Title :
Reduction of voltage harmonics for parallel-operated inverters
Author :
Zhong, Qing-Chang ; Blaabjerg, Frede ; Guerrero, Josep M. ; Hornik, Tomas
Author_Institution :
Dept. of Aeronaut. & Automotive Eng., Loughborough Univ., Loughborough, UK
Abstract :
The inherent limitations of the conventional droop control scheme have recently been revealed and a robust droop controller to achieve exact proportional load sharing has been proposed. This paper continues the work with a strategy to improve the voltage quality so that the total harmonic distortion of the output voltage can be maintained small even when nonlinear loads are connected. Experimental results are provided to verify the analysis and design.
Keywords :
harmonic distortion; invertors; robust control; droop control scheme; nonlinear loads; parallel-operated inverters; proportional load sharing; robust droop controller; total harmonic distortion; voltage harmonics reduction; Accuracy; Harmonic analysis; Impedance; Inverters; Reactive power; Robustness; Voltage control;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4577-0542-7
DOI :
10.1109/ECCE.2011.6063807
