Rancang Bangun Prototype Battery Management System Untuk Baterai Lifepo4 Pada Bis Listrik Konversi ITS

Tanjung, M Tanri Akbar (2023) Rancang Bangun Prototype Battery Management System Untuk Baterai Lifepo4 Pada Bis Listrik Konversi ITS. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Battery Management System (BMS) merupakan perangkat elektronik untuk mengoptimalkan unjuk kerja baterai dan menjamin keamanan baterai dalam menyuplai beban di kendaraan listrik. BMS yang didisain dilengkapi dengan tiga komponen sistem terintegrasi. Sistem Passive Balancing menggunakan IC LTC6803-4 untuk melakukan pengukuran tegangan dan switching ke resistor beban. Sistem monitoring SOC menggunakan parameter yang didapat dari pengukuran arus dan tegangan sebagai masukan estimasi SOC yang dikomunikasikan melalui CAN bus. Sistem proteksi baterai menggunakan parameter rating tegangan (Overvoltage dan Undervoltage) untuk mencegah kerusakan baterai saat charging dan discharging baterai. Dalam melakukan disain sistem rangkaian BMS membutuhkan data karakteristik Baterai Pack (BP) terhadap perlakuan charging dan discharging. Performa BMS diuji dengan membandingkan hasil penerapan komponen sistem terhadap perlakuan baterai dan kondisi baterai. Dari hasil perbandingan dapat disimpulkan bahwa sistem Proteksi BMS mampu mencegah baterai dari perlakuan yang membahayakan menggunakan parameter Overvoltage 4100 mV dan Undervoltage 3000 mV untuk kemudian diaktuasi oleh Relay setelah 2.56 detik. Sistem monitoring SOC mampu mengakumulasi nilai muatan saat arus konstan 2.4 A menjadi penambahan SOC 10% per 6.68 menit. Sistem Passive Balancing mampu menyeimbangkan 5 dari 12 baterai dengan kondisi SOH relatif sama dan rentang tegangan 338 mv selama 2.26 jam. Perbaikan Perancangan BMS dapat dilakukan dengan menambah keakuratan monitoring SOC dan meningkatkan keandalan Hardware Rangkaian Balancing. Penerapan BMS pada sel dengan jumlah yang lebih banyak dari pengujian membutuhkan lebih dari satu modul Slave pada topologi Hardware BMS
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Battery Management System (BMS) is an electronic device to optimize battery performance and ensure battery safety in supplying loads in electric vehicles. The designed BMS is equipped with three integrated system components. The Passive Balancing system uses the LTC6803-4 IC to measure voltage and switch to the load resistor. The SOC monitoring system uses parameters obtained from current and voltage measurements as SOC estimation inputs which are communicated via the CAN bus. The battery protection system uses voltage rating parameters (Overvoltage and Undervoltage) to prevent battery damage when charging and discharging the battery. In designing the BMS circuit system, it requires data on the characteristics of the Battery Pack (BP) for charging and discharging treatment. BMS performance is tested by comparing the results of applying system components to battery treatment and battery conditions. From the comparison results it can be concluded that the BMS Protection system is able to prevent the battery from being treated dangerously using the Overvoltage 4100 mV and Undervoltage 3000 mV parameters to then be actuated by the Relay after 2.56 seconds. The SOC monitoring system is able to accumulate a load value at a constant current of 2.4 A to an additional 10% SOC per 6.68 minutes. The Passive Balancing system is able to balance 5 out of 12 batteries with relatively the same SOH conditions and a voltage range of 338 mv for 2.26 hours. BMS design improvements can be made by increasing the accuracy of SOC monitoring and increasing the reliability of the Balancing Circuit Hardware. The application of BMS to cells with a greater number of tests requires more than one Slave module in the Hardware BMS topology

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Battery Management System, SOC, Passive Balancing, LTC6803-4, LiFePo4, Overvoltage, Undervoltage.
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics 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:	M Tanri Akbar T
Date Deposited:	20 Jan 2023 06:49
Last Modified:	20 Jan 2023 06:49
URI:	http://repository.its.ac.id/id/eprint/95532

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