DC link voltage control during sudden load changes in AC microgrids

ISSA, Walid, SHARKH, S. M., ALBADWAWI, R., ABUSARA, M. and MALLICK, T. K. (2017). DC link voltage control during sudden load changes in AC microgrids. In: Proceedings 2017 IEEE International Symposium on Industrial Electronics (ISIE). IEEE, 76-81.

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Official URL: http://ieeexplore.ieee.org/document/8001226/
Link to published version:: 10.1109/ISIE.2017.8001226

Abstract

Parallel inverters in AC microgrids can achieve accurate power sharing using droop control. However, different grid line impedances will result in different transient power and thus different energy being delivered or absorbed by the inverters during sudden load changes. This might lead the DC link voltage to rise beyond the trip limit causing the inverter to shut down, which reduces the reliability of the whole microgrid. This paper investigates the effect of the mismatch in line impedances on the stability of the DC link voltage during a sudden load changes and proposes a scheme to control the DC link voltage during disturbances. Simulation and experimental results are presented to verify the efficacy of the proposed controller.

Item Type: Book Section
Additional Information: Paper presented at the 2017 IEEE 26th International Symposium on Industrial Electronics (ISIE), Edinburgh, UK, 19-21 June 2017. Electronic ISSN: 2163-5145. INSPEC Accession Number: 17096795
Uncontrolled Keywords: distributed power generation;invertors;load regulation;power distribution reliability;voltage control;AC microgrids;DC link voltage control;DC link voltage stability;droop control;grid line impedances;parallel inverters;power sharing;sudden load changes;transient power;DC link voltage;droop control;inverters
Departments: Arts, Computing, Engineering and Sciences > Engineering and Mathematics
Identification Number: 10.1109/ISIE.2017.8001226
Depositing User: Walid Issa
Date Deposited: 26 Jan 2018 16:36
Last Modified: 27 Jan 2018 11:29
URI: http://shura.shu.ac.uk/id/eprint/16924

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