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All Journal Indonesian Journal of Electrical Engineering and Computer Science
Y.M.Y. Buswig
Universiti Malaysia Sarawak

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Enhance Cascaded H-Bridge Multilevel Inverter with Artificial Intelligence Control S.Y. Sim; C.K. Chia; W.M. Utomo; H.H. Goh; Y.M.Y. Buswig; A.J.M.S. Lim; S.L. Kek; A.A. Bohari; C.L, Cham
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 1: July 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v11.i1.pp105-112

Abstract

This paper proposed a 7-level Cascaded H-Bridge Multilevel Inverter (CHBMI) with two diffenrent controller, ie, PID and Artificial Neural Network (ANN) controller to improve the output voltage performance and achieve a lower Total Harmonic Distortion (THD). A PWM generator is connected to the 7-level CHBMI to provide switching of the MOSFET. The reference signal waveform for the PWM generator is set to be sinusoidal to obtain an ideal AC output voltage waveform from the CHBMI. By tuning the PID controller as well as the self-learning abilities of the ANN controller, switching signals towards the CHBMI can be improved.  Simulation results from the general CHBMI together with the proposed PID and ANN controller based 7-level CHBMI models will be compared and discussed to verifyl the proposed ANN controller based 7-level CHBMI achieved a lower output voltage THD value with a better sinusoidal output performance.
The Study of Stresses on Soil From Roadways Using Plaxis To Generate Potential Energy With Piezoelectric A.J.M.S. Lim; S.Y. Sim; Anting, N.; J. Prasetijo; T. I. T Noor Hasanah; H.H. Goh; Y.M.Y. Buswig; C.C. Kang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 2: August 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v11.i2.pp755-760

Abstract

Environmental resources exploitation is one of the critical problems in environmental engineering. The overuse of environmental resources can lead to a huge impact for the environment and human itself. The problems of extracting and processing of raw materials from earth such as mining, steam power and machinery has increased year by year and this is the main reason that the resources has become very limited for the future generations to use them. This study is focused in designing a roadway through software analysis which will use the concept of piezoelectricity that will convert the stress energy from the roadways into electrical energy. A software which is called PLAXIS 2D will be used to simulate the stresses from the roadway which are caused by moving vehicle loading. The parameters of laterite and clay soil such as Specific Gravity, Liquid Limit, Friction Angle and Cohesion are obtained from the past research is needed for the input of the software. The loading application in the PLAXIS 2D uses the Mohr-Coulomb failure criterion in which fully drained and axisymmetric conditions were assumed. A non-uniform grid with 1726 elements was performed for the calculations on a 2-dimensional cross-sections of 11m x 3m roadway. The stresses resulted from the software are used to determine the value of stresses required for the piezoelectric to convert the stress energy into electrical energy.
Co-Authors A.A. Bohari A.J.M.S. Lim A.J.M.S. Lim Anting, N. C.C. Kang C.K. Chia C.L, Cham H.H. Goh H.H. Goh J. Prasetijo S.L. Kek S.Y. Sim S.Y. Sim T. I. T Noor Hasanah W.M. Utomo