Abstract
Capacitive power transfer has received a lot of attention as one of the new wireless power transfer technologies due to the flexibility of the coupling structure, low standing losses, and low Electromagnetic Interference. However, the ability to deliver power degrades significantly with load variations and coupling misalignment. This degradation represents a serious issue for the emerging technology. In this paper, a switch-controlled capacitor (SCC) and a buck-boost DC-DC converter have been added on the transmitter side and the receiving side of the conventional system, respectively. The SCC provides a mean of compensation for the coupling variations while a variable duty cycle DC-DC converter is employed to mitigate the load variation effect. A 26 W system is modeled and simulated, utilizing actual component models for verification. Compared to a typical system, the proposed system could achieve constant output power against variations of ±75% in the coupling interface value and a wide range of load variations from 5 Ω to 1 kΩ.
Original language | English (US) |
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Title of host publication | 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9798350337372 |
DOIs | |
State | Published - 2023 |
Event | 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 - San Diego, United States Duration: Jun 4 2023 → Jun 8 2023 |
Publication series
Name | 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 - Proceedings |
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Conference
Conference | 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 |
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Country/Territory | United States |
City | San Diego |
Period | 06/4/23 → 06/8/23 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
Keywords
- capacitive power transfer (CPT)
- switch-controlled capacitor
- wireless power transfer (WPT)
ASJC Scopus subject areas
- Computer Networks and Communications
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
- Control and Optimization
- Instrumentation