On the effects of interharmonic distortion on grid connected three-phase PV inverters

The effects of interharmonic distortion on Photo Voltaic (PV) inverters whose control is based on the use of PLL systems are analyzed. After some brief recalls on typical PV inverter connection schemes and control strategies, the design of the PLL and its sensitivity to the presence of interharmonic distortion is analyzed. Finally, a case-study on a very simple system is discussed with reference to the Light Flicker phenomenon.

[1]  Stephen J. Finney,et al.  Three-phase phase-lock loop for distorted utilities , 2007 .

[2]  Marcelo A. Pérez,et al.  A Robust Phase-Locked Loop Algorithm to Synchronize Static-Power Converters With Polluted AC Systems , 2008, IEEE Transactions on Industrial Electronics.

[3]  P. Marino,et al.  A new high performance shunt active filter based on digital control , 2000, 2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077).

[4]  Alan V. Oppenheim,et al.  Discrete-Time Signal Pro-cessing , 1989 .

[5]  P. Marino,et al.  Interleaved dc-dc Converters for Photovoltaic Modules , 2007, 2007 International Conference on Clean Electrical Power.

[6]  Simone Buso,et al.  A dead-beat adaptive hysteresis current control , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[7]  Jj Meeuwsen,et al.  Influences of a "hybrid grid" on the network's voltage quality and supply reliability , 2007 .

[8]  K. Nam,et al.  Instantaneous phase-angle estimation algorithm under unbalanced voltage-sag conditions , 2000 .

[9]  G. Joos,et al.  A Nonlinear Adaptive Synchronization Techniquefor Grid-Connected Distributed Energy Sources , 2008, IEEE Transactions on Power Electronics.

[10]  G. Joos,et al.  A Fast and Accurate Synchronization Technique for Extraction of Symmetrical Components , 2009, IEEE Transactions on Power Electronics.

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

[12]  A. Testa,et al.  On the Use of the Flickermeter to Limit Low-Frequency Interharmonic Voltages , 2008, IEEE Transactions on Power Delivery.

[13]  P. Marino,et al.  A new robust phase tracking system for asymmetrical and distorted three phase networks , 2004, 2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951).

[14]  A. Testa,et al.  On the effects of interharmonic distortion on static converters controlled by means of PLL systems , 2010, Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010.