Asymptotic Slow-Scale Stability Boundary of PFC AC-DC Power Converters: Theoretical Prediction and Experimental Validation

被引：40

作者：

El Aroudi, Abdelali ^{[1
]}

Orabi, Mohamed ^{[2
]}

Haroun, Reham ^{[1
]}

Martinez-Salamero, Luis ^{[1
]}

机构：

[1] Univ Rovira & Virgili, Escola Tecn Super Engn, Dept Engn Elect Elect & Automat, Tarragona 43007, Spain

[2] S Valley Univ, Aswan Fac Engn, Aswan Power Elect Applicat Res Ctr, Aswan 81542, Egypt

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2011年 / 58卷 / 08期

关键词：

AC-DC boost; bifurcations; dynamic phasor; modeling; period doubling; power factor correction (PFC); subharmonics; two stage; DYNAMICS;

D O I：

10.1109/TIE.2010.2090832

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A unified approach for the stability analysis of both preregulator and two-stage power factor correction (PFC) ac-dc converters is presented. Practical and accurate analytical expressions for the stability boundary are obtained by studying the dynamics of the first harmonic component. The resulting model of this dynamics has an equilibrium point at the origin of the harmonic state space. In the case of a stable equilibrium point, the first-order component converges to zero, and the system oscillates at twice the line frequency. If the equilibrium point loses stability, another equilibrium point depending on high-order harmonics will be reached while the real system will exhibit a period-doubling phenomenon leading to subharmonic oscillations. It is demonstrated that the stability boundaries depend on the power level. Numerical simulations and experimental results in both a preregulator and a complete two-stage PFC converter validate the approach.

引用

页码：3448 / 3460

页数：13

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