Jumiyatun, Jumiyatun (2025) Pengembangan Sistem Penyimpan Energi Hibrida Baterai Superkapasitor Berbasis Fuzzy Lowpass Filter Dengan Beban Dinamis. Doctoral thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sistem penyimpanan energi berbasis baterai merupakan teknologi utama yang telah diterapkan di berbagai bidang, seperti kendaraan listrik, sistem kelistrikan terisolasi, dan sistem jala-jala. Namun, keterbatasan masa pakai baterai yang dipengaruhi oleh jumlah siklus pengisian/pengosongan serta kedalaman pengosongan daya setiap kali digunakan menjadi kendala utama yang meningkatkan biaya operasional. Untuk mengatasi masalah ini, penggabungan superkapasitor (SC) dengan rangkaian kontrol dirancang untuk meningkatkan kinerja baterai dan memperpanjang umurnya, terutama pada sistem kelistrikan perumahan mandiri. Profil beban (load profile) perumahan, seperti penggunaan lemari es, air conditioner (AC), oven, microwave, water heater, mesin cuci dan sistem pengisian daya yang bersifat sementara dan menghasilkan beban pulsa, dapat dioptimalkan dengan integrasi ini sehingga fluktuasi beban dapat ditangani secara lebih efisien. Penelitian ini mengembangkan sistem penyimpanan energi hibrida yang mengintegrasikan baterai, SC pada beban pulsa, menggunakan sumber photovoltaic (PV) dengan topologi full-aktif. Konverter buck-boost dua arah digunakan untuk mengelola aliran energi antara baterai dan SC, menggunakan kontrol Fuzzy-PI dan low-pass filter (LPF) untuk mengatasi pulsa beban yang tinggi serta mengurangi kedalaman pengosongan baterai. Dalam sistem ini, SC bertugas menyerap pulsa beban melalui konverter, sedangkan baterai melayani beban yang lebih stabil. Kontribusi utama penelitian ini meliputi dua aspek: pertama, perancangan sistem kontrol HESS baterai-superkapasitor dengan topologi semi-aktif untuk menurunkan depth of discharge (DoD) dan memperpanjang usia baterai; kedua, Perancangan HESS dengan topologi full-aktif berbasis Fuzzy lowpass filter untuk mengoptimalkan performa sistem dalam menangani beban pulsa. Hasil simulasi menunjukkan bahwa sistem HESS dengan topologi semi-aktif menggunakan Bidirectional DC-DC Converter (BDC) di sisi SC mampu mengurangi DoD baterai secara signifikan. Penambahan SC sebesar 3% dari total kapasitas meningkatkan siklus hidup baterai dari 1.950 menjadi 2.554 siklus atau masa pakai dari 5,34 tahun menjadi 7 tahun. Sementara itu, pada topologi full-aktif, BDC ditempatkan di sisi baterai dan SC dengan kombinasi kontrol fuzzy-PI dan LPF untuk menjaga stabilitas tegangan dan mengatur arus SC agar SoC tetap aman. Pada frekuensi cut-off 10 Hz, siklus hidup baterai meningkat dari 2.120 menjadi 2.868 siklus atau masa pakai dari 5,81 tahun menjadi 7,86 tahun saat frekuensi cut-off diturunkan menjadi 5 Hz, menunjukkan efektivitas sistem dalam memperpanjang umur baterai.
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Battery-based energy storage systems are the main technology applied in various fields, such as electric vehicles, isolated electrical systems, and grid systems. However, the battery life limitation, influenced by the number of charge/discharge cycles and the depth of discharge each time it is used, becomes a major obstacle that increases operational costs. To address these issues, incorporating supercapacitors (SCs) with control circuits is designed to improve battery performance and extend their lifespan, especially in self-contained residential electrical systems. Residential load profiles, such as refrigerators, air
conditioners, microwave ovens, and transient charging systems that generate pulse loads, can be optimized with this integration so that load fluctuations can be handled more efficiently. This research develops a hybrid energy storage system that integrates a battery and SC at pulse load using a photovoltaic (PV) source with a full-active topology. A bidirectional buck-boost converter manages the energy flow between the battery and SC, employing fuzzy-PI control and a low-pass filter (LPF) to cope with high load pulses and reduce the battery discharge depth. In this system, the SC is in charge of absorbing load pulses through the converter, while the battery serves a more stable load. The main contributions of this research include two aspects: first, the design of a battery-supercapacitor HESS intelligent system with semiactive topology to reduce the depth of discharge and extend battery life; second, the design of a HESS with full-active topology based on Artificial Intelligence to optimize the system performance in handling pulse loads. Simulation results show that the HESS system with semi-active topology using a BDC on the supercapacitor (SC) side can significantly reduce the DoD of the battery. Adding SC at 3% of the total capacity increases the battery cycle life from 1,950 to 2,554 cycles or the lifetime from 5.34 years to 7 years. Meanwhile, in the full-active topology, the BDC is placed on the battery and SC sides with a combination of fuzzy-PI and LPF control to maintain voltage stability and regulate SC current to keep the SoC safe. At a cut-off frequency of 10 Hz, the battery cycle life increases from 2,120 to 2,868 cycles or the lifetime from 5.81 years to 7.86 years when the cut-off frequency is lowered to 5 Hz, demonstrating the system’s effectiveness in extending battery life
| Item Type: | Thesis (Doctoral) |
|---|---|
| Uncontrolled Keywords: | Kata kunci: HESS, baterai, superkapasitor,DoD, BDC, beban pulsa |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2943 Battery chargers. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872.C65 Supercapacitors. |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20001-(S3) PhD Thesis |
| Depositing User: | Jumiyatun Jumiyatun |
| Date Deposited: | 05 Feb 2025 06:56 |
| Last Modified: | 05 Feb 2025 06:56 |
| URI: | http://repository.its.ac.id/id/eprint/118205 |
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