This website uses cookies to ensure you have the best experience.

Security Based Volt/Var Control In Distribution System In Presence Of Distributed Generators Using Teaching Learning Based Optimization

925 words - 4 pages

Voltage and reactive power control in distribution networks means appropriate operational planning of on-load tap changer and all of switched shunt capacitors on the network to achieve an appropriate voltage profile and reactive power flow due to the constraints and objective functions are considered in the optimization problem.
The growth of distributed generation based on Renewable Energy Sources in distribution networks, an important influence on the voltage and reactive power control as one of the most important duty of distribution network operator. The small X/R ratio of distribution line and radial structure of distribution network, the effect of these resources on the problem of ...view middle of the document...

present a method for volt/var control to dispatch OLTC, substation capacitor and feeder capacitors based forecasts hourly load such that the total feeder loss can be minimized, voltage profile can be improved and reactive power flow into maim transformers can be checked [3]. Besides these, researchers have dealt with this problem in the presence of distributed generation. For example, Niknam et al. proposed a price based approach for volt/var control in distribution system using Distributed Generation (DG) units [4]. Zare et al. present a multiobjective volt/var control in distribution network including renewable energy resources for environmental and economic management. The objective function of this model, including conflicting functions; i.e. the electrical energy losses, the voltages deviations, the total electrical energy costs and the total emissions of RESs and substations [5]. In [6] azimi et al. presented a multiobjective daily volt/var control in distribution system, including distributed generation units. The main purpose is to determine optimum dispatch for OLTC and shunt capacitors based on the day-ahead load forecast. Although most studies have focused on the optimization of distribution network losses and voltage profile but little of these studies is included optimum performance capacitors and transformers [10]. Since many mathematical techniques such as dynamic programming, gradient and sensitivity analysis is proposed to solve the voltage and reactive power control problem [13]. Due to the multi-phase nature of the problem and the non-linearity of the objective functions, mathematical methods are complex and require heavy computational volume. Hence, today an evolutionary algorithm is used to solve this problem [9-12]. For example, ulinuha et al. presented a hybrid genetic-fuzzy algorithm (GA-Fuzzy) for optimal volt/var/total harmonic distortion control in distorted distribution system serving non-linear loads [7]. In ref. [8] niknam...

Find Another Essay On Security based volt/var control in distribution system in presence of distributed generators using teaching-learning-based optimization

Simulation-Based Learning in Nurse Education Essay

1208 words - 5 pages clinical experiences: Evaluation with baccalaureate nursing students. Journal of Nursing Education, 43(4), 156-163. Guillaume, A., Gordon, R., Harwood, C., Hunt, B. (2006). Effectiveness of intermediate-fidelity training technology in undergraduate nursing education. Issues and Innovations in Nursing Education. H. Al-Elq, (2010),Simulation-based medical teaching and learning Simulation-based medical teaching and learning Family Community Med

VaR is a method of assessing risk that uses standard statistical tehniques routinely used in other tehnical fields. Based on firm scientific foundations, VaR provides users with a summary measure of...

3789 words - 15 pages tails are particulary worrisome precisely because VaR attempts to capture the behavior of the portfolio return in the left tail. In this situation, a model based on a normal distribution would underestimate the proportion of outliers and hence the true value at risk. Some of these fat tails can be explained in terms of time variation in risk. However, even after adjustement, there are stil too many observations in the tails. A simple ad hoc

Pareto-Based Multi-Stage and Multi-Objective Planning of DG Enhanced Distribution System

767 words - 4 pages Index Terms—Distributed generation, evolutionary algorithm, optimum reclosers placement, protection system planning, theory of the firm optimization. I. INTRODUCTION HE main purpose of the planning stage and operation of a power distribution feeder is to satisfy the energy demand as economically as possible, ensuring acceptable indices of quality and continuity of the service [1]. Nevertheless, previous objectives are in conflict whereas the

“Development of a Green Composite based on PLA/Starch Blends and Blue Agave fibres (Agave Tequilana Weber var. Azul) for its use in Food Packaging

1407 words - 6 pages as a possible solution to the problems that oil based materials represent. One of the largest consumer products producer Procter & Gamble announced in 2010 a initiative to reduce its packaging use towards a sustainable agenda; using recyclable or renewable produced materials with a final goal of eliminate all fosil-fuel-based virgin plastics use (7). Studies conducted with polylactic acid (PLA) and Starch based blends, present these materials

Pareto-Based Multi-Stage and Multi-Objective Planning of DG Enhanced Distribution System

919 words - 4 pages indices and minimizing investment. Identified stages of this planning comprehend infrastructure outline and protection system shaping. In accordance with the literature, optimal planning of distribution systems (DS) toward suitable reliability performance, is a complex problem because its optimization stages are described by non-linear and non-differentiable objective functions, as well as combinatorial solutions. Traditionally, the planning has been

Advanced Adaptive Particle Swarm Optimization based SVC Controller for Power System Stability

1240 words - 5 pages Dispatch using Bacterial Foraging Technique with Particle Swarm Optimization Biased Evolution”. [18] Jin-zhu Hu, Jia Xu, Jin-qiao Wang, Ting Xu ‘Research on Particle Swarm Optimization with dynamic inertia weight’. [19] D.Harikrishna,N.V.Srikanth,”Unified Phillips-Heffron Model of Multi Machine Power System equipped with PID Damping Controlled SVC for Power Oscillation Damping.” [20] J. Kennedy and R. Eberhart, “Particle swarm optimization,” in

Problem Based Learning as an Effective Tool for Teaching

967 words - 4 pages Problem Based Learning as an Effective Tool for Teaching Computer Network Design Overview : In this paper we discussed about challenges that are faced in teaching computer network design using problem based learning as an effective tool. Here we discussed, where it has been introduced first and the techniques that are used in teaching computer network design. A two threaded approach is used

Teaching Respiratory Therapy through Problem Based Learning Approach

2422 words - 10 pages pertinent to healthcare professions due to the fact that it encourages reflective and critical thinking and establishes a connection between theory and practice (Beers, 2005; Rogal & Snider, 2008). The teaching of critical thinking with problem-based learning is achieved by utilizing evidence based approaches to solving clinical problems presented in the classroom that are similar to that which would be found in real life clinical settings (Mishoe

Multi-objective Reconfiguration of Electrical Distribution Networks Using Multi-Objective Cat Swarm Optimization Algorithm

989 words - 4 pages EDSs are mainly designed meshed but operated radially for some technical and financial concerns. Distribution networks can be represented with a graph in ordered pairs consisting of a set of vertices, i.e. buses and a set of edges, i.e. branches; in terms of mathematics this equivalents to a sparse matrix which its non-zero elements signifies the existence of an edge in the system. On this basis a typical distribution network is radial if

Activity Based Learning

1246 words - 5 pages Activity based learning is a teaching style that actively engages all students in the learning process within the classroom and immerses them within the material. Contrary to normal teaching styles where information is given to students and they must decide how to process it and take the learning aspect into their own hands, activity based learning provides the students with learning content that is easily understandable to all types of learners

Work Based Learning

3449 words - 14 pages and collective activity, one in which people talk about their ideas, and deal out problems and solutions. Finally, work-based learning is not only about the gaining of unsullied knowledge but it is also about the realization of huge ability to learn. In this report we will try to give a picture of the different understandings of Work-Based Learning with concept and issues. That says that Work-based learning includes actively using the workplace as

Similar Essays

Efficacy Of Project Based Learning In Education

2045 words - 9 pages environment. Even though there is not much research in the successful implementation of active learning in ICT. A student oriented feedback based approach coupled with a periodic check on learning milestones can be used to build an effective model for experiential learning. The importance of these checks can be extended to promote an equal distribution of learning outcomes.

Knowledge Based Expert System In Transportation Engineering And Traffic Adaptive Signal Control System

1462 words - 6 pages Knowledge Based Expert System in Transportation Engineering and Traffic Adaptive Signal Control System I. Abstract Advances in computer technologies have been changing transportation field. Based on those, Intelligent Transportation System has been proposed and being developed for the next generation transportation system. This system requires more utilization of Artificial Intelligence, such as Knowledge Based Expert System, than current

Enhancing Performance And Security In Vanet Based Traffic Message Dissemination With Pragmetic Cost And Effect Control

1274 words - 6 pages effect control. Other Information’s can also be transmitted but only on demand with the help of threshold value when requested by higher authorities. Thus Clearance Center (CC) and Authority are used for providing authentication details about the vehicles when it enters the network with the help of RSU. EXISTING APPROACH In existing system, Traffic density is calculated only based on the number of slow vehicles detected. Event Driven Architecture

Inquiry Based Learning In The Current Trend

1705 words - 7 pages role model in encouraging this Inquiry Based Learning in the classroom. This occurs during lessons as it prompts students into learning. Akkus, Gunel and Hand argued that ‘changing teacher practices from perceived traditional ways of teaching to more inquiry based approaches is to gain the effectiveness of inquiry’ (2007). The University of Oregon, Udovic conducted a research whereby students from a traditional biology class results achieved passive