Desain Sistem Hybrid Powertrain Baterai dan Superkapasitor pada Kendaraan Roadster ITS

Safitri, Salsabila Nur Aulia (2026) Desain Sistem Hybrid Powertrain Baterai dan Superkapasitor pada Kendaraan Roadster ITS. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Keterbatasan baterai dalam menangani fluktuasi daya pada operasi dinamis menjadi salah satu tantangan utama dalam pengembangan kendaraan listrik. Baterai memiliki densitas daya yang relatif rendah sehingga rentan mengalami degradasi akibat ketidakseimbangan daya selama pembebanan dinamis. Penelitian ini bertujuan untuk merancang dan menyimulasikan sistem hybrid powertrain pada Kendaraan Roadster ITS dengan mengintegrasikan baterai Lithium Iron Phosphate (LiFePO₄), superkapasitor, dan motor BLDC. Spesifikasi komponen utama powertrain ditentukan berdasarkan hasil perhitungan total tractive effort dan analisis kebutuhan daya operasional kendaraan. Superkapasitor diintegrasikan sebagai penyimpan energi pendukung untuk meningkatkan keseimbangan daya pada sistem. Simulasi dilakukan menggunakan MATLAB/Simulink untuk membandingkan performa sistem powertrain pada konfigurasi dengan dan tanpa superkapasitor pada berbagai kondisi State of Charge (SOC), dengan Energy Management System (EMS) berbasis Fuzzy Logic Controller (FLC) yang mengatur pembagian daya antara baterai dan superkapasitor. Hasil penelitian menunjukkan bahwa integrasi superkapasitor mampu meningkatkan keseimbangan daya dibandingkan konfigurasi tanpa superkapasitor. Kinerja terbaik diperoleh pada kondisi SOC > 80% (95 V), yang ditunjukkan oleh pembebanan baterai paling rendah serta kontribusi daya superkapasitor paling besar di antara seluruh konfigurasi yang diuji. Strategi EMS berbasis Fuzzy Logic Controller terbukti efektif dalam menjaga keseimbangan daya antara baterai dan superkapasitor, sehingga mampu mengurangi pembebanan baterai serta menjaga kestabilan tegangan pada DC Link Bus selama pembebanan dinamis kendaraan.
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Battery limitations in handling power fluctuations during dynamic operating conditions remain one of the major challenges in electric vehicle development. Due to their relatively low power density, batteries are susceptible to degradation caused by power imbalance under dynamic loading conditions. This study aims to design and simulate a hybrid powertrain system for the ITS Roadster electric vehicle by integrating a Lithium Iron Phosphate (LiFePO₄) battery, a supercapacitor, and a Brushless Direct Current (BLDC) motor. The specifications of the main powertrain components were determined based on total tractive effort calculations and an analysis of the vehicle's operational power requirements. The supercapacitor was integrated as an auxiliary energy storage device to improve the system's power balance. Simulations were carried out using MATLAB/Simulink to compare the performance of the powertrain system with and without supercapacitor integration under various State of Charge (SOC) conditions. Power sharing between the battery and the supercapacitor was managed by an Energy Management System (EMS) based on a Fuzzy Logic Controller (FLC). The simulation results demonstrate that integrating the supercapacitor improves the system's power balance compared with the configuration without a supercapacitor. The best performance was achieved at an SOC above 80% (95 V), as indicated by the lowest battery loading and the highest supercapacitor power contribution among all evaluated configurations. Furthermore, the FLC-based EMS effectively maintained the power balance between the battery and the supercapacitor, thereby reducing battery loading and maintaining the stability of the DC Link Bus voltage under dynamic loading conditions.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Baterai, Fuzzy Logic Controller, Hybrid Powertrain, Keseimbangan Daya, Superkapasitor, Battery, Power Balance, Supercapacitor
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Salsabila Nur Aulia Safitri
Date Deposited:	21 Jul 2026 01:55
Last Modified:	21 Jul 2026 01:55
URI:	http://repository.its.ac.id/id/eprint/135974

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