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All Journal International Journal of Electrical and Computer Engineering Indonesian Journal of Electrical Engineering and Computer Science
Aede Hatib Mustaamal
Universiti Teknologi Malaysia
Computer Science & IT Electrical & Electronics Engineering

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Harmonic Suppression of Shunt Hybrid Filter Using LQR-PSO based Nor Shahida Hasan; Norzanah Rosmin; Saifulnizam Abd Khalid; Dygku. Asmanissa Awg. Osman; Baharuddin Ishak; Aede Hatib Mustaamal
International Journal of Electrical and Computer Engineering (IJECE) Vol 7, No 2: April 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (470.841 KB) | DOI: 10.11591/ijece.v7i2.pp869-876

Abstract

In linear quadratic regulator (LQR), two different weighting matrices play an important role in presenting the performance of this controller. Instead of using classic common approach, which is trial and error method, this study proposes a particle swarm optimization (PSO) algorithm to track the best solution of the weighting matrices. The proposed algorithm is tested on shunt hybrid active power filter (APF) to mitigate the harmonic contents in voltage and current signals in a nonlinear load system. The modeling work of this proposed system is simulated using MATLAB/Simulink software. From the simulation, the obtained results proved that using PSO in tuning the LQR controller produce smoother nonlinear voltage and current signals. In fact, the amount of current to be injected into network can be reduced up to 95%. Besides, less time is consumed during searching the optimum weighting matrices using the proposed approach.
Performance of a Small-sized Savonious Blade with Wind Concentrator Dygku. Asmanissa Awg. Osman; Norzanah Rosmin; Aede Hatib Mustaamal; Siti Maherah Hussin; Md Pauzi Abdullah
Indonesian Journal of Electrical Engineering and Computer Science Vol 10, No 3: June 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v10.i3.pp1227-1233

Abstract

This paper presents the performance of a fabricated small-sized Savonious wind turbine with two blades. The design of Savonius vertical axis wind turbine (VAWT) was based on Malaysia wind speed condition. Meanwhile, the design of wind concentrator was based on the dimensions and the constant airflow of an air compressor. From the experimental testing in a laboratory, it was found that the proposed Savonious turbine has best performance when tested using wind concentrator. To conclude, airflow from air compressor can be increased when the proposed wind concentrator is used and hence increasing the proposed VAWT performance in terms of its angular speed (ω), tip speed ratio (TSR) and the generated electrical power (PE).
Virtual inertia support for wind turbine system Nor Shahida Hasan; Norzanah Rosmin; Nor Julia Mohd Nordin; Aede Hatib Mustaamal; Siti Maherah Husin; Aripriharta Aripriharta; Ira Devi Sara
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.pp629-636

Abstract

Previously, a conventional synchronous generator is adapted into the wind energy conversion system to supply the required inertial support; however its slow behaviour may worsening the stability problem of the system during frequency event. In this paper, a new approach that enables virtual inertial support from supercapacitor during sudden load increase e.g. when wind turbine experiencing sudden wind or load changes is presented. Here, a new approach that can regulate the system frequency by controlling the charging and discharging process of supercapacitor is demonstrated. Hence, an algorithm on how to derive the behavior of supercapacitor and power converter is presented. From the simulation results, it has been found that this proposed approach successfully reduces the frequency nadir and ROCOF of the system frequency. It also able to avoid the second frequency dips during frequency recovery time.
Co-Authors Aripriharta - Baharuddin Ishak Dygku. Asmanissa Awg. Osman Ira Devi Sara Md Pauzi Abdullah Nor Julia Mohd Nordin Nor Shahida Hasan Nor Shahida Hasan Norzanah Rosmin Norzanah Rosmin Saifulnizam Abd Khalid Siti Maherah Husin Siti Maherah Hussin