Design and control of inductive power transfer system for electric vehicles considering wide variation of output voltage and coupling coefficient

Kim, Minkook; Joo, Dong-Myoung; Lee, Byoung-Kuk; Woo, Dong-Gyun

doi:10.1109/apec.2017.7931222

Cited by 29 publications

(24 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, 1 , 2 and 3 can be integrated into 1 , 2 and 3 to become a single serial capacitor for each phase. These serial capacitors are determined by (20). In Section V, experimental results are presented to compare between including and not including these compensated capacitors.…”

Section: Illustrative Design Example Of Three-phase Wdc Systemmentioning

confidence: 99%

“…In (21), and ( = 1,3 ̅̅̅̅ ) can be found in (12) and (15) respectivelly. Combining (14), (20), (22) and (23), the equation of the resonant frequency can be determined as (24), in which is regardless of both load condition ( ) and mutual inductances between transmitters and receiver ( 1 , 2 and 3 ).…”

Section: Illustrative Design Example Of Three-phase Wdc Systemmentioning

confidence: 99%

“…Constant power is only achieved if the ratio of receiver's length over transmitter's length is 1.5, which may not be suitable in real practical applications where receivers with different dimensions are required. Other methods are proposed in [19][20] by adjusting the transmitter current under misalignment. Transmitter current is controlled by a primary inverter and/or a DC/DC converter to increase its amplitude when coupling between two sides is reduced.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A High-Power Multiphase Wireless Dynamic Charging System With Low Output Power Pulsation for Electric Vehicles

Dahidah

Pickert

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

Wireless Dynamic Charging (WDC) of Electric Vehicles (EV) is a new initiative aimed to increase EV uptake. However, pulsating output power along the driving direction is a major problem with this technology. Moreover, in order to deliver enough driving power for EVs, WDC systems must operate at high power. This paper proposes a WDC system that has the capability of providing a low pulsating and high output power to EVs. The proposed WDC utilizes multiple primary windings that guarantees a homogeneous mutual magnetic flux for the receiver along the driving direction. This results in a constant induced voltage across the receiver and hence constant output power to charge the EV battery. High output power is realized by using multiple transmitter windings which have been arranged in a novel winding method. The structure layout of the proposed WDC, including ferrite cores, windings and resonant tanks is presented. Furthermore, a theoretical analysis is conducted to determine conditions of each winding's current phase and amplitude for achieving constant output power. The crossing mutual inductances between the different transmitter's phases are compensated by adding small capacitors in series with each transmitter winding. An optimization analysis using Maxwell 3D simulation for both, transmitter and receiver is carried out to achieve the highest coupling factor by using minimum ferrite material. The effectiveness of the proposed system is analytically demonstrated and experimentally verified using a 3-kW laboratory prototype. Finally, the performance of the proposed method is compared with similar systems presented in the literature. The comparison shows that the proposed system has the advantages of using simple control, it also eliminates communications between the primary and secondary side and delivers a normalized power of 2.25 which is 125% higher compared to conventional single-phase systems.

show abstract

Section: Illustrative Design Example Of Three-phase Wdc Systemmentioning

confidence: 99%

Section: Illustrative Design Example Of Three-phase Wdc Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A High-Power Multiphase Wireless Dynamic Charging System With Low Output Power Pulsation for Electric Vehicles

Dahidah

Pickert

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

show abstract

“…Therefore, if the load impedance is always kept equal to the optimum load value as in [16], the transfer efficiency reaches the maximum value over a wide frequency range. Furthermore, the frequency can be controlled around 85kHz to improve inverter efficiency, such as zero phase angle tracking control as in [24]. A dynamic charging system prototype with a power of 1.5 kW is constructed.…”

Section: Introductionmentioning

confidence: 99%

Wireless power transfer system design for electric vehicle dynamic charging application

Diệp

Trung

Minh

2020

IJPEDS

View full text Add to dashboard Cite

This paper proposes and demonstrates a wireless power transfer system design for electric vehicle dynamic charging applications. The dynamic wireless charging (DWC) lane is designed for modularly. Each module has three shorttrack transmitter coils that are placed closely together and connected to a single inverter to reduce the number of inverters. The magnetic coupler design is analyzed and optimized by finite element analysis (FEA) to reduce the output power variation during dynamic charging. The LCC compensation circuit is designed according to the optimal load value to obtain maximum efficiency. The SIC devices are used to improve the efficiency of the high-frequency resonant inverter. A 1.5 kW dynamic charging system prototype is constructed. Experimental results show that the output power variation of 9.5% and the average efficiency of 89.5% are obtained in the moving condition.

show abstract

“…High efficiency and steady power transfer is the first and uppermost objectives for all IPT power applications. There are many studies to solve these problems, such as novel compensation topologies and parameters optimization [7], [8], magnetic couplers design for larger coupling coefficient [9]- [11], control techniques for obtaining desired output characteristics [12] and so on. Among these fields, compensation topology is essential for its determination of resonant frequency, power factor, output characteristics to achieve higher system efficiency, power density, and reliability.…”

Section: Introductionmentioning

confidence: 99%

An LCC-SP Compensated Inductive Power Transfer System and Design Considerations for Enhancing Misalignment Tolerance

Zhang

Cui

et al. 2020

IEEE Access

View full text Add to dashboard Cite

This paper proposes a novel LCC-SP compensation topology for inductive power transfer (IPT) system and its tuning methods to enhance misalignment tolerance. The impedance condition and the constant current output characteristic of the newly proposed topology are analyzed, followed by a detailed derivation of compensation parameters based on the discussion about resonant tank. The realization of zero voltage switching (ZVS) and reactive power demand are discussed by theoretical deduction and numerical simulation. Then, the parameters detuning method to enhance misalignment tolerance is presented and it is found that a stable output current is maintained over a wide misalignment. Compared to traditional compensation topologies, the newly proposed compensation topology provides the advantages of easy achievement of ZVS, high design freedom and high misalignment tolerance. Finally, the IPT prototype with the LCC-SP compensation network is built and tested. The experimental results match well with the calculations, validating the correctness of theoretical analysis.

show abstract

Design and control of inductive power transfer system for electric vehicles considering wide variation of output voltage and coupling coefficient

Cited by 29 publications

References 15 publications

A High-Power Multiphase Wireless Dynamic Charging System With Low Output Power Pulsation for Electric Vehicles

A High-Power Multiphase Wireless Dynamic Charging System With Low Output Power Pulsation for Electric Vehicles

Wireless power transfer system design for electric vehicle dynamic charging application

An LCC-SP Compensated Inductive Power Transfer System and Design Considerations for Enhancing Misalignment Tolerance

Contact Info

Product

Resources

About