Abstract
Anti-islanding protection plays a major role in grid-connected inverters which are based either on solar PV or other renewable energy resources when they are connected to the utility. In this study, six grid-connected string inverters were characterized based on the Indian standard IS 16169:2019. This paper presents the real-time simulation results of grid loss protection in both single- and three-phase solar grid-connected inverters when connected to the utility. The study shows that the three-phase string inverters have lesser disconnection times in comparison with the single phase. With the increase in power capacity of string inverters, it is observed that irrespective of single or three phases, the disconnection time decreases.
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Acknowledgements
The author would like to acknowledge the Energy efficiency and renewable energy divisions (ERED) for their support and the project was financed by CPRI, Ministry of Power, Govt. of India.
Funding
The author declares that this research work was performed in the Energy Efficiency and Renewable Energy Division of Central Power Research Institute, Bengaluru, Karnataka, India, and was in part supported by a grant (No. 1830) from the Ministry of Power, Govt. of India.
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Kumar, K.J. Comparison of Anti-islanding Protection in Single- and Three-Phase Solar Grid-Connected String Inverters. J. Inst. Eng. India Ser. B 103, 225–235 (2022). https://doi.org/10.1007/s40031-021-00635-0
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DOI: https://doi.org/10.1007/s40031-021-00635-0