Stability analysis of two-stage PFC power supplies

Octavian Dranga; Grace Chu; Chi Kong Tse; Siu Chung Wong

doi:10.1109/PESC.2006.1711832

Stability analysis of two-stage PFC power supplies

Octavian Dranga, Grace Chu, Chi Kong Tse, Siu Chung Wong

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

11 Citations (Scopus)

Abstract

Power-factor-correction (PFC) power supplies are required to provide high input power factor and tight output voltage regulation. The usual configuration takes a two-stage cascade structure, consisting of a PFC preregulator and a dc/dc converter. Previous studies of the dynamical behaviour mainly focused on the boost PFC preregulator, assuming that it is being terminated by a resistive load. However, in practice, as the PFC preregulator is terminated by a dc/dc converter whose characteristics differ from resistive load's, the assumption of resistive load termination gives rather inaccurate information about the stability of the system. In this paper we study the complete two-stage PFC power supply and show that the interaction between the PFC stage and the dc/dc converter stage plays an important role in determining the stability of the system.

Original language	English
Title of host publication	37th IEEE Power Electronics Specialists Conference 2006, PESC'06
DOIs	https://doi.org/10.1109/PESC.2006.1711832
Publication status	Published - 1 Dec 2006
Event	37th IEEE Power Electronics Specialists Conference 2006, PESC'06 - Jeju, Korea, Republic of Duration: 18 Jun 2006 → 22 Jun 2006

Conference

Conference	37th IEEE Power Electronics Specialists Conference 2006, PESC'06
Country/Territory	Korea, Republic of
City	Jeju
Period	18/06/06 → 22/06/06

ASJC Scopus subject areas

Electrical and Electronic Engineering

More information

10.1109/PESC.2006.1711832

http://hdl.handle.net/10397/779

Cite this

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title = "Stability analysis of two-stage PFC power supplies",

abstract = "Power-factor-correction (PFC) power supplies are required to provide high input power factor and tight output voltage regulation. The usual configuration takes a two-stage cascade structure, consisting of a PFC preregulator and a dc/dc converter. Previous studies of the dynamical behaviour mainly focused on the boost PFC preregulator, assuming that it is being terminated by a resistive load. However, in practice, as the PFC preregulator is terminated by a dc/dc converter whose characteristics differ from resistive load's, the assumption of resistive load termination gives rather inaccurate information about the stability of the system. In this paper we study the complete two-stage PFC power supply and show that the interaction between the PFC stage and the dc/dc converter stage plays an important role in determining the stability of the system.",

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AU - Chu, Grace

AU - Tse, Chi Kong

AU - Wong, Siu Chung

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N2 - Power-factor-correction (PFC) power supplies are required to provide high input power factor and tight output voltage regulation. The usual configuration takes a two-stage cascade structure, consisting of a PFC preregulator and a dc/dc converter. Previous studies of the dynamical behaviour mainly focused on the boost PFC preregulator, assuming that it is being terminated by a resistive load. However, in practice, as the PFC preregulator is terminated by a dc/dc converter whose characteristics differ from resistive load's, the assumption of resistive load termination gives rather inaccurate information about the stability of the system. In this paper we study the complete two-stage PFC power supply and show that the interaction between the PFC stage and the dc/dc converter stage plays an important role in determining the stability of the system.

AB - Power-factor-correction (PFC) power supplies are required to provide high input power factor and tight output voltage regulation. The usual configuration takes a two-stage cascade structure, consisting of a PFC preregulator and a dc/dc converter. Previous studies of the dynamical behaviour mainly focused on the boost PFC preregulator, assuming that it is being terminated by a resistive load. However, in practice, as the PFC preregulator is terminated by a dc/dc converter whose characteristics differ from resistive load's, the assumption of resistive load termination gives rather inaccurate information about the stability of the system. In this paper we study the complete two-stage PFC power supply and show that the interaction between the PFC stage and the dc/dc converter stage plays an important role in determining the stability of the system.

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Stability analysis of two-stage PFC power supplies

Abstract

Conference

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