Saturday, January 22, 2011

PENGEMBANGAN SISTEM PENANGKAL PETIR DAN PENTANAHAN ELEKTRODA ROD DAN PLAT PADA LABORATARIUM TEKNIK KONVERSI ENERGI

   Oleh : Makmur saini, A.M.Siddiq, Andareas Pangkung
              Dosen Program Studi  Konversi  Energi
              Politeknik Negeri   Ujung .Pandang
                    Dibiayai Dikti  Rp 85 Juta (Penelitian  Hibah Bersaing  2009 dan 2010 )

Abstract
The particular aims of this research are to produce a lighting arrester system and its grounded which is largely applied in industry, for example lighting arrester system and grounded guardhouse, transmission couplingwire channel and is applied in multistage building, neither public nor private property. Whereas, the long term purposes of this research are to develop curriculum, syllabus, laboratory tools, and also to increase abilities and quantities of graduate student continuously neither in Politeknik site nor outside it.
In this research, the lighting arrester and grounded system are made. The lighting arresters in the outside of the building structure function as to capture or to receive thunderclap attach and transfer it to land safely. In this research there are 5 depth electrode variation are made, they are 3 meters, 5 meters, 9 meters, 12 meters, and 5 plat electrode large-variation, they are 1x1 meters2, 0,75x0,75meters2, 0,5x0,5meters2, 0,35x0,35meters2, 0,25x0,25meters2.

PENGEMBANGAN PERALATAN SIMULASI ALIRAN DAYA BERBASIS FAST DECOUPLED-DEPENDENT NEWTON-RAPHSON DENGAN PROGRAM INTERFACE-BASED DELPHI

 Oleh : Makmur saini, Remigius Tandioga, Andareas Pangkung
            Dosen Program Studi  Konvers Energi       
            Politeknik Negeri U.Pandang 
                  Dibiaya Dikti Rp 45 Juta (Penelitian  Hibah Bersaing 2008)

Abstract

On one hand, the particular objective of this research is to yield the software program in order to control efficiently the important aspects in electric power systems which can be implemented in industries. In the other hand, the long-term objective is to extend the curriculum, syllabi, laboratory facilities, and to improve the abilities and qualities of graduates continuously either within Ujung Pandang State Polytechnic or outside it. Method used to achieve these objectives is making, design and implementation which will be last two years respectively.

Automated Fault Analysis in the Indonesian Power Utility: A Case Study of South Sulawesi Transmission System

1. Mustarum Musaruddin
School of Electrical and Electronic Engineering
The University of Adelaide
Adelaide, Australia
e-mail : mustarum@eleceng.adelaide.edu.au
2 Rastko Zivanovic

School of Electrical and Electronic Engineering
The University of Adelaide
Adelaide, Australia
e-mail : rastko@eleceng.adelaide.edu.au


Abstract—Data recorded during faults in transmission network are used by control centre personnel to analyze the protection  system and to decide on remedial actions that will restore normal  network operation as fast as possible. The increasing number of  installed digital fault recorders (DFRs) and other intelligent electronic devices (IEDs) in substations has resulted in a large  number of fault records to be analyzed by the power system  engineer. Manual analysis of these records is both timeconsuming  and complex and for these reasons, many records may  not be examined and much of their potential value would be lost.  Determining how to make effective analysis of these records is a  challenge being faced by many power utilities. The main purpose  of this paper is to propose enhancements to the manual  investigation of faults and disturbances that currently are  performed by engineers in the Indonesian power utilities. In this  paper, a new software framework for Automated Fault Analysis  is proposed based on Application Service Provider (ASP) technology, which has lately received special attention in the development of distributed systems. Demonstrations of the  following services currently implemented in the ASP are  presented: signal pre-processing, fault analysis and protection  performance analysis. The fault scenario from South Sulawesi transmission system is investigated to test the feature of the services
 Keywords: Automated Fault Analysis; Application Service Provide 

Thursday, January 20, 2011

The Utilization of Digital Fault Recorders in Protection System Analysis on Tenaga Nasional Berhad Transmission System

IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 22, NO. 4, OCTOBER 2007

Abdullah Asuhaimi Mohd Zin, Senior Member, IEEE, and Sazali P. Abdul Karim

Abstract—The protection system is a very critical element in a power system. It is security to the power system for isolating only the faulty plant as fast as possible. A simple fault can lead to a cascade of tripping if it is not isolated accurately and fast enough by the protection system. Furthermore, protection system analysis is a  complicated task for inexperienced engineers. Most of the analysis relied mainly on the relay indications which could lead to incorrect analysis due to the uncertainty of the correct relay operations and  time tagging. Therefore, it is an urgent requirement to explore protection  system analysis to improve system reliability. This paper  describes a method of early detection of protection system failures  in Tenaga Nasional Berhad’s  Transmission Grid using digital fault  recorders. The method has demonstrated to be more accurate, thus
enabling faster decision making and shorter interruption time. Index Terms—Digital fault recorder (DFR), hidden failures, protection  system analysis (PSA).

The Application of Fault Signature Analysis in Tenaga Nasional Berhad Malaysia

IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 22, NO. 4, OCTOBER 2007

Abdullah Asuhaimi Mohd Zin, Senior Member, IEEE, and Sazali P. Abdul Karim

Abstract—Unplanned electrical power outages are a major concern to power utilities throughout the whole world. Unfortunately,power outages will continue to occur and they cannot be fully prevented.It could be the result of lightning strikes, tree encroachment,or equipment failure. However, the impact can be reduced
if power system operators are equipped with the appropriate tools to analyze the root cause of the failure. Without sufficient tools to identify the nature of a fault, the restoration process could be delayed because the operator does not know whether it is safe to normalize  the isolated line. This paper describes the new and simplified fault signature analysis approach on Tenaga Nasional Berhad  using a digital fault recorder. The research focuses on the contribution  of the lightning strike and tree encroachment to the overhead  line tripping in Malaysia.Index Terms—Blackout, digital fault recorder (DFR), fault signature  analysis (FSA).

Tuesday, January 18, 2011

A Survey of Particle Swarm Optimization Applications in Electric Power Systems

M. R. AlRashidi, Student Member, IEEE, and M. E. El-Hawary, Fellow, IEEE
Abstract—Particle swarm optimization (PSO) has received increased attention in many research fields recently. This paper presents a comprehensive coverage of different PSO applications in solving optimization problems in the area of electric power systems. It highlights the PSO key features and advantages over other various optimization algorithms. Furthermore, recent trends with regard to PSO development in this area are explored.
This paper also discusses PSO possible future applications in the area of electric power systems and its potential theoretical studies. Index Terms—Particle swarm optimization (PSO), power system control, power system operations

A New Optimizer Using Particle Swarm Theory

Russell Eberhart
Purdue School of Engineering and Technology
Indianapolis, IN 46202-5 160
eberhart@ engr.iupui.edu

 James Kennedy
Bureau of Labor Statistics
Washington, DC 20212
kennedyj @pol.ocsp.bls.gov

 ABSTRACT

The optimization of nonlinear functions using particle swarm methodology is described. Implementations of two paradigms are discussed and compared, including a recently developed locally oriented paradigm. Benchmark testing of both paradigms is described, and applications, including neural network training and robot task learning, are proposed. Relationships between particle swarm optimization and both artificial life and evolutionary computation are reviewed.