An adaptive filter for synchronous extraction of harmonics and distortions

This paper provides an adaptive filter for synchronous detection and extraction of harmonics. The filter can be used as integral part of the control system of a power electronic apparatus (e.g., STATCOM, APF, and UPFC) to generate the desired control signals. Stability and convergence analyses of the adaptive filter are presented based on the dynamical systems theory. Performance of the filter is verified as a means for reference signal generation in a shunt active power filter.

[1]  Shiguo Luo,et al.  An adaptive detecting method for harmonic and reactive currents , 1995, IEEE Trans. Ind. Electron..

[2]  Luis Morán,et al.  Control system for three-phase active power filter which simultaneously compensates power factor and unbalanced loads , 1995, IEEE Trans. Ind. Electron..

[3]  P. Holmes,et al.  Nonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields , 1983, Applied Mathematical Sciences.

[4]  Adly Girgis,et al.  A Quantitative Study of Pitfalls in the FFT , 1980, IEEE Transactions on Aerospace and Electronic Systems.

[5]  Luis Moran,et al.  A three-phase active power filter operating with fixed switching frequency for reactive power and current harmonic compensation , 1995, IEEE Trans. Ind. Electron..

[6]  S. Wiggins.  Introduction to Applied Nonlinear Dynamical Systems and Chaos , 1989 .

[7]  Jose Antenor Pomilio,et al.  Shunt active power filter synthesizing resistive loads , 2002 .

[8]  Kamal Al-Haddad,et al.  A review of active filters for power quality improvement , 1999, IEEE Trans. Ind. Electron..

[9]  Hirofumi Akagi,et al.  Control Strategy of Active Power Filters Using Multiple Voltage-Source PWM Converters , 1986, IEEE Transactions on Industry Applications.

[10]  Hirofumi Akagi,et al.  A new method of harmonic power detection based on the instantaneous active power in three-phase circuits , 1995 .

[11]  Loi Lei Lai,et al.  Real-time frequency and harmonic evaluation using artificial neural networks , 1999 .