Showing papers in "Electric Power Systems Research in 2010"

TL;DR: In this article, an extended responsive load economic model is developed based on price elasticity and customer benefit function, which is used for selecting and prioritizing demand response (DR) programs.

TL;DR: In this paper, an evolutionary-based approach to solve the optimal power flow (OPF) problem is presented, which employs differential evolution algorithm for optimal settings of OPF problem control variables.

TL;DR: In this paper, a review of the research of the optimal power dynamic dispatch problem is presented, and an overview on the mathematical optimization methods, Artificial Intelligence (AI) techniques and hybrid methods used to solve the problem incorporating extended and complex objective functions or constraints.

TL;DR: In this paper, the authors present an up-to-date overview of wind power balancing costs and their impact on power systems, including the integration cost of large-scale wind power integration.

TL;DR: In this article, a modified Tabu Search (MTS) algorithm is used to reconfigure distribution systems so that active power losses are globally minimized with turning on/off sectionalizing switches.

TL;DR: The results demonstrate the capability of the proposed MODE approach to generate well-distributed Pareto optimal non-dominated solutions of multi-objective EED problem and confirms its potential for solving other power systems multi- objective optimization problems.

TL;DR: In this paper, a direct-current based d-q vector control technique is proposed by integrating fuzzy, adaptive and traditional PID control technologies in an optimal control configuration for a direct driven PMSG wind turbine.

TL;DR: In this paper, an optimal proposed approach (OPA) is presented to determine the optimal sitting and sizing of DG with multi-system constraints to achieve a single or multi-objectives using GA.

TL;DR: In this paper, a discrete-time sliding mode controller for load-frequency control (LFC) in control areas (CAs) of a power system is presented, which can be applied for LFC not only in CAs with thermal power plants but also in CA with hydro power plants, in spite of their non-minimum phase behaviors.

TL;DR: In this article, a comprehensive illustration of transformer asset management activities is presented and the importance of each activity together with the latest researches done in the area is highlighted, and efforts are being directed to explore new approaches/techniques of monitoring, diagnosis, condition evaluation, maintenance, life assessment and possibility of extending the life of existing assets.

TL;DR: In this paper, the authors proposed an approximation that makes use of the properties of statistical moments and Cornish-Fisher expansion to tackle the new problems of probabilistic load flow.

TL;DR: In this paper, a review of the state-of-the-art control methods applied to parallel power electronic inverters is presented, including master/slave control, current/power sharing control, and frequency/voltage droop control.

TL;DR: In this paper, a new method for electricity demand load forecasting using the multi-model partitioning theory is presented, and compared with three other well established time series analysis techniques namely Corrected Akaike Information Criterion (AICC), AKAike's information Criterion(AIC) and Schwarz's Bayesian Information Criteria (BIC).

TL;DR: Experimental results indicate that the proposed SVM classifier is robust and has more high classification accuracy with regard to the other approaches in the literature for this problem.

TL;DR: In this paper, a control scheme of a variable-speed wind turbine with a permanent-magnet synchronous generator (PMSG) and a back-to-back voltage source converter is presented.

TL;DR: In this paper, a new approach to the electricity generation expansion problem is proposed to minimize simultaneously multiple objectives, such as cost and air emissions, including CO2 and NOx, over a long term planning horizon.

TL;DR: In this article, the integration of single-phase charging devices for electric vehicles (EV) in lowvoltage microgrids is addressed, where different control strategies are developed and tested (a local control approach where no communication link is required and a centralized charging control solution).

TL;DR: In this paper, the continuously increasing application of distributed photovoltaics (PV-DG) in residential areas around the world calls for detailed assessment of distribution grid impacts.

TL;DR: A new approach for the detection and classification of single and combined power quality (PQ) disturbances is proposed using fuzzy logic and a particle swarm optimization (PSO) algorithm.

TL;DR: In this paper, the authors investigated the low voltage ride-through (LVRT) control of wind turbines with doubly fed induction generators (DFIGs) under symmetrical voltage dips.

TL;DR: In this paper, the power quality can be improved in a microgrid that is supplying a nonlinear and unbalanced load by using a decentralized power sharing algorithm to control its power management.

TL;DR: In this paper, a probabilistic model for load and wind power uncertainty is proposed to simulate the status of units that are directly affected by wind power generation uncertainties, and a solution method for generation scheduling of power system is developed to make decision on fixed state of units operation in different scenarios which can be employed efficiently in unit scheduling.

TL;DR: In this paper, a differential evolution (DE) algorithm is developed to solve emission constrained economic power dispatch (ECEPD) problem, which attempts to reduce the production of atmospheric emissions such as sulfur oxides and nitrogen oxides, caused by the operation of fossil fueled thermal generation.

TL;DR: In this article, a hot water heater model is proposed to predict the on/off state of the water heater and the temperature of water in the tank, which enables the development of water usage profiles so that users can be classified based on usage behaviour.

TL;DR: In this article, a simplified two-branch model is introduced to characterize the electrical behavior of double layer capacitors (DLCs), which is similar to some models in literature from a circuit point of view, but the parameters identification process is easier and faster.

TL;DR: In this paper, a new framework included mathematical model and a new software package interfacing two powerful softwares (MATLAB and GAMS) for obtaining the optimal distributed generation (DG) capacity sizing and sitting investments with capability to simulate large distribution system planning.

TL;DR: In this paper, a visual optimization approach was proposed to determine the optimal siting and sizing of the DG through the choice of the appropriate weight factors of the parameters included in the optimization technique according to the system deficiencies.

TL;DR: In this paper, the authors apply the point estimate method to account for the uncertainties that affect the evaluation of the steady state operating condition of an unbalanced three-phase power system.

TL;DR: In this paper, a modified adaptive particle swarm optimization (MAPSO) is proposed to solve the problem of daily hydrothermal generation scheduling (DHGS), which is a non-linear, non-convex and non-smooth optimization problem with discontinuous solution space.

TL;DR: In this article, the use of Fuzzy logic and non-switching zone schemes for implementing variable size perturbations for improved transient and steady-state responses is discussed, and the potential performance of four different P&O algorithms is investigated by means of simulations.