A comprehensive analysis and design of a single phase active power filter with unified constant-frequency integration control

In this paper, an analysis and design for a single-phase active power filter (APF) with unified constant-frequency integration (UCI) control method is presented. The proposed control method eliminates the need of sensing the load current, a nontrivial task of calculating the harmonics and reactive current components, as well as the use of multipliers, as reported by many previous reported control methods. In addition, the switching loss is reduced by employing unipolar operation mode. The design methodology including electromagnetic interference (EMI) filter is also discussed in detail. The theoretical analysis is verified by experiments.

[1]  David A. Torrey,et al.  Single-phase active power filters for multiple nonlinear loads , 1995 .

[2]  I. Barbi,et al.  Power factor correction of non-linear loads employing a single phase active power filter: control strategy, design methodology and experimentation , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.

[3]  K.M. Smedley,et al.  One-cycle control of switching converters , 1991, PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference.

[4]  J.W. Dixon,et al.  A simple frequency-independent method for calculating the reactive and harmonic current in a nonlinear load , 1996, IEEE Trans. Ind. Electron..

[5]  K. M. Smedley,et al.  Unified constant-frequency integration control of active power filters , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[6]  D.A. Torrey,et al.  A single-phase active power filter for multiple nonlinear loads , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.