Comparison of Characteristics of Lithium-Ion Capacitor (Li-C) and Lithium-Ion Battery (Li-B) For Regenerative Braking System in Tram

Narhadi, Dinda Satya Pratiwi (2024) Comparison of Characteristics of Lithium-Ion Capacitor (Li-C) and Lithium-Ion Battery (Li-B) For Regenerative Braking System in Tram. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

The increasing demand for transportation and environmental concerns emphasize the importance of efficient mass transit. Electric trams are a leading solution due to their energy efficiency, despite high electricity consumption. Research aims to further reduce this consumption through regenerative braking, which converts kinetic energy into electrical energy. This study compares lithium-ion batteries (Li-B) and lithium-ion capacitors (Li-C) for energy storage in trams' regenerative braking systems, focusing on self-discharge using the pulse cycle method and sizing during braking. Data will be analyzed and input into Matlab/Simulink for thermal modeling, using the LRT Jabodebek as a real-world case study. The simulation accuracy is validated as MATLAB/Simulink models for both Li-B and Li-C accurately reflect real-world behavior under dynamic loads and then integrate with LRT Jabodebek data as a tram model. In pulse cycle testing, Li-C maintains a lower temperature (27.5°C) compared to Li-B (42°C), indicating better thermal management. In the LRT Jabodebek case, Li-C outperforms Li-B with more stable responses, smoother transitions, and a more gradual temperature rise, despite both showing similar current peaks around 13A and steady SOC decreases. Both Li-B and Li-C modules fit efficiently on the LRT Jabodebek roof, enhancing energy efficiency without compromising aerodynamics or passenger comfort. However, the Li-B system, with 7,524 cells, is significantly lighter at 526.68 kg compared to the 7,722-cell Li-C system's 2648.646 kg, making Li-B a more feasible option for minimizing weight impact on performance. Overall, while Li-C shows superior thermal stability and performance, Li-B's lighter weight makes it a practical choice for the LRT Jabodebek.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Trams, Regenerative Braking System, Lithium-ion Capacitor, Lithium-ion Battery, Characterization
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL220 Electric vehicles and their batteries, etc.
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Dinda Satya Pratiwi Narhadi
Date Deposited:	31 Jul 2024 02:12
Last Modified:	31 Jul 2024 02:12
URI:	http://repository.its.ac.id/id/eprint/109708

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