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All Journal International Journal of Electrical and Computer Engineering JAREE (Journal on Advanced Research in Electrical Engineering) Sewagati
Aryani, Ni Ketut
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Implementasi Photovoltaic On-Grid guna Meminimalisir Pemadaman Listrik Bergilir serta Jaringan Telekomunikasi di Pulau Bawean Wibowo, Rony Seto; Penangsang, Ontoseno; Aryani, Ni Ketut; Mukti, Prasetiyono Hari; Pamuji, Feby Agung; Mardiyanto, Ronny
Sewagati Vol 8 No 1 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i1.795

Abstract

Bawean yang berada di 135 km dari utara Kabupaten Gresik adalah kepulauan dengan luas wilayah 197,42 km2. Dengan jumlah penduduk yang semakin meningkat sepanjang tahun, beban listrik yang harus ditanggung juga semakin meningkat. Kecamatan Sangkapura di Pulau Bawean memiliki jumlah pengguna listrik mencapai 17.112 orang. Akan tetapi, dengan pembangkit konvensional, penduduk Bawean kesulitan dalam segi ekonomi dan ketersediaan bahan bakar. Upaya peningkatan kapasitas dari pembangkit perlu ditingkatkan sebab pemadaman listrik merugikan perekonomian dari warga setempat. Energi terbarukan seperti energi surya dapat menjadi salah satu pembangkit alternatif karena pulau Bawean memiliki potensi energi surya yang besar dengan rata-rata intensitas radiasi matahari sebesar 5,5 kWh/m2/hari. Hal ini menjadikan Pulau Bawean sebagai salah satu daerah yang berpotensi untuk pengembangan energi surya. Di samping itu, masyarakat Bawean masih kesulitan mengakses layanan telekomunikasi akibat penyediaan akses internet yang belum merata, khususnya penyedia WiFi yang sangat jarang ditemui. Seiring dengan berkembangnya teknologi seputar energi baru terbarukan dan telekomunikasi, pengaplikasian teknologi tepat guna diperlukan di daerah terpencil seperti Pulau Bawean. Salah satu solusi yang dapat diimplementasikan adalah memasang photovoltaic dengan tipe hybrid untuk menyuplai energi yang dibutuhkan oleh modem WiFi guna menunjang kebutuhan masyarakat setempat. Selain itu, beban yang dapat disuplai adalah berupa sebuah masjid, mengingat 100% penduduk Pulau Bawean memeluk Agama Islam. Dengan demikian, maka pelaksanaan kegiatan peribadatan tidak terganggu oleh adanya pemadaman bergilir.
Harmonic assessment on two photovoltaic inverter modes and mathematical models on low voltage network power quality Penangsang, Ontoseno; Wibowo, Rony Seto; Aryani, Ni Ketut; Prasetyo, Mario Dwi; Arianto, Marcel Nicky; Lutfi, Aulia Amjad
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 6: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i6.pp5951-5965

Abstract

Power quality is a crucial aspect of designing a large-scale photovoltaic power plant, particularly regarding harmonics caused by inverter switching. This research aimed to analyze harmonics in a system using electrical transient analyzer program (ETAP) Power Station 20.5.0 to uncover the effect of irradiance on the inverters’ power quality running at 85% and 100% power factors. We analyzed both voltage and current total harmonic distortion (THDi and THDv) from the simulation and compared them with the mathematical model. Moreover, we analyzed the effect of changes in irradiance level on harmonics and reactive power penetration, which influenced power losses in transformers and cables. Inverters at 85% power factor experienced an increase in THDi, whereas those at 100% power factor decreased. Inverters with 85% power factor experienced more frequent switching, causing more prominent distortion. The magnitude of THDv increased proportionally with the rise of irradiance level. Inverters at 85% had a higher THDv value because of the excessive reactive power compensation when irradiance rose. Irradiance level had an inverse relationship with system losses since high irradiance levels led to lower losses as less power was required through transmission lines and transformers. Moreover, losses at 85% power factor were higher since the high harmonics caused additional losses.
Smart Microgrid : Power Monitoring And Management System With Self-Healing Ability Dintika, Arief Fajariandi; Penangsang, Ontoseno; Aryani, Ni Ketut
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 9, No 1 (2025): January
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/jaree.v9i1.427

Abstract

This research presents a smart microgrid power monitoring and management system with self-healing ability. Solar power plants have been integrated into the microgrid, which previously relied on DG and PLN power supply. However, the system’s monitoring and control are limited. This study develops an effective, efficient and reliable smart microgrid using integration of online monitoring and control system, power management system and self-healing ability. Online monitoring and control system is effectively to monitor and control the microgrid, can detect and analyze potential fault on grid at ease. Power management system is necessary to enhance efficiency and reliability to optimize power distribution. Then, with self-healing ability, enable to detect, to prevent, to isolate and to recover fault on grid automatically, make the smart microgrids more efficient and reliable. Through the Siemens TIA Portal, the study compared the simulation results of a conventional microgrid system with a smart microgrid system incorporate with online monitoring and control system, power management system, self-healing ability. Using some fault scenarios, MTTD value, MTTR value and Availability Rate value are obtained. As result, the applied smart microgrid system decrease the duration to detect and to recover fault on microgrid efficiently, thus the reliability also increased significantly.
Co-Authors Adi Soeprijanto Arianto, Marcel Nicky Dintika, Arief Fajariandi Feby Agung Pamuji Lutfi, Aulia Amjad Ontoseno Penangsang Prasetiyono Hari Mukti Prasetyo, Mario Dwi Putra, Dimas Fajar Uman Ronny Mardiyanto, Ronny Rony Seto Wibowo