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INDONESIA
Indonesian Journal of Electrical Engineering and Computer Science
Published by Institute of Advanced Engineering and Science
ISSN : 25024752     EISSN : 25024760     DOI : -
Core Subject :
Arjuna Subject : -
Articles 9,226 Documents
 238   239   240   241   242 
Nodes Deployment Scheme of Heterogeneous Wireless Sensor Network Based on Organic Small Molecule Model Juwei Zhang; Yu Wang; Yachuang Liu; Qiangyi Li
Indonesian Journal of Electrical Engineering and Computer Science Vol 16, No 3: December 2015
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v16.i3.pp574-582

Abstract

For nodes deployment of heterogeneous sensor network, based on different probability sensing models of heterogeneous nodes, refer to organic small molecule model, ‘class molecule’ sensing model of heterogeneous nodes is proposed. Combined with DSmT data fusion model, the changes of network coverage ratio after using the new sensing model and data fusion algorithm is studied. According to the research results, the node-deployment strategy of heterogeneous sensor networks based on organic small molecule model (NHOS) is proposed. Sensor network simulation model is established using MATLAB software, the results show the effectiveness of the algorithm, the coverage of network and detection efficiency of nodes are improved, the lifetime of network is prolonged, energy consumption and the number of deployment nodes is reduced, and the scope of perceiving is expanded. As a result, NHOS can improve the detection performance of the network.
The Research of Design Dynamics on Behavior Flow Ecosystem Hao Yongtao; Chen Bihuan; Lou Diming
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

We analyze the current product design modeling background and status, combined with the design dynamics, propose more intelligent design of the product behavioral modeling. by analogy Ecosystem, proposed the concepts and design framework product flow behavior and product behavior flow of the ecosystem. Proposed the concepts of design entropy flow and conservation in design dynamics, put forward a hybrid Petri nets to describe the flow behavior and formal product ecosystem model, a hybrid Petri net is given to the behavior flow ecosystem model and analyze engine and the design entropy. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3552
An Optimization Model of Coal Allocation in a Group Jianjian Zhao; Yunhua Gan; Xiaoqian Ma; Zeliang Yang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 5: May 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The frame of an optimization model of coal alloction in a power generation group was introduced in present study. The influence of multi-coals blending and transportation were all considered in the model. Firstly, the impact of each process of coal using on the cost of power generation and boiler safety in the combustion process were analyzed, and the detailed mathematical descriptions were given. A multi-coals blending mathematical model based on safty, environmental protection and cost was proposed. The optimization model of coal transportation in the power generation group to achieve the most benefit was established. The algorithms of these models were studied and found that the genetic algorithm is one of the suitable methods to solve the models. An optimaiztion system for the coal allocation in the power generation group was developed based on the models and algorithms. The system adopts friendly software structure and can provide personalized functions for the power generation group and power plants. DOI : http://dx.doi.org/10.11591/telkomnika.v12i5.5107
Rotor Speed and Stator Resistance Identification Scheme for Sensorless Induction Motor Drives Zicheng Li; Zhouping Yin; Youlun Xiong; Xinzhi Liu
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 1: January 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper proposes a rotor speed identification method for sensorless induction motor drives based on a model reference adaptive system (MRAS). In this scheme, the error between estimated stator current and real stator current is regarded as the system error to estimate the rotor speed. Adaptive full-order flux observers for estimating the rotor speed are developed using Lyapunov’s stability theory. The stator resistance identification algorithm is developed with rotor speed estimating method in a systematic manner. Because of the stator resistance varies with inner temperature of the motor, the influence of motor speed estimation due to stator resistance identification error is analyzed. The error compensation method for stator resistance estimation is also proposed. Simulation and experimental results show the good performance for the proposed scheme in speed and robustness for sensorless induction motor drives. DOI: http://dx.doi.org/10.11591/telkomnika.v11i1.1865
Integrated Engineering Project Management Approach for Typical Small to Medium Manufacturing Companies Erry Yulian Triblas Adesta; Mohammed Abdullah K B; Yahya A Alazemi
Indonesian Journal of Electrical Engineering and Computer Science Vol 8, No 2: November 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v8.i2.pp541-545

Abstract

The aim of this paper is to identify the problem extents and successfully applying project management in SMEs with a focus on manufacturing industries. The organization of the study was mainly divided into the activity of literature study and the investigation through a survey conduct aimed to measure the awareness and implementation of project management at the selected SMEs in Malaysia. The questionnaire was designed with a section (Section A) involving project management in general and another section (Section B) involving the implementation of it. It was found that the level of awareness and implementation of project management especially in the selected small and medium manufacturing companies in Malaysia was quite satisfying. Most of the manufacturing companies were implementing project management, but the level was depending on the organization in the company itself. 
Design and implementation of a smart monitoring system for water quality of fish farms Nahla Abdul Jalil Salih; Ihsan Jabbar Hasan; Nadhir Ibrahim Abdulkhaleq
Indonesian Journal of Electrical Engineering and Computer Science Vol 14, No 1: April 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v14.i1.pp44-50

Abstract

Fish farms are one of the most important sources of profitability for farmers. Therefore, these farms must be cared for and monitored continuously. the paper discuss  a smart system monitoring in a new way that we designed to monitor the quality and temperature of the fish pond’s water. This system has been designed and implemented to measure and monitor the pH and the temperature value of the fish pond’s water in real time. The system is divided into a measuring and monitoring part. The measuring part uses Arduino UNO as a microcontroller to measure the pH and temperature from the sensors. The data is then sent to the second part by Bluetooth. The second part (the monitoring part), is a new  application for smartphone  designed by ‘MIT App Inventor 2’, which monitors the status of the full system. The ‘MIT App Inventor 2’ is a google software (opensource) that enables you to easily build an Android application. The main advantage of this system is its ability to monitor the fish farms from long distances, with low cost and high reliability.
The Research on Control Method of Variable Speed System of Permanent Magnet Synchronous Motor Li Qian-Yu; Zhang Rui-Ping; Xiong Jian
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 9: September 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i9.pp6573-6578

Abstract

In order to solve the problem that the traditional PI controller can not meet the high performance speed control requirement of permanent magnet synchronous motor, the fuzzy control theory is applied to the speed loop of speed control system of permanent magnet synchronous motor, and realized the parameters tuning in real time of PI controller. Finally, by means of the simulation experiment, the solution verified the new fuzzy PI control system has good robustness to the system load and disturbance.
Design of a Parallel and Distributed Network Security Simulation Platform Songchang Jin; Songhe Jin; Shuqiang Yang; Xiang Zhu
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 6: June 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

With the rapid development of computer science and technology, network attack and defense has become an important research topic in the field of information security. Teaching on network attack and defense technology in universities and research institutions has a very strong experimental characteristic, but due to the special nature and the destructive characteristic of network attack and defense technology, it is difficult to carry out experiments. In this paper, we designed and implemented a parallel and distributed network security experiments platform on which experiments can be carried out through a web interface and network simulation scripts. We believe that it is also an excellent platform for teaching courses in operating systems and networking. The results of experiments in this paper show that the platform could provide the laboratory personnels with independent experimental environment, perfect experimental control functions, excellent data collection and analysis services, etc. DOI: http://dx.doi.org/10.11591/telkomnika.v11i6.2666
Effect of optimal Multi-DG siting and sizing in transmission system using hybrid optimization technique for voltage control Sharifah A. Shaaya; Ismail Musirin; Shahril I. Sulaiman; Mohd H. Mansor; Sharifah A. S.Mustaffa
Indonesian Journal of Electrical Engineering and Computer Science Vol 17, No 2: February 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v17.i2.pp646-653

Abstract

The advancement of Distributed Generation (DG) technologies have caused great impact to power system operation. Inappropriate installation of DGs may lead to over-compensation or under-compensation situation. Thus, a reliable optimization is urgent to avoid any unwanted effect. This paper analyses the installation impact of different types-multi-DGs determined using a pre-developed hybrid optimization technique termed as Immunized-Brainstorm-Evolutionary Programming (IBSEP). It is imperative to study the effect of multi-DGs installation such that a relevant utility can make a correct decision, whether its installation is worth or vice versa. Rigorous study has been conducted in terms of identifying the optimal location and sizing, installed on transmission system for voltage control involving different DG types. Comprehensive results are embedded in this paper to demonstrate the effect of multi-DGs installation in transmission system which in turns beneficial to the utility.
Transient Stability Analysis of Grid-connected Wind Turbines with Front-end Speed Control via Information Entropy Energy Function Method Haiying Dong; Shuaibing Li; Shubao Li; Hongwei Li
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 1: January 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

According to the characteristics like time-consuming and can not be quantitatively analyzed of time domain simulation in power system transient stability analysis, a direct method using information entropy combined with transient energy function method is proposed in this paper to analyze the transient stability of wind power system equiped with front-end speed controlled wind turbines (FSCWT) with synchronous generators. In which, the system kinetic energy and potential energy are used as information source to makeup information entropy function, then, a theoretical analysis of system transient stability is conducted. Based on this, simulations are carried out in IEEE 5-machine 14-bus system compared with the time domain’s, which verified the consistency of information entropy energy function (IEEF) method and time domain analysis. Results show that it is more intuitively and effectively to use IEEF method for wind power system transient analysis equiped with FSCWT.DOI : http://dx.doi.org/10.11591/telkomnika.v12i1.3379

Page 240 of 923 | Total Record : 9226

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