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Dynamic Improvement of Series-Series Compensated Wireless Power Transfer Systems Using Discrete Sliding Mode Control

Yun Yang*, Wenxing Zhong, Sitthisak Kiratipongvoot, Siew-Chong Tan, Shu Yuen Ron Hui

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

This paper presents a discrete sliding mode control (DSMC) scheme for a series-series compensated wireless power transfer (WPT) system to achieve fast maximum energy efficiency (MEE) tracking and output voltage regulation. The power transmitter of the adopted WPT system comprises a dc/ac converter, which incorporates the hill-climbing-search-based phase angle control in achieving minimum input current injection from its dc source, thereby attaining minimum input power operation. The power receiver comprises a buck-boost converter that emulates an optimal load value, following the MEE point determined by the DSMC scheme. With this WPT system, no direct communication means is required between the transmitter and the receiver. Therefore, the implementation cost of this system is potentially lower and annoying communication delays, which deteriorate control performance, are absent. Both the simulation and experiment results show that this WPT system displays better dynamic regulation of the output voltage during MEE tracking when it is controlled by DSMC, as compared to that controlled by the conventional discrete proportional-integral (PI) control. Such an improvement prevents the load from sustaining undesirable overshoot/undershoot during transient states. © 1986-2012 IEEE.
Original languageEnglish
Pages (from-to)6351-6360
JournalIEEE Transactions on Power Electronics
Volume33
Issue number7
DOIs
Publication statusPublished - 1 Jul 2018
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by Hong Kong Research Grant Council under theme-based Research Project T23-701/14-N.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Research Keywords

  • Discrete sliding mode control (DSMC)
  • dynamic performance
  • hill-climbing-search-based phase angle control
  • maximum energy efficiency (MEE)
  • series-series compensated wireless power transfer (WPT) system

RGC Funding Information

  • RGC-funded

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