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All Journal Jurnal Informatika dan Teknik Elektro Terapan Jurnal Teknik Elektro
Muhammad Cahyo Bagaskoro
State University of Malang
Computer Science & IT Electrical & Electronics Engineering

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EVALUASI KUALITAS SF6 DALAM SWITCHGEAR BERINSULASI GAS 150KV Aripriharta -; Evie Dwi Jayanti; Irham Fadlika; Sujito Sujito; Muhammad Cahyo Bagaskoro
Jurnal Informatika dan Teknik Elektro Terapan Vol 12, No 3 (2024)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v12i3.4449

Abstract

Penurunan kualitas SF6 pada switchgear dapat terjadi seiring berjalannya waktu akibat adanya pelepasan sebagian yang mengakibatkan degradasi kinerja switchgear. Penelitian ini bertujuan untuk mengamati dan menganalisis lima parameter penting yang berpotensi mengurangi kemurnian SF6, yang disebabkan oleh pelepasan sebagian dan penurunan fungsi isolasi. Kami melakukan penilaian langsung di lokasi untuk mengevaluasi kemurnian SF6 pada switchgear 150kV yang berlokasi di Simpang, Indonesia. Evaluasi ini menggunakan standar IEEE sebagai acuan untuk menilai tingkat pengotor dan memastikan akurasi hasil. Dari hasil analisis, ditemukan bahwa nilai rata-rata kemurnian SF6 pada switchgear yang diteliti adalah kurang dari 97%, dengan rata-rata titik embun tercatat pada -21,252°C, kadar air rata-rata mencapai 1684,7 ppmv, dan kadar gas SO2 rata-rata sebesar 3,4069 ppmv. Berdasarkan temuan tersebut, dapat disimpulkan bahwa kualitas SF6 pada GIS di Simpang telah mengalami penurunan di bawah tingkat yang diperbolehkan, yang berpotensi menyebabkan penurunan signifikan dalam kinerja sistem secara keseluruhan.
State of Charge Balancing Analysis Using Droop Control on Energy Storage System Muhammad Cahyo Bagaskoro; Aripriharta; Muhammad Afnan Habibi; Gabrielley Ferdhiansyah Riyadi
Jurnal Teknik Elektro Vol. 16 No. 2 (2024): Jurnal Teknik Elektro
Publisher : LPPM Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v16i2.8280

Abstract

The growing energy crisis has driven the global shift toward renewable energy development. Governments are taking significant steps by promoting diverse sources such as photovoltaic (PV), wind turbines, and battery systems. Among these, Battery Energy Storage Systems (BESS) play a crucial role in decentralized energy generation, especially in DC microgrids. Within BESS, Battery Energy Storage Units (BESUs) are vital components, where monitoring the State of Charge (SOC) is essential. The Coulomb Counter (CC) method is widely used due to its reliability in SOC estimation. This study introduces a dynamic SOC balancing strategy using droop control, aiming to maintain uniform SOC across multiple BESUs. The proposed method regulates BESU discharge behaviour to achieve SOC parity and optimize energy distribution throughout the microgrid. Simulations under various operating scenarios charging and discharging modes with different SOC levels were conducted using the MATLAB/SIMULINK® environment. The results show that the control approach effectively equalizes SOC levels under non-uniform initial conditions. The balancing duration varied according to the initial SOC difference, highlighting the controller's adaptability. Although the study did not directly measure battery lifespan or energy efficiency, enhanced SOC uniformity is expected to reduce current imbalances and operating stress, potentially improving long-term system reliability. This research offers valuable insights into the control and management of BESS, supporting the stable integration of renewable energy in modern microgrid applications.
Co-Authors Aripriharta - Evie Dwi Jayanti Gabrielley Ferdhiansyah Riyadi Irham Fadlika Joumil Aidil Saifuddin Muhammad Afnan Habibi