Challenges and Advancements in Fast Charging Solutions for EVs: A Technological Review

Chen, Chengxiu; Shang, Fei; Salameh, Mohamad; Krishnamurthy, Mahesh

doi:10.1109/itec.2018.8450139

Cited by 32 publications

(19 citation statements)

References 23 publications

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“…In addition, it is difficult to maintain the uniformity of temperature within a single cell or between the cells in the battery pack because of the small heat capacity of air. Another drawback of air cooling is its limitation by the blower's power and size [80]. Figure 14a shows the mechanism of air-cooling system [76].…”

Section: Air Coolingmentioning

confidence: 99%

“…With a larger heat capacity, liquid can offer more effective heat transfer in a smaller volume even if the coolant is not in direct contact with cells. Liquid systems do require more maintenance and components, which adds to the complexity and cost of the system [80]. Figure 15a shows the mechanism of the liquid cooling system [76].…”

Section: Liquid Coolingmentioning

confidence: 99%

“…The heat stored in the PCC material can also release the heat back to the battery cell when the temperature decreases during the cold winter, keeping the cells warmer than the case without the PCC in place [76]. This technology is able to handle the cells on an individual level and can prevent a domino effect from happening if one cell were to overheat [80].…”

Section: Phase Change Materialsmentioning

confidence: 99%

“…The higher thermal conductivity of graphite in the PCC can guarantee uniformity of temperature within the pack and its higher heat capacity allows the absorption of the heat from the cells without significantly increasing the temperature of the PCC coolant. The maximum temperature limit can be flexible by choosing the suitable wax with the desired phase change temperature [80]. (c) principles of how PCC cooling system works [84].…”

Section: Phase Change Materialsmentioning

confidence: 99%

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Advanced Electric Vehicle Fast-Charging Technologies

et al. 2019

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Negative impacts from the dominant use of petroleum-based transportation have propelled the globe towards electrified transportation. With this thrust, many technological challenges are being encountered and addressed, one of which is the development and availability of fast-charging technologies. To compete with petroleum-based transportation, electric vehicle (EV) battery charging times need to decrease to the 5–10 min range. This paper provides a review of EV fast-charging technologies and the impacts on the battery systems, including heat management and associated limitations. In addition, the paper presents promising new approaches and opportunities for power electronic converter topologies and systems level research to advance the state-of-the-art in fast-charging.

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Section: Air Coolingmentioning

confidence: 99%

Section: Liquid Coolingmentioning

confidence: 99%

Section: Phase Change Materialsmentioning

confidence: 99%

Section: Phase Change Materialsmentioning

confidence: 99%

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Advanced Electric Vehicle Fast-Charging Technologies

et al. 2019

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“…With the fast development of the EV industry, many EV-related research papers have been published including subject-oriented EV review articles [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. General technologies for EV, including EV types, energy storage, energy generation, and energy management were reviewed in [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

System Planning of Grid-Connected Electric Vehicle Charging Stations and Key Technologies: A Review

2019

Energies

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The optimal planning of electric vehicle (EV) charging stations (ECSs) with advanced control algorithms is very important to accelerate the development of EVs, which is a promising solution to reduce carbon emissions of conventional internal combustion engine vehicles (ICEVs). The large and fluctuant load currents of ECSs can bring negative impacts to both EV-related power converters and power distribution systems if the energy flow is not regulated properly. Recent review papers related to EVs found in open literature have mainly focused on the design of power converter-based chargers and power interfaces, analyses of power quality (PQ) issues, the development of wireless charging techniques, etc. There is currently no review paper that focuses on key technologies in various system configurations, optimal energy management and advanced control issues in practical applications. To compensate for this insufficiency and provide timely research directions, this paper reviews 143 previously published papers related to the aforementioned topics in recent literature including 17 EV-related review papers found in Institute of Electrical and Electronics Engineers (IEEE)/Institution of Engineering and Technology (IET) (IEEE/IET) Electronic Library (IEL) and ScienceDirect OnSite (SDOS) databases. In this paper, existing system configurations, related design methods, algorithms and key technologies for ECSs are systematically reviewed. Based on discussions given in the reviewed papers, the most popular ECS configuration is a hybrid system design that integrates renewable energy (RE)-based power generation (REBPG), various energy storage systems (ESSs), and utility grids. It is noteworthy that the addition of an ESS with properly designed control algorithms can simultaneously buffer the fast, fluctuant power demand during charging, smooth the intermittent power generation of REBPG, and increase the overall efficiency and operating flexibility of ECSs. In addition, verifying the significance of the flexibility and possible profits that portable ESSs provide in ECS networks is a potential research theme in ECS fields, in which the potential applications of portable ESSs in the grid-tied ECSs are numerous and could cover a full technical spectrum.

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