Advantages and Tuning of Zero Voltage Switching in a Wireless Power Transfer System

Francesca Grazian; Peter van Duijsen; Thiago B. Soeiro; Pavol Bauer

doi:10.1109/WoW45936.2019.9030626

Advantages and Tuning of Zero Voltage Switching in a Wireless Power Transfer System

Francesca Grazian
, Peter van Duijsen
, Thiago B. Soeiro
, Pavol Bauer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

14 Citations (Scopus)

Abstract

In charging applications, wireless power transfer (WPT) is mostly used in the form of inductive power transfer with magnetic resonant coupling. Therefore, both the transmitter and the receiver coils are combined with capacitors, such that only active power is transferred. To evaluate the operation of the WPT charging system, its equivalent circuit can be analyzed in the frequency domain. However, this is limiting since the H-bridge inverter operation is not intrinsically considered. As an example, the operating points of both zero current switching (ZCS) and zero voltage switching (ZVS) operations might be still analyzed, but it is not possible to assess their performance in terms of efficiency. In this paper, the advantage of ZVS over the ZCS is evaluated in terms of the efficiency and the delivered output power. To enable the full potential of ZVS, this is tuned considering the switch capacitance and the dead time.

Original language	English
Title of host publication	2019 IEEE PELS Workshop on Emerging Technologies
Subtitle of host publication	Wireless Power Transfer, WoW 2019
Publisher	Institute of Electrical and Electronics Engineers
Pages	367-372
Number of pages	6
ISBN (Electronic)	978-1-5386-7514-4
DOIs	https://doi.org/10.1109/WoW45936.2019.9030626
Publication status	Published - 12 Mar 2020
Externally published	Yes
Event	2019 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2019 - London, United Kingdom Duration: 17 Jun 2019 → 21 Jun 2019

Conference

Conference	2019 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2019
Country/Territory	United Kingdom
City	London
Period	17/06/19 → 21/06/19

Keywords

Efficiency
Inverter control
wireless power transfer (WPT)
zero current switching (ZCS)
zero voltage switching (ZVS)

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10.1109/WoW45936.2019.9030626

Cite this

@inproceedings{f6e3d7e35fe944678696ad1d22cf5d9a,

title = "Advantages and Tuning of Zero Voltage Switching in a Wireless Power Transfer System",

abstract = "In charging applications, wireless power transfer (WPT) is mostly used in the form of inductive power transfer with magnetic resonant coupling. Therefore, both the transmitter and the receiver coils are combined with capacitors, such that only active power is transferred. To evaluate the operation of the WPT charging system, its equivalent circuit can be analyzed in the frequency domain. However, this is limiting since the H-bridge inverter operation is not intrinsically considered. As an example, the operating points of both zero current switching (ZCS) and zero voltage switching (ZVS) operations might be still analyzed, but it is not possible to assess their performance in terms of efficiency. In this paper, the advantage of ZVS over the ZCS is evaluated in terms of the efficiency and the delivered output power. To enable the full potential of ZVS, this is tuned considering the switch capacitance and the dead time.",

keywords = "Efficiency, Inverter control, wireless power transfer (WPT), zero current switching (ZCS), zero voltage switching (ZVS)",

author = "Francesca Grazian and \{van Duijsen\}, Peter and Soeiro, \{Thiago B.\} and Pavol Bauer",

year = "2020",

month = mar,

day = "12",

doi = "10.1109/WoW45936.2019.9030626",

language = "English",

pages = "367--372",

booktitle = "2019 IEEE PELS Workshop on Emerging Technologies",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "2019 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2019 ; Conference date: 17-06-2019 Through 21-06-2019",

}

Grazian, F, van Duijsen, P, Soeiro, TB & Bauer, P 2020, Advantages and Tuning of Zero Voltage Switching in a Wireless Power Transfer System. in 2019 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2019., 9030626, Institute of Electrical and Electronics Engineers, pp. 367-372, 2019 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2019, London, United Kingdom, 17/06/19. https://doi.org/10.1109/WoW45936.2019.9030626

Advantages and Tuning of Zero Voltage Switching in a Wireless Power Transfer System. / Grazian, Francesca; van Duijsen, Peter; Soeiro, Thiago B. et al.
2019 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2019. Institute of Electrical and Electronics Engineers, 2020. p. 367-372 9030626.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Advantages and Tuning of Zero Voltage Switching in a Wireless Power Transfer System

AU - Grazian, Francesca

AU - van Duijsen, Peter

AU - Soeiro, Thiago B.

AU - Bauer, Pavol

PY - 2020/3/12

Y1 - 2020/3/12

N2 - In charging applications, wireless power transfer (WPT) is mostly used in the form of inductive power transfer with magnetic resonant coupling. Therefore, both the transmitter and the receiver coils are combined with capacitors, such that only active power is transferred. To evaluate the operation of the WPT charging system, its equivalent circuit can be analyzed in the frequency domain. However, this is limiting since the H-bridge inverter operation is not intrinsically considered. As an example, the operating points of both zero current switching (ZCS) and zero voltage switching (ZVS) operations might be still analyzed, but it is not possible to assess their performance in terms of efficiency. In this paper, the advantage of ZVS over the ZCS is evaluated in terms of the efficiency and the delivered output power. To enable the full potential of ZVS, this is tuned considering the switch capacitance and the dead time.

AB - In charging applications, wireless power transfer (WPT) is mostly used in the form of inductive power transfer with magnetic resonant coupling. Therefore, both the transmitter and the receiver coils are combined with capacitors, such that only active power is transferred. To evaluate the operation of the WPT charging system, its equivalent circuit can be analyzed in the frequency domain. However, this is limiting since the H-bridge inverter operation is not intrinsically considered. As an example, the operating points of both zero current switching (ZCS) and zero voltage switching (ZVS) operations might be still analyzed, but it is not possible to assess their performance in terms of efficiency. In this paper, the advantage of ZVS over the ZCS is evaluated in terms of the efficiency and the delivered output power. To enable the full potential of ZVS, this is tuned considering the switch capacitance and the dead time.

KW - Efficiency

KW - Inverter control

KW - wireless power transfer (WPT)

KW - zero current switching (ZCS)

KW - zero voltage switching (ZVS)

UR - https://www.scopus.com/pages/publications/85084340723

U2 - 10.1109/WoW45936.2019.9030626

DO - 10.1109/WoW45936.2019.9030626

M3 - Conference contribution

AN - SCOPUS:85084340723

SP - 367

EP - 372

BT - 2019 IEEE PELS Workshop on Emerging Technologies

PB - Institute of Electrical and Electronics Engineers

T2 - 2019 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2019

Y2 - 17 June 2019 through 21 June 2019

ER -

Advantages and Tuning of Zero Voltage Switching in a Wireless Power Transfer System

Abstract

Conference

Keywords

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