Robust Control of Ultrasonic Power Transfer System Under Parameter Perturbation

Kehan Zhang, Baobao Lan, Fan Dai, Jiaming Feng, Zhaoyong Mao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ultrasonic Power Transfer (UPT) technology has many advantages such as easy concentration of energy, no electromagnetic interference, and penetration of metal media, so it has great application prospects in wireless charging of underwater vehicles. The underwater vehicle during the charging process is affected by the complex marine environment, which will change the relative position, operating frequency and equivalent load of the UPT system, which in turn affects the stability, transmission power and efficiency of the system. Aiming at the above problems, this paper firstly uses the generalized state space averaging method (GSSA) to establish the state space model of the UPT system in the marine environment. Then, the uncertainty model of the system parameters is established on the basis of state space model considering the parameter perturbation of the operating frequency and equivalent load. A robust H controller based on M-Δ feedback control structure is designed. Finally, it is verified by the simulation. When the input current of the system changes or the output disturbance occurs, the robust controller can make the output current track the reference input quickly without overshoot, and has a good suppression effect on the influence of parameter perturbation.

Original languageEnglish
Title of host publicationThe Proceedings of 2022 International Conference on Wireless Power Transfer, ICWPT 2022
EditorsChengbin Ma, Ming Liu, Yiming Zhang, Siqi Li, Lei Zhao, Pengcheng Zhang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages559-570
Number of pages12
ISBN (Print)9789819906307
DOIs
StatePublished - 2023
EventInternational Conference on Wireless Power Transfer, ICWPT 2022 - Chongqing, China
Duration: 2 Dec 20225 Dec 2022

Publication series

NameLecture Notes in Electrical Engineering
Volume1018 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference on Wireless Power Transfer, ICWPT 2022
Country/TerritoryChina
CityChongqing
Period2/12/225/12/22

Keywords

  • Generalized state space averaging method (GSSA)
  • Robust control
  • Ultrasonic power transfer

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