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All Journal Jurnal Sains dan Teknologi Jurnal Teknik Elektro Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika PROtek : Jurnal Ilmiah Teknik Elektro Jurnal Pengabdian UntukMu NegeRI JET (Journal of Electrical Technology) Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Sinergitas PkM & CSR KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Unri Conference Series: Community Engagement Journal of Applied Materials and Technology IGKOJEI: Jurnal Pengabdian Masyarakat Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) SAINSTEK Sewagati BATOBO: Jurnal Pengabdian Kepada Masyarakat
Rosma, Iswadi Hasyim
Jurusan Teknik Elektro, Fakultas Teknik, Universitas Riau
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Veterinary Other

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Optimasi Sistem Pengendalian Frekuensi Dengan Metode Kontrol Optimal Linier Quadratic Regulator Pada PLTU Muhammad Riski Hanifa; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

A good and efficient generating system is essential to meet the growing demand of electricity. Stability is required in the generation process to operate optimally. One of important stability parameters is frequency stability. This stability can be achieved by controlling the frequency of power plant (i.e. steam power plant). Turbine-generator is one of the important parts in generating system where it converts mechanical energy into electrical energy. On a turbine-generator, frequency becomes the main reference parameter that identifies the normal or abnormal condition of power plant. The main problem in the power plant is sudden load changes that result in abnormal system frequency (to drop or to rise). This abnormal frequency may cause damage on part of power plant, therefore it is necessary to adjust the flow rate of steam into the turbine to obtain the nominal speed of turbine by putting a proper gain controller. The gain was estimated by using LQR method. It has been found from the results that power plant with proper gain controller is better to bring the frequency back to normal compare to without controller.Keywords : Frequency, steam power plant, Optimal Control, Matlab/Simulink, LQR
Proteksi Panas lebih Pada Generator Berbasiskan Smart Relay Azmi Abdullah; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

One of abnormal conditions that may happen when operating synchronous generator is overheating at armature winding. Therefore, this condition is needed to overcome to avoid further damage in the generator by designing and implementing smart relay based overheating protection. Temperature at armature winding is as an input of the smart relay where it was measured by using LM35DZ sensor. Magnetic contactor was used as switch, where it will open when the temperature higher then setting value. The overheat protection design was implemented successfully where it can trip (disconnect generator from the system by opening magnetic contactor) when the armature winding temperature is higher than 60° C.Keyword: Synchronous generator, armature winding, Smart Relay, Temperature Sensor, Zelio Soft 2
Perancangan Dan Analisis Solar Pv Battery Charger Menggunakan Topologi Buck-Boost Converter Ferdy Ultra Sony; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Excessive use of fossil energy has a bad impact on humans and the environmentals. Generally, the use of fossil energy has now entered a critical phase because of the lack of availability of fossil energy resources. Indonesia is located in the equatorial region that gets sunlight all the year round. Solar energy is a primary energy that offers the opportunity to replace fossil energy. Solar energy is processed by using a solar panel modules system and can be stored in the batteries. The source voltage that connected to the battery must first be stabilized using a DC converter. In this article, the design and simulation of solar PV battery charger using buck-boost converter topology with MATLAB-simulink software is presented. Solar PV battery charger is designed with an output voltage of 16.8 V and a current of 6 A, which will charge the lithium-ion battery (li-ion) where it has a nominal voltage of 14.8 V with a capacity of 20.8 Ah.Keywords—solar PV battery charger, buck-boost converter, lithium-ion battery, MATLAB-Simulink
Analisis Sistem Proteksi Petir Pada Menara BTS 42 Meter PT. Telekomunikasi Selular Dicky Yulvarizal; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Lightning is a natural phenomenon that cannot be controlled or prevented by humans. Lightning strikes not only strike flat areas such as the field, but objects with high structures will be very vulnerable to lightning strikes. Objects that have high-rise structures include trees, housing, skyscrapers, electricity transmission towers, and Base Transceiver Station (BTS) transmitting towers. BTS is a tall building that has a role in the sustainability of data information provision. To prevent the magnitude of the influence of lightning on the information data that is distributed so as not interrupted Lightning Protection System (LPS) is needed. Determination of whether the building requires LPS or not, can be known through several standards, namely the PUIPP standard, NFPA 780 standard and IEC 1024-1-1 standard. In this study, the authors took the 42-meter BTS tower building PT. Telekomunikasi Selular (TELKOMSEL) - Pekanbaru as an object and uses the rolling sphere method as a protection method. Key word: lightning, lightning protection system, BTS, air terminal, down conductor, grounding
Perancangan Dan Analisis Sistem Single Axis Sun Tracker Untuk Meningkatkan Daya Output Solar Photovoltaic Ichsan Maulana Putra; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The use of Solar Photovoltaic (SPV) is widely installed at a specific tilted angle. This condition causes the solar PV panel will not get optimum solar radiation from the sun. Therefore, to overcome this situation, a solar panel based sun tracker was designed and installed. The sun tracker was using two LDR sensors to detect the position of the sun. An ardunio microcontroller was employed as controller system to inquiry the motor servo, in order to drive solar panel toward the sun location. Four different titled angles of solar panel such as 0 °, 15 °, 30 ° and 45 ° were compared with sun tracker based solar panel to obtain the energy gaining. It was found that the sun tracker based solar panel gave a significant energy boost. The energy gaining compare with 0 °, 15 °, 30 ° and 45 ° was 12%, 16%, 20% and 22%, respectively. From the real condition test, it can be concluded that there is a high potential of energy gaining when solar panel is equipped with sun tracker.Keywords: Arduino, Data Logger Shield, LDR, Servo Motor, Solar Photovoltaic
Analysis Of Configuration And Performance Of Arrester For Protecting Substation Against Impulse Lightning Using ATP-EMTP Software Alfian Adri; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Electrical energy is one of the most important and often used energy in life. Therefore to keep the availability of electricity, it takes a power company that will manage the electricity needs. One of the things that affect to the reliability of the equipment is need to know the configuration of the electrical equipment protective device. As known that transmission line is very vulnerable to lightning strikes that produce a traveling wave. It can enter the substation and make the existing equipment in danger. Based on the problems we need to analyze the configuration and performance of the arrester against the impulse lightning. This study was conducted by simulating lightning strikes on equipment using ATP-EMTP software by varying the strike and the distance of the arrester protection for protected transformer in order to get the correct distance to minimize the optimum voltage. The result of the simulation by varying the distance from 3 m, 6.7 m, 9 m, 15 m, 21 m, 27 m, 28.5 m, the safer distance and the smaller peak voltage which is protected by the arrester to the transformer is 21 meters from the current variation at 10 kA, 30 kA, and 60 kA where the lowest peak voltage of phases A, B, and C are compared with other distances. Then the distance 21 m better than the distance of 6.7 m used by PT.PLN (Persero) Garuda Sakti Substation.Keywords: Arrester, ATP-EMTP, Arrester configuration.
Pengembangan Alat Ukur Potensi Solar Photovoltaic (SPV) Menggunakan Arduino Amanda Khaira Perdana; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Utilization of solar energy system is one of the most promising renewable energy resources to meet the energy demand. This resource has been developed and utilized in many countries. Indonesia, as one of the tropical countries has been blessed with a huge amount of radiant energy from the sun during the whole year. However, the solar energy resource data is very limited. Therefore, the purpose of this article is to develop an automatic solar measurement to measure the potential of solar energy resource. The availability of solar energy resource data are the foundation of information for designing, utilizing and deploying of solar energy generation and technologies. The automatic solar measurement has been tested and found that it has capability to measure not only solar radiation data but also other related parameters such as air temperature and humidity with significant accuracy.Keywords—solar energy source, microcontroller Arduino, solar radiation, temperature, relative humidity
Studi Penghematan Energi Pada Gedung Tiga Lantai Di Kabupaten Padang Pariaman Hidayatul Catra Burhan; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
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Abstract

Life in the modern era like today is a life that is very dependent on the availability of energy. With the availability of energy, humans can create technology that alleviates human work. Unfortunately human dependence on energy is increasing and if overexplored it will have an impact on the energy crisis. The rise of energy saving campaigns by the government requires all people to carry out energy saving activities from small, medium, or large scale. The Polytechnic of Shipping of West Sumatra is a campus under the Ministry of Transportation of the Republic of Indonesia, located in Padang Pariaman Regency, West Sumatra. In this study the authors conducted a study and observation of electrical energy savings in the main building on the campus of the Polytechnic of Shipping of West Sumatra, where the energy savings obtained from this study amounted to 2,393.1 kWh / month Key word: energy, energy savings, the lighting
Penerapan Metode Tegangan Harmonisa Ketiga Untuk Proteksi Gangguan Tanah Pada Stator Ranto Ramandana; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Short circuit from phase to ground (ground fault) occurring in one of the stator windings of the synchronous generator can cause serious damage to the winding. Therefore, graund fault protection system is required to protect the stator winding of the generator. The method used is to analyze the magnitude of the ratio of the third harmonic voltage of the generator terminal and the generator neutral (V3n/(V3n+V3t)). This method is proven to be able to protect ground fault near neutral point or when low fault current occurred where conventional method is not able to react. To understand that the method is able to protect the fault near the neutral point then the simulation of faults were varied by the variation of fault resistance. It has been found from the result of the simulation that the method has capability to protect 60% stator winding from neutral. The 40% of unprotected winding will be protected by using conventional method in order to have a100% protection performance.Keywords: matlab, stator ground fault, the third harmonic protection
Analisis Usia Arrester Akibat Gangguan Sambaran Langsung Petir Pada Transmisi 150 KV Fathir Juliando; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Lightning strike is one of the main causes of faults at 150 kV transmission line in Indonesia. This fault may cause damage on the electrical system equipment. Therefore, the protection device to protect the equipment is essential to ensure reliable operation of electrical system. Arrester is a protection device that can be used to protect equipment from lighting strike. The life time of the arrester is effected, when the number of strike is increased. Therefore, the objective of this study is to analyze the lightning strike to the life time of the arrester. A number of parameters were used in this study such as: Thunderstormday (IKL),lightning current, the length of transmission line, The Total Probability of the Arrester Failure. It has been found from the results that when there was a lighting strike with 1 kA until 45 kAand the tail duration 0 until 45s , The Total Probability of the Arrester Failure is 0,00141255. Therefore, with IKL 150 per year, the life time of the arrester is 2 years and 2 months when it is hitted by 1 kA until 45 kA lighting.Keywords: Arrester, life time of arrester, lightning strike.
Co-Authors A. Ludfi Nur Kasan A. U. Lawan Abdul Gafar Arsaf Abdul Gafar Arsaf Abubakar Abdulkarim Abubakar Abdulkarim Adamu Halilu Jabire Agus Ika Putra Agus Ika Putra Agus Wahyudi Ahmad Jamaan Alfian Adri Ali, Nurhalim Dani Ali, Nurhalim Dani Ali Amanda Khaira Perdana Amir Hamzah Amir Hamzah Anisa Yulvi Azni Antonius Rajagukguk, Antonius Ari Sandhyavitri Ari Sandhyavitri Arisman Adnan Azmi Abdullah Azriyenni Azhari Zakri Dansarki Nanly Wesley Demiza, Khosfikra Dian Yayan Sukma, Dian Yayan Dicky Rinaldi Dicky Yulvarizal Dohardo P H Simanullang Edy Ervianto Ery Safrianti Fahmi, Ziddan Fajar Restuhadi Fakhriyah, Salsabila Fathir Juliando Feblil Huda Feblil Huda Febrizal Ujang Feranita Feranita Abdul jalil Feranita Feranita Ferdian, Fhinta Syahila Ferdy Ultra Sony Firdaus Firdaus Firdaus Fri Murdiya, Fri Ginting, Yogie Rinaldy Harahap, Elco Maghfira Arfi Herki Desrizal Hidayatul Catra Burhan Hidayatul Catra Burhan Hutabarat, Bijujent I.S. Madugu Ibrahim, Sajid Ichsan Maulana Putra Jamarrintan Jamarrintan Linna Oktaviana Sari Mahindra, Syaputra Dwi Marpaung, Horas Muhammad Riski Hanifa Muhammad, Satyo N. Nazaruddin Nasir Faruk Noveri Lysbetti M Nurhalim Dani Ali Nurhalim Nurhalim, Nurhalim P.U. Okorie Ramadhan, Roza Syahputra Randy Putra Ranto Ramandana Romy Romy Rosiki, Muhammad Habib Rusdi Masri S, Rocky Samuel Sakti Hutabarat Sani Saminu SARE, SATRIA Satibi, Syawal Siregar, M. Ikhsan Sobhy Abdelkader Soewignjo Agus Nugroho Solihin, Ikhram Minata Suwitno Suwitno Suwitno, Suwitno Tsabitul Khair Valendino, Muhammad Wallsman Lamtota Nainggolan Winanda, Muhammad Valdi Wiwik Handayani Yoga Pratama