State-of-Charge Estimation of Batteries for Hybrid Urban Air Mobility

This paper proposes a framework for accurately estimating the state-of-charge (SOC) and current sensor bias, with the aim of integrating it into urban air mobility (UAM) with hybrid propulsion. Considering the heightened safety concerns in an airborne environment, more reliable state estimation is r...

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Main Authors: Min Young Yoo, Jung Heon Lee, Joo-Ho Choi, Jae Sung Huh, Woosuk Sung
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Aerospace
Subjects:
Online Access:https://www.mdpi.com/2226-4310/10/6/550
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author Min Young Yoo
Jung Heon Lee
Joo-Ho Choi
Jae Sung Huh
Woosuk Sung
author_facet Min Young Yoo
Jung Heon Lee
Joo-Ho Choi
Jae Sung Huh
Woosuk Sung
author_sort Min Young Yoo
collection DOAJ
description This paper proposes a framework for accurately estimating the state-of-charge (SOC) and current sensor bias, with the aim of integrating it into urban air mobility (UAM) with hybrid propulsion. Considering the heightened safety concerns in an airborne environment, more reliable state estimation is required, particularly for the UAM that uses a battery as its primary power source. To ensure the suitability of the framework for the UAM, a two-pronged approach is taken. First, realistic test profiles, reflecting actual operational scenarios for the UAM, are used to model the battery and validate its state estimator. These profiles incorporate variations in battery power flow, namely, charge-depleting and charge-sustaining modes, during the different phases of the UAM’s flight, including take-off, cruise, and landing. Moreover, the current sensor bias is estimated and corrected concurrently with the SOC. An extended Kalman filter-based bias estimator is developed and experimentally validated using actual current measurements from a Hall sensor, which is prone to noise. With this correction, a SOC estimation error is consistently maintained at 2% or lower, even during transitions between operational modes.
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spelling doaj.art-a561dbb9f95d437e9ba4379fd9f61c982023-11-18T08:50:10ZengMDPI AGAerospace2226-43102023-06-0110655010.3390/aerospace10060550State-of-Charge Estimation of Batteries for Hybrid Urban Air MobilityMin Young Yoo0Jung Heon Lee1Joo-Ho Choi2Jae Sung Huh3Woosuk Sung4School of Aerospace & Mechanical Engineering, Korea Aerospace University, Goyang-si 10540, Gyeonggi-do, Republic of KoreaDepartment of Smart Air Mobility, Korea Aerospace University, Goyang-si 10540, Gyeonggi-do, Republic of KoreaSchool of Aerospace & Mechanical Engineering, Korea Aerospace University, Goyang-si 10540, Gyeonggi-do, Republic of KoreaAerospace Propulsion Division, Korea Aerospace Research Institute, Yuseong-gu, Daejeon 34133, Republic of KoreaSchool of Mechanical System and Automotive Engineering, Chosun University, Gwangju 61452, Republic of KoreaThis paper proposes a framework for accurately estimating the state-of-charge (SOC) and current sensor bias, with the aim of integrating it into urban air mobility (UAM) with hybrid propulsion. Considering the heightened safety concerns in an airborne environment, more reliable state estimation is required, particularly for the UAM that uses a battery as its primary power source. To ensure the suitability of the framework for the UAM, a two-pronged approach is taken. First, realistic test profiles, reflecting actual operational scenarios for the UAM, are used to model the battery and validate its state estimator. These profiles incorporate variations in battery power flow, namely, charge-depleting and charge-sustaining modes, during the different phases of the UAM’s flight, including take-off, cruise, and landing. Moreover, the current sensor bias is estimated and corrected concurrently with the SOC. An extended Kalman filter-based bias estimator is developed and experimentally validated using actual current measurements from a Hall sensor, which is prone to noise. With this correction, a SOC estimation error is consistently maintained at 2% or lower, even during transitions between operational modes.https://www.mdpi.com/2226-4310/10/6/550lithium-ion batteryurban air mobilitycharge-sustainingequivalent circuit modelextended kalman filterstate-of-charge (SOC)
spellingShingle Min Young Yoo
Jung Heon Lee
Joo-Ho Choi
Jae Sung Huh
Woosuk Sung
State-of-Charge Estimation of Batteries for Hybrid Urban Air Mobility
Aerospace
lithium-ion battery
urban air mobility
charge-sustaining
equivalent circuit model
extended kalman filter
state-of-charge (SOC)
title State-of-Charge Estimation of Batteries for Hybrid Urban Air Mobility
title_full State-of-Charge Estimation of Batteries for Hybrid Urban Air Mobility
title_fullStr State-of-Charge Estimation of Batteries for Hybrid Urban Air Mobility
title_full_unstemmed State-of-Charge Estimation of Batteries for Hybrid Urban Air Mobility
title_short State-of-Charge Estimation of Batteries for Hybrid Urban Air Mobility
title_sort state of charge estimation of batteries for hybrid urban air mobility
topic lithium-ion battery
urban air mobility
charge-sustaining
equivalent circuit model
extended kalman filter
state-of-charge (SOC)
url https://www.mdpi.com/2226-4310/10/6/550
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