Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4)

Battery current estimation rises as there is a need to eliminate current sensor components in battery management system (BMS). Elimination of current sensors is intended to reduce the cost of BMS production. In addition, the elimination of current sensors can also reduce the total power consumption...

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Main Authors: Madani, Ja'Far, Dewangga, Bobby Rian, Cahyadi, Adha Imam, Herdjunanto, Samiadji
Format: Conference or Workshop Item
Language:English
Published: 2022
Subjects:
Online Access:https://repository.ugm.ac.id/282190/1/Madani%20et%20al%20-%202022%20-%20Parameter_Optimization_of_Current_Estimator_for_Lithium_Polymer_Battery_LiFePO4.pdf
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author Madani, Ja'Far
Dewangga, Bobby Rian
Cahyadi, Adha Imam
Herdjunanto, Samiadji
author_facet Madani, Ja'Far
Dewangga, Bobby Rian
Cahyadi, Adha Imam
Herdjunanto, Samiadji
author_sort Madani, Ja'Far
collection UGM
description Battery current estimation rises as there is a need to eliminate current sensor components in battery management system (BMS). Elimination of current sensors is intended to reduce the cost of BMS production. In addition, the elimination of current sensors can also reduce the total power consumption in the BMS. Instead of utilizing current sensors to read the current values, a current-estimation scheme is installed in the BMS. In this paper a current-estimation algorithm is proposed based on a simple battery model by updating the internal capacitance that changes over time based on a polynomial function of State of Charge - Open Circuit Voltage (SOC-OCV) relationship. The optimal order of the polynomial function is then sought in the hope of minimizing current estimation errors. To demonstrate the effectiveness of the proposed method, current estimation was performed for the pulsed-load test. The current estimation results are then compared to the current sensor readings. The results show that the current estimate is able to follow the trend of the current sensor readings. © 2022 IEEE.
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spelling oai:generic.eprints.org:2821902023-11-28T07:14:03Z https://repository.ugm.ac.id/282190/ Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4) Madani, Ja'Far Dewangga, Bobby Rian Cahyadi, Adha Imam Herdjunanto, Samiadji Electrical and Electronic Engineering not elsewhere classified Battery current estimation rises as there is a need to eliminate current sensor components in battery management system (BMS). Elimination of current sensors is intended to reduce the cost of BMS production. In addition, the elimination of current sensors can also reduce the total power consumption in the BMS. Instead of utilizing current sensors to read the current values, a current-estimation scheme is installed in the BMS. In this paper a current-estimation algorithm is proposed based on a simple battery model by updating the internal capacitance that changes over time based on a polynomial function of State of Charge - Open Circuit Voltage (SOC-OCV) relationship. The optimal order of the polynomial function is then sought in the hope of minimizing current estimation errors. To demonstrate the effectiveness of the proposed method, current estimation was performed for the pulsed-load test. The current estimation results are then compared to the current sensor readings. The results show that the current estimate is able to follow the trend of the current sensor readings. © 2022 IEEE. 2022 Conference or Workshop Item PeerReviewed application/pdf en https://repository.ugm.ac.id/282190/1/Madani%20et%20al%20-%202022%20-%20Parameter_Optimization_of_Current_Estimator_for_Lithium_Polymer_Battery_LiFePO4.pdf Madani, Ja'Far and Dewangga, Bobby Rian and Cahyadi, Adha Imam and Herdjunanto, Samiadji (2022) Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4). In: 14th International Conference on Information Technology and Electrical Engineering (ICITEE). https://ieeexplore.ieee.org/document/9954077
spellingShingle Electrical and Electronic Engineering not elsewhere classified
Madani, Ja'Far
Dewangga, Bobby Rian
Cahyadi, Adha Imam
Herdjunanto, Samiadji
Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4)
title Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4)
title_full Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4)
title_fullStr Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4)
title_full_unstemmed Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4)
title_short Parameter Optimization of Current Estimator for Lithium Polymer Battery (LiFePO4)
title_sort parameter optimization of current estimator for lithium polymer battery lifepo4
topic Electrical and Electronic Engineering not elsewhere classified
url https://repository.ugm.ac.id/282190/1/Madani%20et%20al%20-%202022%20-%20Parameter_Optimization_of_Current_Estimator_for_Lithium_Polymer_Battery_LiFePO4.pdf
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