A Rule Based Power Split Strategy for Battery/Ultracapacitor Energy Storage Systems in Hybrid Electric Vehicles

Gokce, Kursad; Özdemir, Ayhan

doi:10.1016/s1452-3981(23)15918-9

Cited by 32 publications

(1 citation statement)

References 17 publications

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“…When these three circuit topologies are examined in terms of cost, control, and efficiency criteria, it can be said that the supercapacitor semi-active topology is a balanced choice compared to the others in EV applications. 36 In HESSs where battery and supercapacitor are used together in the literature, the EMSs used for power split of these two sources are rule based, 25,54 optimization based, [55][56][57] and frequency based 2,25,51,52,58-66 examined under three topics. 67 The rule-based and optimization-based EMSs are out of the scope of this paper.…”

Section: Frequency-based Energy Management In Evsmentioning

confidence: 99%

An overview of frequency‐based power split strategies in electric vehicles with battery/supercapacitor hybrid energy storage system

Çorapsız

Kahveci

2022

Energy Storage

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Energy management in hybrid energy storage systems (HESSs) consisting of battery and supercapacitor packages has an essential role in the efficient and safe use of energy storage devices. In the mentioned HESSs, with frequency separation‐based energy management, the source with slow dynamics (eg, batteries) is supported by other sources with fast dynamics (eg, supercapacitors). To realize power sharing in the battery/supercapacitor HESS, the load current is divided into low‐ and high‐frequency components and supplied/allocated from energy storage devices. This review touches on the historical development of electric vehicles and includes extensive information about the battery and supercapacitor. It also comprehensively analyzes frequency separation‐based power allocation strategies for battery/supercapacitors HESS. These strategies were investigated in detail regarding their features, advantages, and restrictions. In addition, interconnection circuit topologies and control techniques used in frequency‐based power allocation were explained comprehensively. As a result, this study will serve as a guide on frequency‐based power separation principles in HESS.

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Section: Frequency-based Energy Management In Evsmentioning

confidence: 99%

An overview of frequency‐based power split strategies in electric vehicles with battery/supercapacitor hybrid energy storage system

Çorapsız

Kahveci

2022

Energy Storage

View full text Add to dashboard Cite

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Electrochemical–Thermal Evaluation of an Integrated Thermal Management System for Lithium‐Ion Battery Modules

Bahiraei

Ghalkhani

Fartaj

et al. 2018

Advcd Theory and Sims

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Thermal management of lithium-ion (Li-ion) batteries using phase change materials (PCM) demonstrate advantages such as compactness and reduced weight compared to conventional active cooling systems. However, the heat accumulation in PCM due to ineffective cooling and added thermal inertia may lead to thermal management system failure. In this study, a hybrid active-passive thermal management system for a Li-ion battery module is presented. Graphite nanopowder and highly oriented pyrolytic graphite sheets are employed to improve the low thermal conductivity of the PCM. The thermophysical properties of the nano-enhanced PCM (NePCM) with various mass fractions are experimentally explored. A streamlined electrochemical-thermal coupled model for batteries is used to develop an air-assisted hybrid thermal management system model. The effects of nanoparticles mass fraction, thickness of the PCM layer, and air inlet temperature on the module thermal behavior during a standard driving cycle are investigated. The hybrid system can maintain the module temperature within the safe limits and provide excellent temperature uniformity. The results reveal that an enhanced thermal conductivity is essential to recover the thermal energy storage capacity of PCM during the driving cycle. The proposed cooling approach presents a promising avenue for enhanced thermal management of Li-ion battery modules.

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Selection of power sharing factor for hybrid battery/ultracapacitor energy storage‐based EV through load emulation technique

Dhote,

Lokhande,

Balapanuru

2023

Circuit Theory & Apps

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The hybrid battery/ultracapacitor (UC) energy storage system for electric vehicles (EVs) proved more reliable and cost‐effective. Even with the best possible sizing of these energy storage devices, unforeseen EV loading cycles are causing a single‐source transition. Mainly, the UC exhaustion in acceleration or transient loading shifts the loading to the battery, causing overdischarge and reducing the life span. This paper presents a deterministic current control algorithm to restrict the maximum allowable battery discharge current. The current discharge control in the battery/UC is implemented using symmetrical carrier‐based digital average current mode (DACM). The proposed energy management algorithm (EMA) with variable battery current sharing factor typically controls the current flow between the battery and the UC so that the battery current is always within safe limits. The DC‐DC converter with proposed novel EMA allows the system to regulate the voltage and current flow between the two power sources. By sharing the currents in this way and limiting the battery current to a safe value, the system helps to prolong the battery's life and ensures that the vehicle operates safely and reliably over the long term. The EV load profile emulator provides the current sharing under dynamic operating conditions. The hardware results are supported to validate the single‐source transition under hybrid energy sources.

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A Rule Based Power Split Strategy for Battery/Ultracapacitor Energy Storage Systems in Hybrid Electric Vehicles

Cited by 32 publications

References 17 publications

An overview of frequency‐based power split strategies in electric vehicles with battery/supercapacitor hybrid energy storage system

An overview of frequency‐based power split strategies in electric vehicles with battery/supercapacitor hybrid energy storage system

Electrochemical–Thermal Evaluation of an Integrated Thermal Management System for Lithium‐Ion Battery Modules

Selection of power sharing factor for hybrid battery/ultracapacitor energy storage‐based EV through load emulation technique

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