Improved Multilevel Multistage Constant-Current Constant-Voltage Superfast Charging of Multiple Cells

Yun, Sang-Sun; Kee, Seok-Cheol

doi:10.1007/s42835-021-00896-1

Cited by 11 publications

(5 citation statements)

References 31 publications

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“…The MCC charging method is designed to be compatible with a variety of battery types, including lead-acid, NiMH, and Li-ion batteries. When comparing the starting currents of both charging methods, it can be observed that the MCC charging process will require a slightly longer duration [72].…”

Section: Multistage Constant Current (Mcc) Methodsmentioning

confidence: 99%

Comprehensive Review of Electric Vehicle Technology and Its Impacts: Detailed Investigation of Charging Infrastructure, Power Management, and Control Techniques

et al. 2023

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Electric vehicles (EVs) are universally recognized as an incredibly effective method of lowering gas emissions and dependence on oil for transportation. Electricity, rather than more traditional fuels like gasoline or diesel, is used as the main source of energy to recharge the batteries in EVs. Future oil demand should decline as a result of the predicted rise in the number of EVs on the road. The charging infrastructure is considered as a key element of EV technology where the recent research is mostly focused. A strong charging infrastructure that serves both urban and rural areas, especially those with an unstable or nonexistent electrical supply, is essential in promoting the global adoption of EVs. Followed by different EV structures such as fuel-cell- and battery-integrated EVs, the charging infrastructures are thoroughly reviewed in three modes, specifically—off-grid (standalone), grid-connected, and hybrid modes (capable of both standalone and grid-connected operations). It will be interesting for the readers to understand in detail several energy-source-based charging systems and the usage of charging stations for different power levels. Towards the improvement of the lifetime and efficiency of EVs, charging methods and charging stations in integration with microgrid architectures are thoroughly investigated. EVs are a multi-energy system, which requires effective power management and control to optimize energy utilization. This review article also includes an evaluation of several power management and control strategies followed by the impact assessment of EVs on the utility grid. The findings and the future research directions provided in this review article will be extremely beneficial for EV operators and research engineers.

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Section: Multistage Constant Current (Mcc) Methodsmentioning

confidence: 99%

Comprehensive Review of Electric Vehicle Technology and Its Impacts: Detailed Investigation of Charging Infrastructure, Power Management, and Control Techniques

et al. 2023

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“…The com tion and functions of these two parts are as follows: Front End: This part is mainly composed of charging equipment and EVs. The ch ing pile uses the constant current and constant voltage stage charging method to su power for different types of EVs [28]. It transmits the real-time charging data to the base and executes various control commands of the judgment platform.…”

Section: Electric Vehicle Charging System Analysismentioning

confidence: 99%

“…The European Union mostly the European Norm (EN) standard; the charging standard is mainly IEC 61851-1 [29] United States uses the Society of Automotive Engineers (SAE) as the standard Front End: This part is mainly composed of charging equipment and EVs. The charging pile uses the constant current and constant voltage stage charging method to supply power for different types of EVs [28]. It transmits the real-time charging data to the database and executes various control commands of the judgment platform.…”

Section: Reference Basis For the Electric Vehicle Charging Processmentioning

confidence: 99%

An Early Warning Protection Method for Electric Vehicle Charging Based on the Hybrid Neural Network Model

Zheng

Gao

Zhu

et al. 2022

WEVJ

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During the charging process of the electric vehicle (EV), a spontaneous combustion accident may occur due to overheating of the battery, causing personal danger and property damage. To address the charging safety of EVs, this paper proposes a new hybrid EV charging process early warning protection method by combining Convolutional Long-Short Term Memory (ConvLSTM), the sliding window method, and the residual analysis method. The method is fully trained by extracting the deep features of EV charging data through ConvLSTM, eliminating the influence of erroneous transmission data through the sliding window method, and setting a reasonable warning threshold through the residual analysis method. The cross-validation results showed that among the four training sets, the ConvLSTM model of training, set three, had the highest prediction accuracy compared with the CNN, LSTM, BiLSTM and CNN-LSTM models, with RMSE reaching 0.029, MAPE reaching 11.37, and r2 reaching 0.89. Training set one had the worst prediction in the four training sets, and after using it to set the warning threshold, the alarm task was completed five sampling points earlier. Therefore, the hybrid model can quickly complete the safety warning task, thereby ensuring the safety of EV charging.

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“…e standard type of charging lithium-ion battery is the two-step process, CC-CV, as shown in Figure 11 [67]. During CC stage, the current rate and the cut of voltage depend on the lithium-ion battery chemistry.…”

Section: Constant Current-constant Voltage (Cc-cv)mentioning

confidence: 99%

An Extensive Critique on Electric Vehicle Components and Charging Systems

Iqubal

Sathiyan

Stonier³

et al. 2022

International Transactions on Electrical Energy Systems

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Nowadays the demand for electric vehicles has been increasing due to their dropping price range and zero emission of carbon. This article initially discusses the development of various electric vehicles from the past to the present. Since the electric motor plays a significant role in EVs, various motors suitable for EVs have been identified and surveyed in this work. The battery storage system is a critical component of EVs; hence, the article goes over all the different types of batteries, from lead acid to lithium ion. Additionally, the other vehicle components such as converters required for charging the batteries, intelligent controllers, electric vehicle charging process, power management, and battery energy management concepts that are available are discussed in detail. Moreover, we bring our work to a conclusion by outlining the research opportunities that remain for the academic and industrial groups. Therefore, the proposed work intends to assist as a state-of-the-art reference for researchers in the field of various electric vehicle configurations, storage systems, converter configurations, charging techniques, control methods, and modulation methods.

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Improved Multilevel Multistage Constant-Current Constant-Voltage Superfast Charging of Multiple Cells

Cited by 11 publications

References 31 publications

Comprehensive Review of Electric Vehicle Technology and Its Impacts: Detailed Investigation of Charging Infrastructure, Power Management, and Control Techniques

Comprehensive Review of Electric Vehicle Technology and Its Impacts: Detailed Investigation of Charging Infrastructure, Power Management, and Control Techniques

An Early Warning Protection Method for Electric Vehicle Charging Based on the Hybrid Neural Network Model

An Extensive Critique on Electric Vehicle Components and Charging Systems

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