Saini, Makmur
Politeknik Negeri Ujung Pandang

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Analisis Aliran Daya dan Gangguan pada Jaringan Transmisi Sistem Interkoneksi Sulselbar 2015 Menggunakan Power World Simulator Saini, Makmur; Yunus, Muh. Yusuf; Yusmar, Yusmar; Muhakkir, Muhakkir
Jurnal Teknik Mesin SINERGI Tahun ke-13, No. 2 (2015)
Publisher : Politeknik Negeri Ujung Pandang

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Abstract

Sistem tenaga listrik selalu berkembang mengikuti kemajuan jaman. Semakin berkembangnya sistem berarti semakin tingginya konsumsi tenaga di wilayah tersebut. Tujuan penelitian ini untuk mengetahui besaran tegangan, daya aktif dan daya reaktif yang mengalir pada system interkoneksi Sulselrabar dengan menggunakan software PowerWorld Simulator. Metode penelitian ini menggunakan PowerWorld Simulator sebagai software untuk simulasi Aliran daya dan hubung singkat yang dapat di tampilkan secara visual. Hasil analisis aliran daya untuk sistem dalam keadaan normal adalah Aliran daya aktif (P) terbesar yakni pada Bus_Tallasa ke Bus_Sungguminasa sebesar 189,8 MW dan yang terkecil yakni dari Bus_ Daya ke Bus_Mandai sebesar 1,5 MW. Sedangkan aliran daya reaktif (Q) terbesar yakni pada Bus_PGaya ke Bus_Tallasa sebesar -173,40 MVar dan yang terkecil yakni dari Bus_ Polmas ke Bus_Pare–Pare sebesar -1 Mvar.Hasil simulasi aliran daya menggunakan PowerWorld Simulator tersebut mendekati dengan data aliran daya PT PLN. Untuk analisis gangguan hubung singkat, arus terbesar terjadi pada hubung singkat tiga fasa yakni jaringan Bus_Sidrap ke Bus_Pare–Pare dengan besar arus 7.529,79A.Sedangkan yang terkecil terjadi pada simulasi gangguan hubung singkat dua fasa ke tanah yakni pada jaringan Bus_Pamona 150 keBus_GI Poso dengan besar arus 46,59 A
Dynamic performance comparison of DFIG and FCWECS during grid faults Yunus, A. M. Shiddiq; Saini, Makmur; Abu-Siada, Ahmed
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 2: April 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (479.75 KB) | DOI: 10.12928/telkomnika.v17i2.11747

Abstract

Among several types, variable speed-based wind turbine generator (WTG) is the most popular type installed worldwide. This type of WTG is able to extract 5% more energy from wind speed compared to the fixed speed WTG. There are two kinds of variable speed based WTG; Doubly Fed Induction Generator (DFIG) and Full Converter Wind Energy Conversion System (FCWECS). DFIG and FCWECS are placed at the first and second topWTG installation worldwide since 2004. However, both of them are very sensitive to the grid dip fault and may violate the allowable margins identified by various international Fault Ride Through (FRT) codes. This paper aims to investigate the responses of DFIG and FCWECS during certain level of grid dips and compare their performanceunder such event. Results show some differences of the performance of DFIG and FCWECS during voltage sag event, however the voltage profile at the point of common coupling is much better in case of DFIG. Results also recommend that DFIG can be effective when connected to weak grids whilst FCWECS is preferably to be connected to strong grids.
Pengembangan Peralatan Simulasi Peralatan Aliran Daya Berbasis Fast Decoupled-Dependent Newton-Raphson dengan Program Interface-Based Delphi Saini, Makmur; Tandioga, Remigius; Pangkung, Andareas; Yunus, A.M Shiddiq
INTEK: Jurnal Penelitian Vol 4, No 1 (2017): April 2017
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (533.757 KB) | DOI: 10.31963/intek.v4i1.91

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 longterm objective is to extend the curriculum, syllabi, laboratory facilities, and to improve the abilities and qualities of graduates continuously either within State Polytechnic of Ujung Pandang or outside. Method used to achieve these objectives is making, design and implementation which will be last for two years. Simulator for generation system in the first stage of the research is balanced six-phase system yielded from the circuit of 3-one phase centre-tap transformers of 220/18 V, 15 A, as the supply of low-tension 3-phase system, which feeds six one-phase transformer of 18/220 V, 20 A, whose output as another balanced 3-phase system with 220 V/phase. From balanced 6-phase system, a balanced 3-phase will simulate generator number 1 and another balanced 3-phase will simulate that of number 2. Interface which is based on Delphi program is to switch all transmission lines. The result of experiment shows that voltages in the two generator busbars experience the significant drop voltage if they work separately, that are 20.5% - 36.4% and 20.5% - 63.6% for generator number 1 and number 2 respectively, for one to three load busbars operated sequentially, which also reveals that greatest voltage drop occurs in the generator busbar with most lines supplied. Simulating the two generators working simultaneously, then voltage drops are more significant, that are 65.9% - 72.7% and 65.9% - 79.5% for generator number 1 and number 2 respectively, for one to three load busbars operated sequentially, which also proves that transformer bank as generator simulator needs to increase its current capacity.
Rancang Bangun Alat Eliminasi Gas Buang Menggunakan Mekanisme Ejektor Saini, Makmur; Nur, Rusdi; Sattar, Sattar; Ibrahim, Ibrahim
INTEK: Jurnal Penelitian Vol 4, No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.473 KB) | DOI: 10.31963/intek.v4i2.154

Abstract

Environmental pollution (pollutants) can be caused by natural events or human care through uncontrolled industrial and technological activities, this can be a threat to living things including humans in the future. This phenomenon is caused by the entry of particles or chemical substances that do not exist in the natural component so that it exceeds the amount that should be. Pollution is the inclusion of substances, energy and aliens into the environment so that the quality of the environment decreases and no longer suitable allocation. Efforts to reduce or control environmental pollution that some environmental scientists and practitioners have done in a better way by the structures produced by various industries and technologies that are seen as backbones. The research installation can provide detailed information about the shape and structure of the current in the pipe (analogized as the exhaust) in the direction and the vertical velocity to air will be inhaled by the fluid of the liquid (air) as motive fluid in the opposite direction. The suction strength of the liquid against the airflow is greatly determined by the vacuum pressure in the chamber because of the effect of the working ejector that is geometrically formed so that the image can be adjusted to that achievement. The parameters used to measure performance in the design of this air-contaminating air-conditioning installation plant are composed of several variables in the ratio of changes between air velocity and liquid flow in opposite directions, vacuum compressions are formed large enough, the fluid flow capacity of the ejector, revascular and the ability to transform gas pollutants into liquid pollutants.
Pengembangan Sistem Penangkal Petir dan Pentanahan Elektroda Rod dan Plat Saini, Makmur; Yunus, A.M. Shiddiq; Pangkung, Andareas
INTEK: Jurnal Penelitian Vol 3, No 2 (2016): Oktober 2016
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.962 KB) | DOI: 10.31963/intek.v3i2.53

Abstract

The specific objective of this research is to producea system of internallightning and Eksternal lightning rod withgrounding which has been widely used in industries such aslightning protection and grounding system of substation,transmission lines and coupling wire used in high-rise buildingseither belong to government or private property. In this study,lightning rod is located outside the building structure that servesto catch or receive the bolt of lightning and the lightning deliverto the ground safely. In this study there were 5 different depths ofelectrode rod; 3 m, 5 m, 7 m, 9 m, and 12 m, moreover, 5 widevariety of electrode plate that are 1 x 1 m2, 0.75 x 0.75 m2, 0.5 x0.5 m2, 0.35 x 0.35 m2, 0.25 x 0.25 m2. For grounding electrode rod with a depth of 3 m, 5 m, 7 m, 9 m, 12 m in dry conditions grounding resistance values obtained ranged from 1.55 to 2.03 Ohm. For moist soil conditions, grounding resistance values obtained ranged from 2.21 to 2.60 Ohm. For wet soil conditions grounding resistance values obtained ranged from 1.97 to 2.34 Ohm. For grounding plate, R11 and R12 on the dry conditions grounding resistance values obtained ranged from 2.08 to 2.45 Ohm. For moist soil conditions grounding resistance values obtained ranged from 1.88 to 2.18 Ohm. For wet soil conditions grounding resistance values obtained ranged from 1.55 to 2.06 Ohm. On the external lightning rod with two added electrodes with a depth of 12 m and then connected in parallel with the electrode plate to get the smallest value of grounding resistance in accordance with the standards prescribed.