An Improved Phase-Shifted Full-Bridge Converter with Extended ZVS Operation Range for EV Battery Charger Applications

Feizi, Mohsen; Beiranvand, Reza

doi:10.1109/pedstc49159.2020.9088444

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…Furthermore, the driving range is acknowledged as the most important factor. The range of an EV on a full charge or tank is seen as a significant disadvantage when compared to IC engine vehicles [66]. The above-mentioned technical barriers are represented as shown in Fig.…”

Section: J Driving Rangementioning

confidence: 99%

Emerging Intelligent Bidirectional Charging Strategy Based on Recurrent Neural Network Accosting EMI and Temperature Effects for Electric Vehicle

et al. 2022

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Transportation is currently advancing towards Electric Vehicle (EV) technology. This paper presents a brief and systematic analysis of the real-time issues obtained in Electric Vehicles (EVs) due to the various ranges of energy storage devices. In general, EV energy management system is integrated with power electronic circuits for effective power conversion and reliable operation. Some issues are addressed while using the batteries in EV systems such as charging time, efficiency of battery, and raw materials. Not only battery issues but also real-time non-technical issues and operational issues are also discussed in this paper. During energy conversion with power electronic circuits, the system attains extreme temperature levels which in turn reduces the performance of the system. To maintain an optimum temperature level, it is important to study the temperature effect of the system at the most prior levels. Due to the adaption of power electronic components, some extent of noise is generated, technically treated as Electromagnetic Interference (EMI), as system capacity increases the EMI content also improved proportionately. Therefore, to mitigate the EMI effect, the low pass filter-based EMI filter is introduced in the system such that the noise level is suppressed. Bidirectional Charging System (BCS) is one of the emerging technologies in EV to obtain autonomous power supply systems in the form of Vehicle to Grid (V2G), Grid to Vehicle (G2V), and Vehicle to Load (V2L). To know the behaviour of BCS the proposed RNN controller is employed and is compared with ANN bidirectional charging model. BCS charging system with RNN controller has better dynamic response to exchange the power via DC/DC converter and AC/DC converter as compared to ANN controller.

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Section: J Driving Rangementioning

confidence: 99%

Emerging Intelligent Bidirectional Charging Strategy Based on Recurrent Neural Network Accosting EMI and Temperature Effects for Electric Vehicle

et al. 2022

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“…Level 3 charger, because of their rating powers, are usually installed outside the vehicle (off-board). Also for level 3 off-board charger a large amount of different solutions is studied in literature [43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62]. Since it is mandatory to guarantee galvanic isolation between the AC supply circuit and the DC output circuit according to the IEC EN 61,851-23 standard, in this paragraph only isolated off-board charger have been presented.…”

Section: Off-board Chargermentioning

confidence: 99%

“…If unidirectional power flow is required, a LLC resonant converter is chosen, in most cases, as power interface between the dc bus of the AC/DC converter and the EV battery because of to its advantages over other resonant topologies [56,57], such as: the ability to operate at zero-voltage switching (ZVS) or zero-current switching (ZCS), it allows a wide output voltage regulation, the output filter consists only of a capacitor and not of an inductor and capacitor (LC) filter [58]. Another unidirectional DC/DC converter used in case of unidirectional off-board charger is the phase shifted full bridge converter [59,60], whose scheme is reported in Fig. 9.…”

Section: Unidirectional Dc/dc Convertermentioning

confidence: 99%

Electric Vehicles Charging Technology Review and Optimal Size Estimation

Brenna

Foiadelli

Leone

et al. 2020

J. Electr. Eng. Technol.

210

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Many different types of electric vehicle (EV) charging technologies are described in literature and implemented in practical applications. This paper presents an overview of the existing and proposed EV charging technologies in terms of converter topologies, power levels, power flow directions and charging control strategies. An overview of the main charging methods is presented as well, particularly the goal is to highlight an effective and fast charging technique for lithium ions batteries concerning prolonging cell cycle life and retaining high charging efficiency. Once presented the main important aspects of charging technologies and strategies, in the last part of this paper, through the use of genetic algorithm, the optimal size of the charging systems is estimated and, on the base of a sensitive analysis, the possible future trends in this field are finally valued.

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“…However, ZVS is dependent on the energy stored in the inductors, which decreases with the amplitude of the current. Consequently, the PS-PWM full-bridge dc-dc converter cannot maintain the ZVS under light load conditions (low output current), as the energy accumulated in the leakage inductance of the transformer is insufficient to guarantee the discharge of the output capacitances of transistors in the lagging leg [5][6][7][8]. The energy needed to maintain the ZVS can be delivered by increasing the converter's circulating current, leading to significant conduction losses and compromising the converter's efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The dc-dc converter can incorporate an active snubber circuit to minimise the switching losses of the controlled rectifier. Various techniques and snubber circuits were designed for this purpose [5][6][7][8]. The capacitive snubber can minimise the turn-off losses by ZVS.…”

Section: Introductionmentioning

confidence: 99%

Soft-Switching Full-Bridge DC-DC Converter with Energy Recovery Capacitor Snubber

et al. 2023

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This paper describes a high-frequency soft-switching dc-dc converter with a simple energy recovery capacitor snubber on the secondary side. The presented dc-dc full-bridge converter with the energy recovery snubber removes the main drawbacks of the classic Phase Shifted PWM (PS-PWM) dc-dc converter, e.g., the circulating current flowing during the free-wheeling interval and dependency of the soft switching on the load current. The converter utilizes a full-bridge topology with pulse-width modulation and a centre-tapped full-wave controlled rectifier with one active switch. The zero-voltage switching on the primary side is ensured by utilising only the magnetizing current of the high-frequency transformer, and thus is load-independent. The proposed energy recovery snubber is described in detailed time waveforms of the converter and verified by simulation. The control algorithm also removes the circulating current, which is typical for PS-PWM converters. The soft-switching of the secondary side transistor is achieved by a simple capacitor snubber with an energy-recovery circuit connected to the output of the dc-dc converter. The principle of operation is verified by measurements on a 2 kW, 50 kHz laboratory model of the proposed dc-dc converter.

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An Improved Phase-Shifted Full-Bridge Converter with Extended ZVS Operation Range for EV Battery Charger Applications

Cited by 9 publications

References 9 publications

Emerging Intelligent Bidirectional Charging Strategy Based on Recurrent Neural Network Accosting EMI and Temperature Effects for Electric Vehicle

Emerging Intelligent Bidirectional Charging Strategy Based on Recurrent Neural Network Accosting EMI and Temperature Effects for Electric Vehicle

Electric Vehicles Charging Technology Review and Optimal Size Estimation

Soft-Switching Full-Bridge DC-DC Converter with Energy Recovery Capacitor Snubber

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