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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science TELKOMNIKA (Telecommunication Computing Electronics and Control) ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Journal of Energy, Mechanical, Material and Manufacturing Engineering KACANEGARA Jurnal Pengabdian pada Masyarakat Indonesian Journal of Electrical Engineering and Computer Science Jurnal Difusi Industrial Research Workshop and National Seminar Jurnal INFOTEL
Hermagasantos Zein
Politeknik Negeri Bandung
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Perkiraan Pasokan Daya Sistem Jawa-Madura-Bali Sampai Tahun 2016 Berdasarkan Indeks Lolp Satu Hari Per Tahun Zein, Hermagasantos
Transmisi Vol 10, No 1 (2008): TRANSMISI
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (68.116 KB) | DOI: 10.12777/transmisi.10.1.6-9

Abstract

Not only operation problem in the electric system but also expansion problem of capacity supply to meet demand in the future that must be handled. This expansion must guarantee adequacy condition of supply in order to avoid lack of supply although there is/are one/more unit black out.  Adequacy (of power) of an electric system is determined by loss of load probability (LOLP) indexes. This indexes has been definite, i.e. national electric company, PT. PLN, use indexes LOLP 1 day/year. This paper will study adequacy supply in the future, until 2016,  in the Jawa-Madura-Bali (JAMALI) system based on LOLP indexes by PT. PLN. The result of study will be compared with the planning supply of PT. PLN that was reported in RUPTL (global planning of supply) report-book for 2006-2016. The result indicated that the planning supply of PT. PLN until 2016 is 42431 MW or has LOLP tree digit before coma. In this study, the calculation based on LOLP 1 day/year result the added supply as much as 38086 MW until 2016.Key words: Capacity supply, Adequacy and Loss of load probability indexes.
PENGURANGAN PENCEMARAN UDARA BERDASARKAN KONSEP PELABUHAN HIJAU SUPRIYANTI, YANTI; GANTINA, TINA MULYA; KURNIASETIAWATI, ANNISA; MARENSHAPUTRI, PUREZA; WACHJOE, CONNY KURNIAWAN; ZEIN, HERMAGASANTOS
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 8, No 2 (2020): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektro
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v8i2.252

Abstract

ABSTRAKPerdagangan bebas antara negara-negara di dunia telah mengubah pergerakan orang dan barang yang memberi dampak signifikan pada pemanfaatan transportasi laut. Fenomena ini akan berdampak pada peningkatan jumlah kapal yang berlabuh di pelabuhan. Ketika catu daya listrik tidak tersedia untuk kapal di pelabuhan, mesin diesel kapal dioperasikan untuk memenuhi kebutuhan beban listrik selama proses bongkar muat. Pengoperasian mesin diesel akan berdampak negatif pada area pelabuhan karena kebisingan dan polusi udara. Makalah ini akan menyediakan metode pasokan daya shore to ship (STS) yang memasok listrik dari darat ke kapal. STS dapat digunakan untuk meningkatkan kualitas udara di area pelabuhan. Hasilnya telah secara signifikan mengurangi jumlah polusi udara berbahaya, terutama untuk emisi NOx, VOC, dan PM masing-masing sebesar 97%, 94% dan 89%.Kata kunci: pelabuhan laut, pembangkit listrik tenaga diesel, shore to ship, berlabuh, emisi gas buang berbahaya ABSTRACTFree trade agreements between countries in the world have changed the movement of people and goods which creates a significant impact on sea transportation. This phenomenon will have an impact on the rapid increase in the number of vessels resting at the port. When the electrical power supply is not available for ships in the port, the ship diesel engine is operated to meet the electrical load during the loading and unloading process. Operation of the diesel engine will have a negative impact on the port area due to noise and air pollution. This paper will provide a shore-to-ship (STS) power supply method that supplies electricity from land to ships. STS can be used to improve air quality in the port area. The results have significantly reduced the amount of harmful air pollution, especially for NOx, VOC, and PM emissions by 97%, 94% and 89% respectively.Keywords: port, diesel plant, shore to ship, berthing, harmful air polution
Combining Parameters of Fuel and Greenhouse Gas Costs as Single Objective Function for Optimization of Power Flow Ignatius Riyadi Mardiyanto; Hermagasantos Zein; Adi Soeprijanto
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 4: December 2017
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v15i4.5769

Abstract

The Kyoto Protocol is a protocol that highlights on greenhouse gases that have been adopted by many countries. Based on this protocol, power plants that produce emissions are encouraged to pay compensation. Conventionally, optimization of fuel mix in the electric power system components has not involved emission charges on the electricity system. This paper proposes a single objective function of amathematical model for the calculation of power flow optimization involving greenhouse gas emissions costs to the fuel cost function. The single objective function derived using the mathematical model approach with linear heat rate function, in order to get the relationship between the fuel cost function with GHG emission. Namely, the function of energy costs as a combination of fuel costs and GHG emission costs can be shown as a quadratic function.
Optimal cost allocation algorithm of transmission losses to bilateral contracts Conny K. Wachjoe; Hermagasantos Zein; Fitria Yulistiani
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 18, No 4: August 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v18i4.14226

Abstract

One of the trends in electricity reform is the involvement of bilateral contracts that will participate in electricity business development. Bilateral agreements require fair transmission loss costs compared with the integrated power system. This paper proposes a new algorithm in determining the optimal allocation of transmission loss costs for bilateral contracts based on the direct method in economic load dispatch. The calculation for an optimal power flow applies fast decoupled methods. At the same time, the determination of a fair allocation of transmission losses uses the decomposition method. The simulation results of the optimal allocation of power flow provide comparable results with previous studies. This method produces a fair allocation of optimal transmission loss costs for both integrated and bilateral parties. The proportion allocation of the transmission lines loss incurred by the integrated system and bilateral contracts reflects a fair allocation of R. 852.589 and R. 805.193, respectively.
Cost Allocation of Transmission Losses in Electric Market Mechanism Hermagasantos Zein; Erwin Dermawan
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 10, No 2: June 2012
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v10i2.779

Abstract

 This paper proposes a new method to calculate cost allocation of transmission losses based on a certain price of energy. A mathematic model is developed by manipulating of the network equation to separate losses. This model uses complex power injection and, does not use approximations and assumptions in determining the cost allocation of losses. The calculation begins from the results of load flow calculation and it is continued to calculate power distribution from a generator to every load and line. Finally, the separating of losses and cost allocation of losses are calculated. The proposed method is easy to be understood and applied. An illustration results on IEEE 14-bus system show that the method is consistent with expectancies and slightly different from several referenced methods. 
Implementation of Electricity Competition Framework with Economic Dispatch Direct Method Hermagasantos Zein; Yusra Sabri; Ali Mashar
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 10, No 4: December 2012
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v10i4.854

Abstract

Technically, electricity business under competition structure is more complex than that of vertically integrated one. A competition framework has to be designed to implement bidding strategies with electrical calculations as quickly as possible (not more than 15 minets). This paper proposes a competition framework with the electric calculations, where a bilateral contract has been accommodated. Optimal energy price in the paper is calculated based on direct method of economic dispatch to obtain the result very quickly. The proposed method has been simulated to a 4-bus system. The simulation results show that the method works well and complies with the expectation. Therefore, electric power business under competition structure can be well realized by the proposed method.
Influence Types of Startup on Hydrothermal Scheduling Ignatius Riyadi Mardiyanto; Hermagasantos Zein; Adi Soeprijanto
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 1: February 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i1.6722

Abstract

The energy costs of a power plant consist of startup cost and cost of power usage. In contrast to the existing literature, this study introduces at startup cost based on the duration of thermal power plant downtime. The approach of startup cost function in this research is done by using startup type. Startup of a steam power plant depends on its condition. Generally, there are three types of startup the power plant when the turbine temperature is still very high, i.e. hot start, very hot start and very-very hot start. This paper uses multistage optimization to solve the problem of hydrothermal scheduling with including the startup type cost in the objective function. The simulation results showed operating cost savings when the objective function for optimization also consider the cost based on startup type i.e. when compared with the optimization result which the objective function does not take the cost of startup type.
Optimal Location of a Capacitor Bank in a Primary Feeder to Load up Linearly Hermagasantos Zein; Erwin Dermawan
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.370

Abstract

A capacitor bank is not only used to improve the power factor, but also can be used to reduce losses in the power system network, such as its placement on the primary feeder. The position of the capacitor bank will be affected by the compensation factor and the sharpness of increase loads linearly in a primary feeder. This paper is aimed to determine an optimal location of the capacitor bank in the primary feeder which their loads increasing linearly in order to get maximum loss saving. Mathematical model to determine the optimal location of the capacitor bank has been clearly derived in this paper. Simulation results show that the maximum loss reduction occurs in compensation between 50% and 100%, with get loss saving about 52%. In these conditions, optimal locations lay between 75% and 100%. These results were influenced by the sharpness of the increase loads and the compensation factor. For loads increasing sharply, the position of the capacitor banks will be further away from the substation; whereas for greater compensation factor, the position of the capacitor bank will be getting closer to the substation.
Integrated Cost Allocation of Transmission Usage under Electricity Markets Hermagasantos Zein; Ignatius Riyadi Mardiyanto; Ali Mashar
IPTEK The Journal for Technology and Science Vol 23, No 3 (2012)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v23i3.4

Abstract

Cost allocation of transmission usage on the power networks is an important issue especially in the modern electricity market mechanism. In this context, all costs that have been embedded in the transmission, embedded cost, should be covered by the transmission users. This paper follows general methods, where generators are fully responsible to cover the embedded cost. It proposes a method to determine the cost allocation of transmission usage based on decomposition through the superposition techinique to determine power flow contributions from an integrated base case of the results of the power flow calculations of all transactions, bilateral and nonbilateral contracts. Mathematically, the applied formulations are illustrated clearly in this paper. The proposed method has been tested with 5-bus system and the results are much different compared to a few of the published methods. This is shown by the test results on the 5 bus system. The published methods produce total power flow contributions in each line is greater than the actual. And they earn total revenues approximately 11.6% greater than the embedded cost. While on the proposed method, the power flow contributions are equal to the actual and the revenues are equal to the embedded cost. It shows also that the proposed method gives results as expected
PENINGKATAN KOMPETENSI OPERATOR PLTMH RIMBA LESTARI DI DUSUN TANGSI JAYA KECAMATAN GUNUNG HALU BANDUNG BARAT Achmad Mudawari; Djafar Sodiq; I Made Wiwit; Ahmad Deni; Ali Mashar; Aceng Daud; Hermagasantos Zein; Siti Saodah; Erwin Yusuf
Jurnal Difusi Vol 3 No 1 (2020): Jurnal Difusi
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M) Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1621.953 KB) | DOI: 10.35313/difusi.v3i1.1945

Abstract

PLTMH Rimba Lestari kapasitas 18 KW terletak di Dusun Tangsi Jaya, Desa Gunung Halu, Kecamatan Gunung Halu, Kabupaten Bandung Barat, Provinsi Jawa Barat perlu dijaga untuk dapat tetap beroperasi dengan sehat guna memasok keperluan daya listrik warga masyarakat sekitar. Untuk itu diperlukan para operator mandiri yang memiliki pengetahuan dan keterampilan secara memadai. Oleh karena itu, pelatihan bagi operatornya merupakan langkah yang tepat untuk dilakukan. Paper ini dimaksudkan untuk melakukan kajian terhadap program pelatihan bagi para operator PLTMH yang dimulai dari survey penjajagan, penyusunan silabus dan metode pelaksanaannya hingga pengukuran efektivitas pelatihan yang dilaksanakan. Materi pelatihan meliputi teori dan praktek dengan instruktur yang berpengalaman sesuai dengan substansi yang dilatihkan. Dengan materi dan metode yang diterapkan Pelatihan dapat berjalan denganlancar dan berhasil dengan baik. Dengan melihat latar belakang masalah peserta didik yang beragam dari tingkat pendidikan maupun pola pikir, perlu adanya pendekatan metoda dan materi yang tepat untuk melaksanakan kegiatan pelatihan ini. Keberhasilan ini ditunjukkan oleh partisipasi aktif dan semangat tinggi para peserta selama mengikuti pelatihan serta tingginya tingkat serapan terhadap materi/substansi pelatihan, yaitu meningkatnya pengetahuan dan keterampilan dalam mengoperasikan pembangkit dengan baik yang ditunjukkan dengan tingginya nilai hasil uji akhir (posttest). Selain itu, paper ini juga bisa digunakan sebagai rujukan bagi para pihak yang akan melakukan kegiatan serupa atau lainnya yang terkait dengan PLTMH. Kata kunci: Operator, materi, metode dan sistem pendekatan.
Co-Authors Aceng Daud Achmad Mudawari Adi Soeprijanto Ahmad Deni Ali Mashar Ali Mashar Ali Mashar Djafar Sodiq Eliana, Bella Erwin Dermawan Erwin Dermawan Erwin Yusuf Fauzan, Muhammad Rifky GANTINA, TINA MULYA I MADE WIWIT I Nyoman Sujana Ignatius Riyadi Mardiyanto Ignatius Riyadi Mardiyanto Ignatius Riyadi Mardiyanto Jangkung Raharjo Kharisma Bani Adam KURNIASETIAWATI, ANNISA MARENSHAPUTRI, PUREZA Michael Michael Mulyadi, Ahmad Deni siti saodah SITI SAODAH Teguh Sasono Wachjoe, Conny K. WACHJOE, CONNY KURNIAWAN YANTI SUPRIANTI, YANTI Yulistiani, Fitria Yusra Sabri Yusra Sabri Yusra Sabri Yusra Sabri