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Optimal Design of PSS on SMIB Using Particle Swarm Optimization Muhammad Ruswandi Djalal; Makmur Saini; A.M Shiddiq Yunus
INTEK: Jurnal Penelitian Vol 8, No 1 (2021): April 2021
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v8i1.2893

Dynamic disturbances in the power system are caused by sudden changes in load. This condition causes the stability of the generator to be disturbed, such as the emergence of oscillations in the generator in the form of oscillations of frequency and rotor angle. Power System Stabilizer (PSS) is an additional control that can increase generator stability. To get optimal PSS performance, proper tuning of PSS parameters is needed. Optimal performance of PSS can cause the frequency response and angle of the SMIB rotor to be stable. In this study, PSO is used for optimization of PSS parameters. PSS is able to provide stability so that overshoot oscillations can be suppressed, as well as faster settling time performance for the system to reach steady state conditions. To test the reliability of the SMIB, a case study of adding and subtracting loads was used.

Exergy Analysis of 1 x 135 MW Jeneponto Steam Power Plant Nur Hamzah; A.M Shiddiq Yunus; Waqva Enno Al Fadiyah
INTEK: Jurnal Penelitian Vol 7, No 2 (2020): October 2020
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v7i2.2697

Exergy analysis is application of the second law thermodynamics which provides information about large exergy, exergy efficiency, destruction, and destruction efficiency in each component of PLTU so can be reference for improvement and optimization in an effort to reduce losses and increase efficiency. The exergy value obtained from calculating mass flowrate, enthalpy, ambient temperature, and entropy. The destruction value is obtained from difference between input exergy value and exergy output. The destruction exergy value from comparison between output exergy value to input exergy value, and destruction efficiency value from comparison of destruction value to total destruction value of PLTU components. The results showed that the largest exergy occurred in boilers, namely 778.225 MW in 2018, 788.824 MW in 2019, and 796.824 MW in 2020, lowest exergy value in CP was 0.160 MW in 2018, 0.176 MW in 2019, and 0.160 MW in 2020. The largest destruction occurred in boilers, namely 163.970 MW with destruction efficiency 79.242% in 2018, 179.450 MW with destruction efficiency 82.111% in 2019, and 199.637 MW with destruction efficiency 83.448% in 2020, lowest exergy destruction value at CP, namely 0.056 MW with destruction efficiency 0.027% in 2018, 0.059 MW with destruction efficiency 0.027% in 2019, and 0.056 MW with destruction efficiency 0.023% in 2020. The exergy efficiency occurred in HPH 2, amounting to 94.750% in 2018, 95.187 % in 2019, and 94.728% in 2020, while lowest of exergy efficiency was in LPH 1, namely 43.637 MW in 2018, 33.512 MW in 2019, and 38.764 MW in 2020.

Design and Construction of Wind Turbine-Solar Panel System Prototype for Water Supply Control A.M Shiddiq Yunus; Musrady Mulyadi; Apollo Apollo; Rifqy Rinaldi Wahid; Rima Zalsabillah
INTEK: Jurnal Penelitian Vol 8, No 2 (2021): October 2021
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v8i2.3015

Water supply is a crucial for human lives, not only for daily activities but also for secondary purposes such as for watering garden, paddy fields etc. There are many efforts of human in fulfilling their water supply needs. Most of water supply is provided by using electric motor pumps which in certain cases might increase the financial cost. In this paper, wind energy is applied to pumping water mechanically whilst it combines with solar panel which works to pump water during less wind speed condition. The micro-controller Arduino-Uno is employed to manage the collaboration operation between wind and solar panel. The design concept and construction are presented and discussed. The operation results exhibit good operation performance and could be developed for the real application.

STUDI ESTIMASI BEBAN HARIAN SISTEM INTERKONEKSI SULSELBAR 2015 DENGAN METODE JARINGAN SYARAF TIRUAN A.M Shiddiq Yunus; Lewi Lewi; Firdaus Firdaus; Zulfiadi Zulfiadi
Jurnal Teknik Mesin Sinergi Vol 14, No 1 (2016): April 2016
Publisher : Politeknik Negeri Ujung Pandang

Perkembangan masyarakat dari waktu ke waktu semakin bertambah dan kebutuhan akan konsumsi tenaga listrik akan ikut meningkat. Peningkatan kebutuhan tenaga listrik mengharuskan penyedia pasokan listrik dalam hal ini PT. PLN (Persero) dapat menyalurkan tenaga listrik dengan efektif ke konsumen. Untuk memaksimalkan penyaluran tenaga listrik ke konsumen, maka dibutuhkan suatu perencanaan beban. Perencanaan beban ini dilakukan untuk mengetahui seberapa besar kebutuhan daya listrik ke konsumen. Tujuan dari penelitian ini adalah untuk mengetahui kebutuhan beban sistem interkoneksi Sulselbar dan mengetahui akurasi perencanaan beban dengan menggunakan Jaringan Syaraf Tiruan (JST) backpropagation. Perencanaan beban dalam penelitian ini dilakukan dengan metode Jaringan Syaraf Tiruan (JST) Backpropagation menggunakan toolbox Neural Network pada Matlab R2010a. Dalam perencanaan beban ini menggunakan data beban harian sistem interkoneksi SULSELBAR tahun 2013 dan tahun 2014. Hasil penelitian menunjukkan bahwa kemampuan akurasi dari metode jaringan syaraf tiruan backpropagation lebih akurat daripada metode koefisien (dimana metode ini secara tradisional digunakan di PLN SULSELBAR).Hal ini ditunjukkan dari hasil penelitian pada tanggal 15-21 Juni 2015 error rata-rata terkecil dari metode Jaringan syaraf tiruan backpropagation yaitu pada tanggal 17 Juni 2015 yaitu 2,836911 %, dan error rata-rata terbesar yaitu pada tanggal 21 Juni 2015 yaitu 6,8170112 %. Sedangkan error rata-rata terkecil metode koefisien yaitu pada tanggal 17 Juni 2015yaitu 3,484677 %, dan error rata-rata terbesar yaitu pada tangga 15 Juni 2015 yaitu 8,9368 %.

Evaluasi Unjuk Kerja Isolator 6 kV pada Gardu Distribusi Biringkassi PT. Semen Tonasa II Pangkep A.M Shiddiq Yunus; Herman Nauwir
Jurnal Teknik Mesin Sinergi Vol 6, No 1 (2008): April 2008
Publisher : Politeknik Negeri Ujung Pandang

This research is aimed to determine the chemical compounds and to measure the electrical characteristics of pollutant of polymer 6 KV isolator in distribution station of PT. Semen Tonasa Biringkassi. Research methodology that applied in this study is laboratory experimental which follow several procedural stages: determination of distribution station for taking sample of pollutant then examination of chemical compounds and electrical characteristics of pollutant. The chemical compounds that will be examined are composition of compounds and conductivity of pollutant. Besides, the electrical examination is to measure the surface conductivity of isolator. The result of this study shows that the composition of compounds consists of Zn, Na, Fe and Calcium (Ca). For measurement of pollutant conductivity it is concluded that the higher pollutant’s concentration, the higher value of conductivity. Another result shows that polymer isolator is much more conductive while polluted by pollutant than by kaolin.

AUDIT ENERGI PADA PRIVATE CARE CENTER RSUP DR.WAHIDIN SUDIROHUSODO MAKASSAR A.M Shiddiq Yunus; Nofriana Tandi Abeng; Baso Ukkas
Jurnal Teknik Mesin Sinergi Vol 15, No 1 (2017): April 2017
Publisher : Politeknik Negeri Ujung Pandang

Audit energi merupakan langkah awal atau pendekatan standar yang harus dilakukan untuk menolong suatu perusahaan/instalasi dalam mengevaluasi penggunaan energi dan mengidentifikasi peluang penghematan energi terutama untuk bangunan besar (komersial/non komersial), yang banyak mengkonsumsi energi baik itu energi listrik, energi bahan bakar, dan lain sebagainya. Karena pemakaian energi dalam bangunan komersial/non komersial yang tidak dikendalikan secara baik, dapat menjurus kepada pemborosan dalam pemakaian energi. Pada sistem processing pemakaian energi listrik keseluruhan di setiap bulannya 835,152 kVA dengan biaya sebesar Rp 2.505.456/bulan, setelah melakukan audit energi dengan cara pemasangan kapasitor didapatkan audit energi listrik sekitar 1065,24 kVA dengan biaya sebesar Rp 3.105.737/bulan dengan demikian terlihat adanya penghematan sebesar Rp 690.264/bulan. Setelah melakukan audit energi dengan menentukan peluang-peluang penghematannya dapat dihemat sekitar Rp 42.995.950/bulan.

Evaluasi Nilai Regulasi Tegangan Distribusi dan Kelayakan Ekonomi pada PLTMH Desa Kaladi Darussalam, Kabupaten Luwu A.M Shiddiq Yunus; Sultan Sultan
Jurnal Teknik Mesin Sinergi Vol 13, No 1 (2015): April 2015
Publisher : Politeknik Negeri Ujung Pandang

Penelitian ini adalah penelitian deskriptif, bertujuan untuk mengetahui ke efektifan dari PLTMH di Desa Kaladi Darussalam, Kabupaten Luwu. Hasil penelitian menunjukan bahwa PLTMH Desa Kaladi Darussalam, Kabupaten Luwu didapatkan dalam proses pendistribusian energi listriknya terjadi penurunan tegangan yang cukup besar. Hal ini dapat dilihat dari perhitungan besarnya regulasi tegangan yang terjadi dan yang paling rendah pada rumah pertama yaitu 4,76 %, sedangkan pada rumah terakhir regulasi tegangan paling besar terjadi pada jalur konsumen 1 yaitu sebesar 57,14 %. Hal ini disebabkan jarak rumah terakhir pada jalur konsumen 1 dari rumah pembangkit terlalu jauh yaitu ± 5 km sehingga sangat mungkin terjadi penurunan tegangan yang signifikan. Dari hasil perhitungan dapat disimpulkan bahwa hanya pada rumah pertama di masing-masing jalur yang memenuhi standar jatuh tegangan PLN sebesar 5% yakni pada jalur 1 dan rumah pertama. Dari segi perhitungan kelayakan diperoleh NPV lebih besar dari 0 yaitu Rp. 137.521.723,5,- dan IRR lebih kecil dari bunga bank yang digunakan saat pembangunan yaitu 6,058 % serta payback periode diperoleh 6,2 tahun lebih kecil dari perkiraan umur bagunan yaitu 20 tahun sehingga dapat dikatakan invetasi PLTMH Desa Kaladi Darussalam, Kabupaten Luwu adalah layak jika dimaksudkan untuk memperoleh keuntungan finansial ditinjau dari perhitungan NPV dan Payback periodenya.

Correction For Pid Controller Value For Bus Suspension Model With Matlab A.M Shiddiq Yunus
Jurnal Teknik Mesin Sinergi Vol 6, No 2 (2008): Oktober 2008
Publisher : Politeknik Negeri Ujung Pandang

One important thing of design the real system is to make a simulation to find out the optimal and the best performance of the system. Bus suspension has been modeling for some control and simulation systems and this paper is aimed to find the better performance of bus suspension system with PID Controller. The main idea of this paper is to discuss about the correction for better result in controlling the bus suspension system using PID Controller through Simulink in Matlab program. The result shows that in this design, the PID controller zeroes are located at -4 and -27 on the real axis. The desired pole locations have been determined and are located at -362, -31, -1 -2-j12.3 and -2+j12.3. For the value of PID, it desired to put the gains for Ki, Kp, and Kd respectively: 11153000, 3065000, and 100261. From the plotted graphic, it can be seen that there is an approximate overshoot of 12% and a settling time of around 1 second.

Dampak Difusi Arus dalam Konduktor untuk Nilai Beban Resistif Lebih Besar dari Impedansi Saluran A.M Shiddiq Yunus; Apollo Apollo
Jurnal Teknik Mesin Sinergi Vol 11, No 1 (2013): April 2013
Publisher : Politeknik Negeri Ujung Pandang

Research on current diffusion into the conductor is one of important segments in electrical engineering field of study. The main purpose of the study is to recognize the behaviors and characteristics of current diffusion in conductor for further development in the future. The results of the research would be very useful, particularly in the transmission line study. In this paper, study will be focused at the characteristic of current diffusion in conductor due to its variation impedance value of load particularly when resistive load is larger than the conductor impedance (Zo).

PVSYST-Based Solar Power Plant Planning Muhammad Alif Anrizal Akbar; A.M Shiddiq Yunus; Jumadi Tangko
INTEK: Jurnal Penelitian Vol 9, No 1 (2022): April 2022
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v9i1.3789

This research uses the PVSyst software which can plan an off-grid SPP system and find out how much electricity is generated in the Auditorium Building Campus 2, Ujung Pandang State Polytechnic. PVSyst is a software package that is used for the learning process, sizing, and data analysis of the PV mini-grid system. PVSyst is divided into grid connected systems, standalone systems, pumping systems. PVSyst is also equipped with a database from a wide and diverse range of meteorological data sources, as well as data on PV mini-grid components. In planning a PVSyst-based solar power plant, it can be used to find out how much electrical energy is generated to meet the electricity needs of the Campus 2 Auditorium Building, Ujung Pandang State Polytechnic. In this study using the PVSyst software according to the proposed load requires an average energy of 482 kWh/day, therefore, the panel module used is the polycrystalline type model CS3W-410P-HE manufacturer Canadian Solar Inc, where each panel unit used has a nominal power of 410 WP requires 422 modules, 2 modules in series and 211 modules in parallel. The battery used is a lead acid type with a 12-CS-11PS model manufactured from Rolls. The batteries used are 195 batteries, of which 3 batteries are installed in series and 64 batteries are installed in parallel. The controllers needed in this design are 50 units with the FLEXmax 80-36V model manufactured from Outback. The technology of this controller is an MPPT converter. In planning Solar Power Plant using PVSyst in the Auditorium Building Campus 2 of Ujung Pandang State Polytechnic, it produces electricity of 227,122 kWh per year.

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