This paper considers a single-phase grid-connected converter in the presence of non-linear loads. A local voltage support strategy is proposed to compensate the harmonics caused by the loads. This is an added feature implemented in parallel with a conventional current control method, and distinctively, it does not need measurements of the grid or load current. The converter output current consists of two components: a part at the fundamental frequency for power injection, and a part to compensate the harmonics introduced by the non-linear loads. As a result, the grid current harmonic distortion is minimized and the local voltage quality is enhanced. Simulation and experiments validate the effectiveness of the proposed voltage support strategy.
|Titel||8th IEEE International Symposium on Power Electronics for Distributed Generation, 17-20 April 2017, Florianopolis, Brazil|
|Plaats van productie||Piscataway|
|Uitgeverij||Institute of Electrical and Electronics Engineers|
|ISBN van elektronische versie||978-1-5090-5339-1|
|ISBN van geprinte versie||978-1-5090-5340-7|
|Status||Gepubliceerd - 11 jul 2017|
Zhang, Y., Hendrix, M. A. M., Roes, M. G. L., & Duarte, J. L. (2017). Grid-connected converters with voltage support using only local measurements. In 8th IEEE International Symposium on Power Electronics for Distributed Generation, 17-20 April 2017, Florianopolis, Brazil (blz. 1-8).  Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/PEDG.2017.7972445