for network analysis of alternative means of improving existing transmission system voltage stability. This paper...

Voltage level of the system changes at the time of fault and the drop in the load voltage leads to an increased demand for the reactive power that, if not met by the power system leads to a further decline in the bus voltage. This decline eventually leads to a progressive rapid decline of voltage at that location, which may have a cascading effect on neighboring regions that causes voltage coll...

Voltage instability is gaining importance because of unusual growth in power system. Reactive power limit of power system is one of the reasons for voltage instability. Preventing Voltage Collapsesare one of the challenging tasks present worldwide.This paper presents static methods like Modal Analysis, Two Bus Thevenin Equivalent and Continuation Power Flow methods to predict the voltage collap...

A novel robust damping controller for a static var compensator (SVC) in a power system has been designed using a simple graphical technique. The graphical loopshaping method starts by selection of a nominal plant function satisfying the robust stability and performance criterion. The variations in operating conditions from the nominal values are modeled as multiplicative structured uncertainty....

The objective of this study is to analyse the most appropriate power factor billing methods for large power consumers. It compares average power factor (AVPF) vizá – viz coincidental power factor (CPF), which is currently being used for billing large power consumers. The study involved downloading data from large power energy meters for both energy and demand registers recorded for the past six...

In this paper, the Static Var Compensator (SVC) has been used to improve dynamic behaviour of power system. To do this, a new objective function is formulated considering power loss reduction, voltage profile improvement and loadability margin decrease. Other contribution of this research is proposing a novel structure for Particle Swarm Optimization (PSO) algorithm through modifying the initia...

This work presents a methodology, based on the modeling of an electrical power system test created in PSCAD/EMTDC simulation environment. The purpose is to evaluate, at first, impacts that Thyristor Controlled Series Compensator (TCSC) and Static Var (SVC) cause transient angular stability generators against disturbances, evaluating rotor displacement synchronous under analysis. In second momen...