Interaction between grid-connected PV systems and LED lamps: Directions for further research on harmonics and supraharmonics

• Published in: 2016 17th International Conference on Harmonics and Quality of Power (ICHQP) pp. 193 - 197
• Main Authors: Busatto, Tatiano, Abid, Fahim, Larsson, Anders, Bollen, Math H. J., Singh, Gaurav
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.10.2016
• Series: International Conference on Harmonics and Quality of Power
• Subjects: Distortion; Electric Power Engineering; electric power systems; Elkraftteknik; Harmonic analysis; harmonics; Inverters; LED lamps; Power quality; Power system harmonics; solar power; supraharmonics; Switches
• ISBN: 1509037926; 9781509037926
• ISSN: 2164-0610
• DOI: 10.1109/ICHQP.2016.7783479

This paper discusses different approaches to investigate the interaction through harmonics, interharmonics, supraharmonics, and light flicker, between photovoltaic (PV) inverters and LED lamps in low-voltage installations. Single grid-connected power generators and electronic loads like LED lamps can be easily characterized in terms of harmonics in a given range of frequency. This subject is relatively well understood, and specific standards for measuring and restricting emissions are already established to ensure a low probability of interference. However, when connected together, source and load exhibit behavior that requires further study and understanding. This work presents a discussion serving as a guide for future work on analysis of losses and other impacts of the disturbances regarding this specific load and source interaction. The following are taken into account: the nonlinearity of LED loads and PV converters; the technologies and methods used in control; and the changes in power flow caused by load and power production variations.