A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System

Utkarsh D. Kavimandan; Veda P. Galigekere; Omer Onar; Burak Ozpineci; Satish M. Mahajan

doi:10.1109/APEC39645.2020.9124590

A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System

Utkarsh D. Kavimandan, Veda P. Galigekere, Omer Onar, Burak Ozpineci, Satish M. Mahajan

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

8 Scopus citations

Abstract

In practice, a dead-time is always provided between the complementary switching instances of the inverter phase-leg devices. At higher operating frequencies, the dead-time issues in wireless power transfer (WPT) systems become critical, especially as the power level increases. In certain operating conditions, the dead-time effect in wireless power transfer system affects the switching characteristics. Consequently, the switching losses in the power semiconductor devices increase and also impact the efficiency of the overall system. In this paper, a simple control scheme is proposed to eliminate the dead-time effect (or voltage polarity reversal) in the WPT inverter. The proposed control scheme monitors the inverter output voltage, and the switching frequency is auto-tuned to eliminate the undesired switching instances in the inverter voltage. The proposed control scheme is validated using the closed-loop simulations in PLECS, and the experimental results on a 5.6 kW WPT prototype are also presented. After eliminating the voltage-polarity-reversal at the inverter output, the inverter losses were reduced by ∼40%, and the overall system losses were reduced by ∼17%.

Original language	English
Title of host publication	APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3172-3179
Number of pages	8
ISBN (Electronic)	9781728148298
DOIs	https://doi.org/10.1109/APEC39645.2020.9124590
State	Published - Mar 2020
Event	35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 - New Orleans, United States Duration: Mar 15 2020 → Mar 19 2020

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2020-March

Conference

Conference	35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
Country/Territory	United States
City	New Orleans
Period	03/15/20 → 03/19/20

Funding

This study is based upon the work supported by the U.S. Department of Energy (DOE) and Vehicle Technologies Office (VTO). The authors would like to thank Mr. Lee Slezak of the U.S. DOE-VTO, Mr. Jason Conley of National Energy Technology Laboratory (NETL), and Dr. David Smith of ORNL for their support and guidance on this work.

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10.1109/APEC39645.2020.9124590

Cite this

Kavimandan, U. D., Galigekere, V. P., Onar, O., Ozpineci, B., & Mahajan, S. M. (2020). A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System. In APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition (pp. 3172-3179). Article 9124590 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2020-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC39645.2020.9124590

Kavimandan, Utkarsh D. ; Galigekere, Veda P. ; Onar, Omer et al. / A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System. APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 3172-3179 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

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abstract = "In practice, a dead-time is always provided between the complementary switching instances of the inverter phase-leg devices. At higher operating frequencies, the dead-time issues in wireless power transfer (WPT) systems become critical, especially as the power level increases. In certain operating conditions, the dead-time effect in wireless power transfer system affects the switching characteristics. Consequently, the switching losses in the power semiconductor devices increase and also impact the efficiency of the overall system. In this paper, a simple control scheme is proposed to eliminate the dead-time effect (or voltage polarity reversal) in the WPT inverter. The proposed control scheme monitors the inverter output voltage, and the switching frequency is auto-tuned to eliminate the undesired switching instances in the inverter voltage. The proposed control scheme is validated using the closed-loop simulations in PLECS, and the experimental results on a 5.6 kW WPT prototype are also presented. After eliminating the voltage-polarity-reversal at the inverter output, the inverter losses were reduced by ∼40%, and the overall system losses were reduced by ∼17%.",

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Kavimandan, UD, Galigekere, VP, Onar, O , Ozpineci, B & Mahajan, SM 2020, A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System. in APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition., 9124590, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2020-March, Institute of Electrical and Electronics Engineers Inc., pp. 3172-3179, 35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020, New Orleans, United States, 03/15/20. https://doi.org/10.1109/APEC39645.2020.9124590

A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System. / Kavimandan, Utkarsh D.; Galigekere, Veda P.; Onar, Omer et al.
APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2020. p. 3172-3179 9124590 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2020-March).

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

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AU - Mahajan, Satish M.

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AB - In practice, a dead-time is always provided between the complementary switching instances of the inverter phase-leg devices. At higher operating frequencies, the dead-time issues in wireless power transfer (WPT) systems become critical, especially as the power level increases. In certain operating conditions, the dead-time effect in wireless power transfer system affects the switching characteristics. Consequently, the switching losses in the power semiconductor devices increase and also impact the efficiency of the overall system. In this paper, a simple control scheme is proposed to eliminate the dead-time effect (or voltage polarity reversal) in the WPT inverter. The proposed control scheme monitors the inverter output voltage, and the switching frequency is auto-tuned to eliminate the undesired switching instances in the inverter voltage. The proposed control scheme is validated using the closed-loop simulations in PLECS, and the experimental results on a 5.6 kW WPT prototype are also presented. After eliminating the voltage-polarity-reversal at the inverter output, the inverter losses were reduced by ∼40%, and the overall system losses were reduced by ∼17%.

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Kavimandan UD, Galigekere VP, Onar O , Ozpineci B, Mahajan SM. A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System. In APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc. 2020. p. 3172-3179. 9124590. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). doi: 10.1109/APEC39645.2020.9124590

A Control Scheme to Mitigate the Dead-Time Effects in a Wireless Power Transfer System

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