Design and Implementation of a High-Efficiency Multiple Output Charger Based on the Time-Division Multiple Control Technique

Tran, Van-Long; Vu, Hai-Nam; Tran, Dai-Duong; Choi, Woojin

doi:10.1109/tpel.2016.2551723

Cited by 15 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to (8), if the RMS value of U IN is constant, the RMS value of I V−C is constant as well, and…”

Section: Theoretical Analysismentioning

confidence: 99%

“…According to Fig. 5(a) as well as (8), the primary coil current IP can be obtained as Under the condition that U AB , L IN , and ω 0 are constants, the RMS value of I P is also a constant and is irrelevant to the other parameters of the resonant topology.…”

Section: Theoretical Analysismentioning

confidence: 99%

“…The advantages of CC and CV charging can be combined based on the characteristics of a battery. Generally, CC/CV hybrid charging is widely utilized in the EV industry [8], [9]. The typical profile of CC/CV hybrid charging is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Switching Hybrid LCC-S Compensation Topology for Constant Current/Voltage EV Wireless Charging

et al. 2019

View full text Add to dashboard Cite

Wireless power transfer (WPT) technology has been widely applied to automobile industries, household electronics and medical devices because of its many advantages. The hybrid battery charging scheme, which combines constant voltage (CV) and constant current (CC), is considered to be quite reasonable in view of the limitations of the conventional CC/CV implementation scheme. In this study, based on the inductance and double capacitances-series (LCC-S) compensation topology, a switching hybrid topology is proposed for CC/CV electric vehicle (EV) battery charging. The topology parameters are designed according to the specified CV and zero phase angle (ZPA). In the CC charging mode, two additional capacitances are added to the topology for CC and ZPA implementation. Based on the proposed weak communication, the CC and CV charging mode can be converted via two AC switches (ACSs). The proposed hybrid system provides a simple structure, easy controllability, and stable output. A 2.5-kW experimental prototype is configured to verify the proposed hybrid charger. The maximum DC efficiencies (at 2.5-kW) of the CC and CV charging modes are 89.28% and 88.33%, respectively. INDEX TERMS Wireless power transfer (WPT), electric vehicle (EV), switching hybrid topology, inductance and double capacitances-series (LCC-S), constant current/constant voltage (CC/CV).

show abstract

“…According to (8), if the RMS value of U IN is constant, the RMS value of I V−C is constant as well, and…”

Section: Theoretical Analysismentioning

confidence: 99%

Section: Theoretical Analysismentioning

confidence: 99%

See 1 more Smart Citation

A Switching Hybrid LCC-S Compensation Topology for Constant Current/Voltage EV Wireless Charging

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Each battery of the output device is connected to the output port of the MOC system and is charged independently at the same time. Various DC/DC converter topologies are adopted in a MOC system [18][19][20][21]. There are several benefits of MOCs system such as reducing the cost, shortening the total charging time and space for installation due to using only one converter.…”

mentioning

confidence: 99%

“…However, MOC is commonly suffered from cross-regulation problem, in which the variation in voltage or power from one output channel affects the stability of the others. As a result, it requires complex circuits and control techniques to regulate the outputs independently and accurately [20], [22].…”

mentioning

confidence: 99%

Multiple Output Inductive Charger for Electric Vehicles

Phan

Dahidah

et al. 2019

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

Multiple output chargers have widely been adopted in various electronic devices due to their benefit concerning cost, power density, and space for installation. On the contrary, Inductive Power Transfer (IPT) has been applied increasingly in electric vehicles (EV) since it is safer and more convenient as compared to conductive chargers. However, researches on multiple output chargers using IPT system for EV charging applications are rarely presented. This paper proposes a new concept of a multiple output IPT charger, which can charge several output batteries independently and simultaneously by adopting only one full bridge inverter at the primary side combining with multiple transmitters. Two possible IPT-coil structures are analyzed, and the minimum distance between each channel's coils is determined to neglect the cross-coupling between them. Two options are proposed to attain Zero Phase Angle (ZPA) condition for primary inverter of the proposed system. First option is to operate the compensation tanks of every output channel at exact ZPA frequencies. The other option is to let one channel working in inductive region of its input impedance and other channel working in capacitive region. By adopting an appropriate design, the reactive powers of these tanks can be nearly cancelled each other and the phase of inverter current can be nearly in-phase with the input voltage as a result. Two proposed options are compared to give recommendation whether option 1 or 2 should be selected according to various of application's requirements. To simplify control complexity, IPT output current sources topologies are selected, compared and analyzed to construct the proposed multiple output system in both above options. Double-sided LCC and Series-Parallel (SP) topologies are adopted to demonstrate the proposed idea for Option 1 and 2, respectively. In order to verify feasibility and validity of the proposed method, experimental results of two output channels with the total output power of 1.5 kW are provided. Experimental results indicate that the ZPA is achieved for primary inverter with both of two above options even under the different load conditions. Some comparisons between the conventional and the proposed IPT charging structure in terms of cost, reliability and complexity are included in discussion session. Index Terms-Inductive power transfer; multiple output charger; IPT compensation topologies, wireless EV charging.

show abstract

SiC switch‐based isolated DC‐DC converter for simultaneous charging of Li‐ion batteries of different voltage ratings for low‐ and medium‐power electric vehicle battery charging application

B.S

Arunkumar

2023

Circuit Theory & Apps

View full text Add to dashboard Cite

SummaryThe use of electric vehicles (EVs) has gained traction in recent years. With the widespread use of EVs in the future, the waiting time before charging will be high due to the use of slow chargers in developing countries. This work proposes a novel DC‐DC converter based on an isolated single‐ended primary inductor converter (SEPIC) and isolated Ćuk converter to enable simultaneous charging of batteries of low‐ and medium‐power EVs. The proposed converter operates without spikes in input and output currents, even during a sudden source disturbance. It can charge one battery at the output voltage level and simultaneously charge two batteries at half the output voltage. Simulation results for open‐loop and closed‐loop operations are provided to validate the converter operation and the simplicity of control. The proposed converter operation has been experimentally validated using a scaled‐down prototype by charging one 48 V lithium‐ion battery and then simultaneously charging two 24 V lithium‐ion batteries. The converter's response is provided to present the novelty and advantages of the proposed converter. The proposed converter uses fewer switches, diodes, inductors, and capacitors. The size of the system is reduced due to the high switching frequency operation of SiC devices. A low‐side gate driver is sufficient for driving the MOSFET, and the control is simple. The proposed converter offers a new and simple converter to charge multiple low‐ and medium‐power EV batteries of different ratings simultaneously with a low component count.

show abstract

Design and Implementation of a High-Efficiency Multiple Output Charger Based on the Time-Division Multiple Control Technique

Cited by 15 publications

References 23 publications

A Switching Hybrid LCC-S Compensation Topology for Constant Current/Voltage EV Wireless Charging

A Switching Hybrid LCC-S Compensation Topology for Constant Current/Voltage EV Wireless Charging

Multiple Output Inductive Charger for Electric Vehicles

SiC switch‐based isolated DC‐DC converter for simultaneous charging of Li‐ion batteries of different voltage ratings for low‐ and medium‐power electric vehicle battery charging application

Contact Info

Product

Resources

About