LOW ORDER HARMONICS IMPROVEMENT OF A SINGLE GRID CONNECTED INVERTER SYSTEM UNDER PR CONTROL TECHNIQUE

Distributed generation technologies or embedded generation is rapidly becoming a significant and important matter worldwide. It is important that the current harmonics current produced at the output of the inverter do not exceed the standards. In this paper, simulation of grid connected inverter system with PI and PR current controller are done and the results show improvements in the low order harmonics spectrum when using the PR control technique in the inverter system.

[1]  Matthew Armstrong,et al.  The effect of grid operating conditions on the current controller performance of grid connected photovoltaic inverters , 2009, 2009 13th European Conference on Power Electronics and Applications.

[2]  Dehong Xu,et al.  A New Current Feedback PR Control Strategy for Grid-Connected VSI with an LCL Filter , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[3]  P. Chiradeja,et al.  Benefit of Distributed Generation: A Line Loss Reduction Analysis , 2005, 2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific.

[4]  Ping Yang,et al.  Distributed generation system development based on various renewable energy resources , 2011, Proceedings of the 30th Chinese Control Conference.

[5]  G. T. Heydt,et al.  Electric power quality: a tutorial introduction , 1998 .

[6]  Dehong Xu,et al.  An improved control strategy for grid-connected voltage source inverters with a LCL filter , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[8]  Dehong Xu,et al.  An Improved Control Strategy for Grid-Connected Voltage Source Inverters With an LCL Filter , 2006, IEEE Transactions on Power Electronics.

[9]  M. Liserre,et al.  A new control structure for grid-connected LCL PV inverters with zero steady-state error and selective harmonic compensation , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[10]  Jeyraj Selvaraj,et al.  Multilevel Inverter For Grid-Connected PV System Employing Digital PI Controller , 2009, IEEE Transactions on Industrial Electronics.

[11]  Richard G. Hoft,et al.  Generalized Techniques of Harmonic Elimination and Voltage Control in Thyristor Inverters: Part I--Harmonic Elimination , 1973 .

[12]  Li Zhu,et al.  Proportional-resonant current control of single-phase grid-tied PV inverter system , 2010, CICED 2010 Proceedings.