A new method for optimal location and sizing of capacitors in distorted distribution networks using PSO algorithm

Taher, Seyed Abbas; Karimian, Ali; Hasani, Mohammad

doi:10.1016/j.simpat.2010.09.001

Cited by 43 publications

(26 citation statements)

References 28 publications

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“…[18]. Figure 9 shows that the algorithm proposed in [18] without distributed generation reduces harmonic distortions of all buses and attains the permitted values. However, if the mentioned wind power is added, some buses' harmonic distortions will be still more than the permitted value.…”

Section: Simulation Resultsmentioning

confidence: 88%

“…Therefore, capacitor placement should be done considering harmonics in order to prevent boosting harmonic currents by capacitor banks. Considering the importance of nonlinear loads, the capacitor placement problem has been studied [16][17][18]. Most of methods that were presented for solving this problem assumed a network in sinusoidal mode and neglected the coupling between the lines' impedance at harmonic frequencies.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A new method to reduce the adverse effects of wind power on power quality using reactive power compensating capacitors

Zahedi¹,

Amini²,

Falaghi³

2016

Turk J Elec Eng & Comp Sci

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Abstract:The usage of distributed generation resources, particularly distributed generation with renewable sources, has increased to generate electrical power close to consumers. One of the factors that can reduce penetration of distributed generation resources is the limitation of power quality, such as harmonic distortions. Distributed generation sources, in addition to producing power, due to using of power electronic converters and changing the power flow, increase harmonic currents. On the other hand, local compensation of reactive power by parallel capacitor banks is one of the effective methods to reduce power system losses and harmonic distortions. Since the capacitor impedance varies at different frequencies and resonance can be produced at harmonic frequencies, providing an efficient method to optimize capacitor banks' placement in the presence of nonlinear loads and distributed generation is important. In this paper, first the adverse effects of distributed generation on power system harmonic distortions and therefore on power quality are illustrated by experiments. The problem of the optimal capacitor placement in the presence of nonlinear loads and distributed generation (wind power) is then expressed as a fuzzy multiobjective model. In the proposed model, annual profit maximization resulting from loss reduction, bus voltage deviation minimization, and reduction of power system harmonics are considered as optimization objectives. The presented model is solved with a PSO algorithm and a special version of the backward-forward sweep considering the system harmonics. Efficiency of the proposed model is demonstrated by running experiments on an 18-bus IEEE distributed network.

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Section: Simulation Resultsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

A new method to reduce the adverse effects of wind power on power quality using reactive power compensating capacitors

Zahedi¹,

Amini²,

Falaghi³

2016

Turk J Elec Eng & Comp Sci

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show abstract

“…PSO is considered robust in solving problems featuring non-differentiability, non-linearity, and high dimensionality [25] and is used in neural networks [26].…”

Section: A the Standard Particle Swarm Optimization Algorithmmentioning

confidence: 99%

An Evolutionary Stochastic Approach for Efficient Image Retrieval using Modified Particle Swarm Optimization

Heidari¹,

Chalechale²

2016

ijacsa

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Abstract-Image retrieval system as a reliable tool can help people in reaching efficient use of digital image accumulation; also finding efficient methods for the retrieval of images is important. Color and texture descriptors are two basic features in image retrieval. In this paper, an approach is employed which represents a composition of color moments and texture features to extract low-level feature of an image. By assigning equal weights for different types of features, we can't obtain good results, but by applying different weights to each feature, this problem is solved. In this work, the weights are improved using a modified Particle Swarm Optimization (PSO) method for increasing average Precision of system. In fact, a novel method based on an evolutionary approach is presented and the motivation of this work is to enhance Precision of the retrieval system with an improved PSO algorithm. The average Precision of presented method using equally weighted features and optimal weighted features is 49.85% and 54.16%, respectively. 4.31% increase in the average Precision achieved by proposed technique can achieve higher recognition accuracy, and the search result is better after using PSO.

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“…In [14], similar to [13], this work was performed using PSO. Hybrid PSO (HPSO) has been used to solve OLSC problem in unbalanced distribution in the presence of harmonics in [15].…”

Section: Introductionmentioning

confidence: 99%

Optimal Location and Sizing of Shunt Capacitors in Distribution Systems by Considering Different Load Scenarios

Dideban¹,

Ghadimi²,

Ahmadi³

et al. 2013

Journal of Electrical Engineering and Technology

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-In this work, Self-adaptive Differential Evolutionary (SaDE) algorithm is proposed to solve Optimal Location and Size of Capacitor (OLSC) problem in radial distribution networks. To obtain the SaDE algorithm, two improvements have been applied on control parameters of mutation and crossover operators. To expand the study, three load conditions have been considered, i.e., constant, varying and effective loads. Objective function is introduced for the load conditions. The annual cost is fitness of problem, in addition to this cost, CPU time, voltage profile, active power loss and total installed capacitor banks and their related costs have been used for comparisons. To confirm the ability of each improvements of SaDE, the improvements are studied both in separate and simultaneous conditions. To verify the effectiveness of the proposed algorithm, it is tested on IEEE 10-bus and 34-bus radial distribution networks and compared with other approaches.

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A new method for optimal location and sizing of capacitors in distorted distribution networks using PSO algorithm

Cited by 43 publications

References 28 publications

A new method to reduce the adverse effects of wind power on power quality using reactive power compensating capacitors

A new method to reduce the adverse effects of wind power on power quality using reactive power compensating capacitors

An Evolutionary Stochastic Approach for Efficient Image Retrieval using Modified Particle Swarm Optimization

Optimal Location and Sizing of Shunt Capacitors in Distribution Systems by Considering Different Load Scenarios

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