Garuda - Garba Rujukan Digital

The comparison of dual axis photovoltaic tracking system using artificial intelligence techniques Machrus Ali; Aji Akbar Firdaus; Hamzah Arof; Hidayatul Nurohmah; Hadi Suyono; Dimas Fajar Uman Putra; Muhammad Aziz Muslim
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 10, No 4: December 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijai.v10.i4.pp901-909

In this paper, the efficiency of photovoltaic panels is improved by adding a sun tracking system. The solar tracking system is used for tracking the sun so that photovoltaic always faces the sun. This system uses a dual axis consisting of horizontal rotation axis and a vertical rotation axis. The horizontal rotational axis motion is to follow the azimuth angle of the sun from north to south. Then, to follow the sun's azimuth angle from east to west is the vertical axis motion. Both types of movements are controlled using a PID controller that is optimized with an artificial intelligence approach, namely particle swarm optimization (PID-PSO), firefly algorithm (PID-FA), imperialist competitive algorithm (PID-ICA), bat algorithm (PID-BA), and ant colony optimization (PID-ACO). Experiments of various approaches were carried out and the corresponding performance compared. The experimental results show that PID-BA performs best in terms of settling time and overshoot. The results also allow the comparison of different PID controller and the calculation of the fastest completion time.

Alternative Grounding Method Using Coconut Shell Charcoal as Media of Mesh Electrodes Moch Dhofir; Rini Nur Hasanah; Hadi Suyono; Avrizal Riva Belan
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 2: April 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i2.8700

The utilization of coconut charcoal as alternative media of grounding was investigated. The mesh-electrode was made of stainless steel of 8-mm diameter, whereas its lattice dimension was 50cmx50cm. Four variations of lattice number were considered, i.e. 1-, 2-, and 4-lattice structures. Dry and wet charcoal media were considered. Mesh location was fixed in the depth of 80cm under the ground, while the 10cm of medium thickness variation was chosen. The resistance obtained using 10-cm thickness of charcoal layer in a mesh consisting of 1-, 2-, and 4-lattices were 268, 131, and 78 ohms consecutively. The addition of layer up to 80-cm resulted in a resistance decrease of 48%, 33%, and 44%. Using wet charcoal, the 10-cm layer produced 26.5, 17.5, and 14.8 ohms of grounding resistance and a reduction of 25%, 10%, and 3.6% subsequently for 1-, 2-, and 4-lattice mesh structure if the layer thickness was 80 cm.

FACTS device installation in transmission system using whale optimization algorithm Irham Syafiq Shahbudin; Ismail Musirin; Saiful Izwan Suliman; Afdallyna Fathiyah Harun; Sharifah Azma Syed Mustaffa; Hadi Suyono; Nor Azura Md Ghani
Bulletin of Electrical Engineering and Informatics Vol 8, No 1: March 2019
Publisher : Institute of Advanced Engineering and Science

As the world is progressing forward, the load demand in the power system has been continuously increasing day by day. This situation has forced the power system to operate under stress condition due to its limitation. Therefore, due to the stressed condition, the transmission losses faced higher increment with a lower minimum voltage. Theoretically, the installation of the Flexible AC Transmission System (FACTS) device can solve the problem experienced by the power system. This paper presents the whale optimization algorithm for loss minimization using FACTS devices in the transmission system. Thyristor controlled series compensator (TCSC) is chosen for this study. In this study, WOA is developed to identify the optimal sizing of FACTS device for loss minimization in the power system. IEEE 30- bus RTS was used as the test system to validate the effectiveness of the proposed algorithm.

FACTS device installation in transmission system using whale optimization algorithm Irham Syafiq Shahbudin; Ismail Musirin; Saiful Izwan Suliman; Afdallyna Fathiyah Harun; Sharifah Azma Syed Mustaffa; Hadi Suyono; Nor Azura Md Ghani
Bulletin of Electrical Engineering and Informatics Vol 8, No 1: March 2019
Publisher : Institute of Advanced Engineering and Science

As the world is progressing forward, the load demand in the power system has been continuously increasing day by day. This situation has forced the power system to operate under stress condition due to its limitation. Therefore, due to the stressed condition, the transmission losses faced higher increment with a lower minimum voltage. Theoretically, the installation of the Flexible AC Transmission System (FACTS) device can solve the problem experienced by the power system. This paper presents the whale optimization algorithm for loss minimization using FACTS devices in the transmission system. Thyristor controlled series compensator (TCSC) is chosen for this study. In this study, WOA is developed to identify the optimal sizing of FACTS device for loss minimization in the power system. IEEE 30- bus RTS was used as the test system to validate the effectiveness of the proposed algorithm.

Pengaruh Tipe Belitan Terhadap Unjuk Kerja Motor Induksi Satu Fasa Asfari Hariz Santoso; Rini Nur Hasanah; Hadi Suyono
Jurnal EECCIS Vol 12, No 2 (2018)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1035.576 KB)

Motor induksi satu fasa banyak digunakan karena konstruksinya yang kokoh, relatif sederhana, mudah dalam perawatan, dan harga yang murah. Konfigurasi atau tipe belitan stator berpengaruh terhadap nilai impedansi motor. Pada penelitian ini dibuat dua tipe belitan atau konfigurasi yang berbeda. Tipe belitan yang diteliti adalah terbagi-skrup (Mesin A) dan terpusat terdistribusi (Mesin B). Tujuan dari penelitian adalah untuk mendapatkan tipe belitan yang menghasilkan unjuk kerja motor yang baik. Langkah yang dilakukan adalah mendapatkan beda sudut fasa arus antara kumparan utama dan bantu yang ideal dengan kumparan yang simetri. Beda sudut fasa arus yang ideal adalah sebsesar 90°. Kumparan yang simetri yaitu jumlah kumparan utama dan bantu sama banyaknya. Hal tersebut dapat menghasilkan torsi yang optimum dan arus yang setimbang. Motor yang dirancang dianalisis menggunakan metode elemen berhingga dengan bantuan perangkat lunak FEMM 4.2. Simulasi dilakukan pada keadaan nominal. Kerapatan fluks rata-rata celah udara (Bav) yang didapat dari simulasi digunakan untuk menghitung kapasitas motor. Pada penelitian ini juga dilakukan analisis daya dan torsi dengan perhitungan parameter dan pengujian berbeban. Hasil simulasi dan pengujian menunjukkan Mesin B memiliki torsi yang lebih tinggi dibanding Mesin A. Faktor yang berpengaruh adalah jumlah komponen harmonisa pada gaya gerak magnet (Magnetomotive force-MMF) dan distribusi medan yang dihasilkan kumparan stator.

Desain Pembangkit Listrik Tenaga Piko Hidro Terapung (PLTPHT) Suparman Suparman; Hadi Suyono; Rini Nur Hasanah
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 11 No. 2 (2017)
Publisher : Fakultas Teknik, Universitas Brawijaya

Potential renewable energy source in Indonesia today for hydropower around 75.67 GW and newly used about 4.2 GW. Utilization of energy in the present has been directed to the use of renewable energy in nature. Based on that idea, innovation and testing are done by designing Floating hydro power plant (FHPP) FHPP is designed by utilizing irrigation water sources to meet small-scale power consumption, especially for household consumers with 450-500 watts of power. FHPP design process is done by first analyzing the related data such as planned power and other related variables. After the size and dimensions of FHPP is known the next stage is to make the model FHPP using Ansys 18.00 software, the goal to find the optimal design of FHPP which can generate electrical power between 300-450 watts. While the components of FHPP itself consists of pontoon, waterwheel, permanent magnet generator (GMP) as an electricity generator, voltage rectifier, voltage stabilizer and battery that serves to store voltage generated by GMP. After FHPP design is completed the next stage is the mechanical testing of FHPP by using an electric motor as a substitute for water flow and experimental testing conducted by utilizing irrigation water flow. From this test obtained voltage generated by gmp is direct current (DC) with a maximum power of 480 Watt, 600 gpm rpm rotation with maximum torque of gmp of 0.42 kgm. The resulting voltage is converted to alternating current (AC) by using a converter so that it can be used to meet household electrical needs.Â Â

Grid Voltage Dip Impacts on the DFIG Wind Turbine and Its Main AC Contactor Performances Ahsein Jomaa Alshibani; Rini Nur Hasanah; Hadi Suyono
Jurnal EECCIS Vol 12, No 2 (2018)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.093 KB)

Doubly-fed induction generators connected to the power grid are widely used in wind farms as a part of the power system. The wind turbines are in general susceptible to grid disturbance in a form of transient faults which often result in voltage dips. The DFIGs are connected to the grid via conductors whose operating mechanism depends on the grid voltage through an auxiliary transformer. This paper discusses the effects of grid voltage dips on the doubly-fed induction generator and its main contactor. The study focuses on the modeling and simulation of a doubly-fed induction generator and a wind turbine connected to the grid through ac contactors. The model is subjected to various symmetrical voltage dips and their effects on the grid contact mechanism of the DFIG generator during these transient faults are explored to find out the minimum voltage dip which still keeps the contactor engaged. The impacts of the grid transients on the performance behaviour of the doubly-fed induction generator are also observed.

FACTS device installation in transmission system using whale optimization algorithm Irham Syafiq Shahbudin; Ismail Musirin; Saiful Izwan Suliman; Afdallyna Fathiyah Harun; Sharifah Azma Syed Mustaffa; Hadi Suyono; Nor Azura Md Ghani
Bulletin of Electrical Engineering and Informatics Vol 8, No 1: March 2019
Publisher : Institute of Advanced Engineering and Science

As the world is progressing forward, the load demand in the power system has been continuously increasing day by day. This situation has forced the power system to operate under stress condition due to its limitation. Therefore, due to the stressed condition, the transmission losses faced higher increment with a lower minimum voltage. Theoretically, the installation of the Flexible AC Transmission System (FACTS) device can solve the problem experienced by the power system. This paper presents the whale optimization algorithm for loss minimization using FACTS devices in the transmission system. Thyristor controlled series compensator (TCSC) is chosen for this study. In this study, WOA is developed to identify the optimal sizing of FACTS device for loss minimization in the power system. IEEE 30- bus RTS was used as the test system to validate the effectiveness of the proposed algorithm.

Multi cases optimal reactive power dispatch using evolutionary programming Rahmatul Hidayah Salimin; Ismail Musirin; Zulkiffli Abdul Hamid; Afdallyna Fathiyah Harun; Saiful Izwan Suliman; Hadi Suyono; Rini Hasanah
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.pp662-670

Evolutionary Programming (EP) is one of many types in Evolutionary Computation (EC) that used for optimization process. EP technique is used to find the optimal reactive power dispatch (ORPD) since it is one of the accessible options schemes that can be used on the system as a reactive power support. Sometimes, it is not necessary to operate all generators in order to perform ORPD to in achieve the objectives. Also, increment of reactive power load to the system will cause voltage decomposes with the increase in transmission loss in the system. Therefore, the proposed method decides the best grouping of generators that should be operated in system by bearing in mind the transmission loss reduction. ORPD will be used to minimize the transmission loss as well the increasing reactive power loading. This method conducted on IEEE 30-bus Test System with multi cases scenario. The best combination of operating generators determined and the transmission loss after optimization is smaller compared to the transmission loss before optimization resulted.

Impact of Combine Dithering and Modulators to Mitigate Noise in Radio Over Fiber System Fakhriy Hario; Eka Maulana; Hadi Suyono; Rini N Hasanah; Sholeh H Pramono
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 1: October 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i1.pp428-432

A well-prepared Radio over Fiber (RoF) is a technology that combines two transmission technologies, radio and optical fiber transmissions. The study focused on the characteristics and problems of the optical fiber medium. One of the problems in the optical fiber is the effect of nonlinear characteristic, which caused by the high light intensity in the optical fiber core with extended interaction area in a single mode fiber (SMF). This characteristic reduces the output width and creates a pulse broadening. The nonlinear characteristics discussed in this study focused on SPM (self-phase modulation) and GVD (Group Velocity Dispersion). To overcome the nonlinear problems, this study presented a method to make the noise-resistant transmitted signal and improve the optical fiber power range. The fundamental of this study was developing similarities of previous studies regarding nonlinearity in the optical fiber. The results show that the use of two modulators combined with the amplification generated the signal with smoother spectrum, which means that the spectrum distribution was more uniform. There was 61.5 % increase of the peak power of the output signal after amplification using an optical amplifier.

Title

Found 10 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 10 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 10 Documents
Search