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The paper illustrates the use of MATLAB/SIMULINK software for the modelling of D-statcom system. The dynamic behaviour of the system is learned by testing the basic system under large and small disturbances. The voltage sag mitigation associated with different configurations of the system is observed. To show the effect of controller on the voltage sag mitigation and reactive power compensation under...
In this paper, a load dispatch problem is solved to minimize the emission due to oxides of nitrogen (NOx), considering both thermal and wind generators. The effects of wind power to control overall emission of NOx substances are also investigated here. To find the optimum emission dispatch schedule, a newly developed optimization technique, Gravitational Search Algorithm (GSA) has been applied. GSA...
Analysis and technique for harmonic elimination is introduced in this paper. The proposed technique eliminates harmonics component from the periodic waveform and it requires only knowledge of fundamental frequency of the periodic waveform. This technique utilizes multipliers, unit delay, adder and subtractor. Adaptation process exactly matches amplitude and phase of fundamental frequency component...
In this paper work, a multi-objective Economic/Environmental power dispatch optimization problem is solved using evolutionary programming by using MAT-lab programming technique. The crux of the objective is to determine the most economic loadings of the generators, such that the required load demands of the generation can be met and the operation such as equality and inequality constraints of the...
The goal of a distribution power flow study is to obtain complete voltage angle and magnitude information for each bus in a power system for specified load and generator real power and voltage conditions. Once this information is known, real and reactive power flow on each branch as well as generator reactive power output can be analytically determined. Due to the nonlinear nature of this problem,...
This paper presents the development of design, modeling and simulation for variable speed wind turbine doubly fed induction generator are simulated through computer software tool using MATLAB/SIMULINK. A variable wind speed turbine doubly fed induction generator with power electronics interface is modeled for dynamic simulation analysis. The MATLAB/SIMULINK is provided to implements the wind turbine...
In deregulated electricity market, the power marketers share a common transmission network for transferring power from generating station to distribution station. All the market participants, in the open access environment wants to maximize their profit, so they try to obtain the electrical energy from the cheapest source, which may lead to congestion in the transmission network and affect the system...
This paper presents two modern approaches for solving economic dispatch (ED) problem considering piece wise quadratic cost function. Practical Economic dispatch problems have non-smooth fuel cost function with equality and inequality constraints which make it difficult to be effectively solved. In this paper modern heuristic methods such as shuffled frog leaping algorithm (SFLA) and harmony search...
In this paper, the operation of a Fuzzy Logic Controller with PSS controller is analysed in simulink environment. The development of a Fuzzy Controller with power system stabilizer in order to maintain stability and enhance the performance of a power system is described widely. The application of the Fuzzy Controller with PSS controller is investigated by means of simulation studies on a single machine...
As the biomass sourses are available around us is like waste but if this waste could use for producing electricity then it would be more beneficial for us because these sources are renewable. So in view of this if we examine the sewage we can see that there are biogases like methane, carbon dioxide etc.We can use these gases for producing electricity by the burning of these fuels. Another possible...
This paper proposes a large scale wind energy conversion system comprising a direct driven PMSG connected to the grid through a power electronic interface. The variable voltage variable frequency output from the wind generator is rectified, boosted and converted in to a fixed voltage fixed frequency output. The boost chopper maintains a constant DC at the inverter terminals. The modulation index of...
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