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CMODE (Combining Multi-objective Optimization with Differential Evolution) technique has been proved to be very efficient to design a low power low phase noise LC Voltage Controlled Oscillator (VCO). The proposed technique optimizes the power consumption and phase noise of the 3.3–4 GHz LC-VCO for GSM-900 standard. The performance indices are optimized by using CMODE technique in MATLAB and corresponding...
FOM (Figure Of Merit) is a novel performance yardstick of VCOs. Designing LC VCO circuit with desired specifications is highly time consuming and tedious job. In this paper CMODE (Combining Multi objective Optimization with Differential Evolution) optimization technique is used to design an LC VCO of optimal FOM with a target frequency of 2.5 GHz. The design parameters of LC VCO are obtained from...
The paper presents a new Fast Gauss-Newton algorithm (FGNWA) for the detection of islanding condition in distributed generation systems (DGs) when they are disconnected from the main supply system or there are small load unbalances in the distribution network. During islanding conditions power system parameters like frequency, voltage magnitude, phase change, total harmonic distortion, and various...
Optimal reactive power dispatch (ORPD) is one of the important non-linear problems in power system which includes both continuous and discrete control variables satisfying both equality and inequality constraints. In this paper, Adaptive Invasive Weed Optimization (AIWO) algorithm with parallel probabilistic search method is applied for better convergence of the optimization process and simultaneously,...
The main objective of this paper is to investigate the enhancement of damping power system oscillations under various operating conditions with static synchronous compensator (STATCOM). The design of STACOM controller is formulated as an optimization problem and an modified invasive weed optimization (MIWO) algorithm is employed to search for optimal controller parameters settings. In this paper,...
In this paper presents an algorithm for solving optimal power flow problem through the application of a modified differential evolution algorithm(MDE). The objective of an optimal Power Flow(OPF) is to find steady state operation point which minimizes total generating unit (thermal) fuel cost and total load bus voltage deviation from a specified point while maintaining an acceptable system performance...
The economic and environmental dispatch problem is formulated as a Non-linear constrained multi-objective problem with competing and non-commensurable objectives of fuel cost and emission. This paper presents a new multi-objective differential evolution algorithm. Initially, a non dominated sorting genetic algorithm is employed to obtain a set of pareto solutions followed by Multi-objective differential...
This paper proposes a new differential evolution optimization (DE) strategy namely, Self-Realized Differential Evolution (SRDE) for solving the economic dispatch (ED) problem with non-smooth cost functions in power systems. The proposed SRDE is in the structure of differential evolution owning new mutation operation and selection mechanism. An effective constraint handling method is presented in the...
This paper presents a robust non linear sliding mode controller(SMC) for VSC-HVDC transmission link in parallel with an AC transmission line connecting a synchronous generator to infinite bus. A non linear sliding mode controller has been proposed to provide voltage support by means of reactive control at both ends; to damp power oscillations and improve transient stability by controlling either active...
Dynamic economic dispatch (DED) is one of the main functions of power system operation and control. It determines the optimal operation of units with predicted load demands over a certain period of time with an objective to minimize total production cost while the system is operating within its ramp rate limits. This paper presents DED based on Invasive Weed Optimization (IWO) technique for the determination...
Field programmable gate array (FPGA) is a widely used programmable integrated circuit (IC) for fast realization of digital circuits in all electronic systems. Its reconfigurability has made this mode of digital circuit synthesis more popular among the system designers. But unlike other ICs it provides a restricted hardware structure for circuit implementation and hence the computer aided design (CAD)...
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