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Author:

Guo, Bing (Guo, Bing.) | Zhang, Yiming (Zhang, Yiming.) | Zhang, Jialin (Zhang, Jialin.) | Gao, Junxia (Gao, Junxia.)

Indexed by:

EI Scopus SCIE

Abstract:

A digital direct phase-shift control (DDPSC) method based on the phase-shifted full-bridge LLC (PSFB-LLC) converter is presented. This work combines DDPSC with the conventional linear control to obtain a hybrid control strategy that has the advantages of linear control and DDPSC control. The strategy is easy to realize and has good dynamic responses. The PSFB-LLC circuit structure is simple and works in the fixed frequency mode, which is beneficial to magnetic component design; it can realize the ZVS of the switch and the ZCS of the rectifier diode in a wide load range. In this work, the PSFB-LLC converter resonator is analyzed in detail, and the concrete realization scheme of the hybrid control strategy is provided by analyzing the state-plane trajectory and the time-domain model. Finally, a 3 kW prototype is developed, and the feasibility and effectiveness of the DDPSC controller and the hybrid strategy are verified by experimental results.

Keyword:

State-plane analysis LLC Dynamic performance Soft-switching Full-bridge converter

Author Community:

  • [ 1 ] [Guo, Bing]Beijing Univ Technol, Fac Informat Technol, Beijing, Peoples R China
  • [ 2 ] [Zhang, Yiming]Beijing Univ Technol, Fac Informat Technol, Beijing, Peoples R China
  • [ 3 ] [Zhang, Jialin]Beijing Univ Technol, Fac Informat Technol, Beijing, Peoples R China
  • [ 4 ] [Gao, Junxia]Beijing Univ Technol, Fac Informat Technol, Beijing, Peoples R China

Reprint Author's Address:

  • [Guo, Bing]Beijing Univ Technol, Fac Informat Technol, Beijing, Peoples R China

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Source :

JOURNAL OF POWER ELECTRONICS

ISSN: 1598-2092

Year: 2018

Issue: 3

Volume: 18

Page: 802-816

1 . 4 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:156

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count: 11

SCOPUS Cited Count: 16

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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