American Journal of Electrical and Electronic Engineering

ISSN (Print): 2328-7365

ISSN (Online): 2328-7357

Editor-in-Chief: Naima kaabouch

Website: http://www.sciepub.com/journal/AJEEE

   

Article

Electric Power Transmission Enhancement: A Case of Nigerian Electric Power Grid

1Electrical and Computer Engineering Department, North Carolina A&T State University, Greensboro NC, USA

2Electrical Engineering Department, University of Port Harcourt, PortHarcourt, Nigeria

3Electrical and Electronic Engineering Department, Federal University of Oye-Ekiti, Ekiti State Nigeria


American Journal of Electrical and Electronic Engineering. 2016, 4(1), 33-39
doi: 10.12691/ajeee-4-1-5
Copyright © 2016 Science and Education Publishing

Cite this paper:
Emmanuel U. Oleka, Samuel N. Ndubisi, Gerald K. Ijemaru. Electric Power Transmission Enhancement: A Case of Nigerian Electric Power Grid. American Journal of Electrical and Electronic Engineering. 2016; 4(1):33-39. doi: 10.12691/ajeee-4-1-5.

Correspondence to: Emmanuel  U. Oleka, Electrical and Computer Engineering Department, North Carolina A&T State University, Greensboro NC, USA. Email: eoleka@aggies.ncat.edu

Abstract

Increase in economic activities resulting from increase in population and social advancement has led to increase in electrical energy demands. This has increased the burdens on the existing transmission assets and in some cases, has caused the loading of the transmission assets beyond their design limits with consequent reduction in power quality and power outages in extreme cases. Many techniques have been developed to enhance the capabilities of the power grids. This paper looks into these techniques with the view to exploring their applicability to the Nigerian 330KV electric power grid, towards seeking ways to enhancing the performance of the grid for better asset utilization. A typical transmission line in the grid was modeled to assess its strengths and weaknesses. Enhancement techniques were then applied to assess their impacts on the line.

Keywords

References

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Article

Optimal Placement of D-STATCOMs into the Radial Distribution Networks in the Presence of Distributed Generations

1Department of Power System Engineering, Roudsar and Amlash Branch, Islamic Azad University, Roudsar, Iran

2Department of Electrical Engineering, Khodabandeh Branch, Islamic Azad University, Khodabandeh, Iran


American Journal of Electrical and Electronic Engineering. 2016, 4(2), 40-48
doi: 10.12691/ajeee-4-2-1
Copyright © 2016 Science and Education Publishing

Cite this paper:
Babak Safari Chabok, Ahmad Ashouri. Optimal Placement of D-STATCOMs into the Radial Distribution Networks in the Presence of Distributed Generations. American Journal of Electrical and Electronic Engineering. 2016; 4(2):40-48. doi: 10.12691/ajeee-4-2-1.

Correspondence to: Ahmad  Ashouri, Department of Electrical Engineering, Khodabandeh Branch, Islamic Azad University, Khodabandeh, Iran. Email: a_ashouri2007@yahoo.com

Abstract

This paper proposes a combination of Discrete Imperialistic Competition and Nelder-Mead algorithms to solve D-STATCOMs placement optimization problem. It is assumed that optimal number, locations and sizes of D-STATCOMs are determined in radial distribution network while Distributed Generations are previously installed in it. Indeed, we focus on voltage control and concept of reactive power management in annual scheduling time interval. Objective function is defined in terms of network active power losses and voltage stability characteristic at different load levels by appropriate weighting factors. Voltage Stability Index (VSI) is applied to identify the weak buses in radial distribution network. To validate performance and effectiveness of proposed DICA-NM hybrid algorithm, simulation studies are applied on the 30-bus IEEE radial distribution test feeder. Finally, numerical results for some important network variables have been compared in three different case studies.

Keywords

References

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Article

A Review on Hybrid Controller Using Soft Computing Algorithms

1Department of Electrical Engineering, IFTM University, Moradabad(U.P.), India

2Department of Electrical Engineering, ABESIT, Ghaziabad (U.P.), India


American Journal of Electrical and Electronic Engineering. 2016, 4(2), 49-61
doi: 10.12691/ajeee-4-2-2
Copyright © 2016 Science and Education Publishing

Cite this paper:
Lokesh Kumar Agrawal, Bhavesh Kumar Chauhan, G. K. Benerjee. A Review on Hybrid Controller Using Soft Computing Algorithms. American Journal of Electrical and Electronic Engineering. 2016; 4(2):49-61. doi: 10.12691/ajeee-4-2-2.

Correspondence to: Lokesh  Kumar Agrawal, Department of Electrical Engineering, IFTM University, Moradabad(U.P.), India. Email: lokesh_7575@rediffmail.com

Abstract

Aadaptability and self-organization of a system is two key factors, when it comes to how well the system is surviving for the changes to the environment and how these work within the plant. Different tuning methods and soft computing techniques improve these two factors in controllers. Considering the increasing complexity of dynamic systems along with their need for feedback controls, using more complicated controls has become necessary and these techniques can be a suitable response to this necessity. This paper briefly describes a review on different techniques used for PID tuning as well as soft computing algorithm for hybrid controllers. This paper provides a comprehensive reference source for people working with hybrid controllers.

Keywords

References

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