Characteristics of parallel-module high power-factor AC-to-DC converter system with current-balancing controllers

Teruhiko Kohama, Tamotsu Ninomiya, Masahito Shoyama

Research output: Contribution to journalArticle

Abstract

Characteristics of parallel-module high power-factor AC-to-DC converter systems using current-balancing controllers are discussed. The current imbalance occurs when using the parallel connection of coverter modules. To solve this problem a current-balancing controller is utilized, and its effectiveness is confirmed by experiment. Two types of current-balancing controllers. i.e., Voltage reference control method and Current reference control method, are compared. Stability of the current-balancing control loop in the PFC converter system is investigated by using a small-signal model. As a result, the Current reference control method is stabler and has a faster transient response when compared with the Voltage reference control method.

Original languageEnglish
Pages (from-to)203-209
Number of pages7
JournalResearch Reports on Information Science and Electrical Engineering of Kyushu University
Volume3
Issue number2
Publication statusPublished - 1998

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Controllers
Electric potential
Transient analysis
Experiments

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Electrical and Electronic Engineering

Cite this

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abstract = "Characteristics of parallel-module high power-factor AC-to-DC converter systems using current-balancing controllers are discussed. The current imbalance occurs when using the parallel connection of coverter modules. To solve this problem a current-balancing controller is utilized, and its effectiveness is confirmed by experiment. Two types of current-balancing controllers. i.e., Voltage reference control method and Current reference control method, are compared. Stability of the current-balancing control loop in the PFC converter system is investigated by using a small-signal model. As a result, the Current reference control method is stabler and has a faster transient response when compared with the Voltage reference control method.",
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AB - Characteristics of parallel-module high power-factor AC-to-DC converter systems using current-balancing controllers are discussed. The current imbalance occurs when using the parallel connection of coverter modules. To solve this problem a current-balancing controller is utilized, and its effectiveness is confirmed by experiment. Two types of current-balancing controllers. i.e., Voltage reference control method and Current reference control method, are compared. Stability of the current-balancing control loop in the PFC converter system is investigated by using a small-signal model. As a result, the Current reference control method is stabler and has a faster transient response when compared with the Voltage reference control method.

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