Systematic Design of Virtual Component Method for Inverter-Based Microgrids
Name
Huang2017ve.pdf
Description
Accepted version
Size
1.37 MB
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Unknown
Checksum (MD5)
11371ef6bd429a6e26c4128a535cbacd
Author(s)
Huang, Po-Hsu
Vorobev, Petr
Hosani, Mohamed Al
Kirtley Jr, James L
Turitsyn, Konstantin
Date Issued
July 2017
Publisher
IEEE
Citation
Huang, Po-Hsu, Vorobev, Petr, Hosani, Mohamed Al, Kirtley, James L. and Turitsyn, Konstantin. 2017. "Systematic Design of Virtual Component Method for Inverter-Based Microgrids."
Version
Author's final manuscript
Abstract
© 2017 IEEE. Control design of inverter-based microgrids plays a significant role in affecting dynamic performance of the system. Conventional microgrid droop control suffers from instability due to low X/R ratios and unique network characteristics as compared to large power systems. While many approaches such as virtual framework methods, virtual impedance methods, or synchronverters have been proposed and proven effective, an intuitive and fundamental insight into physical origins of instability has not yet been sufficiently disclosed. In this paper, a systematic approach for enhancing the stability of inverter-based microgrids is proposed. A test system is studied to derive simple and concise stability criteria based on the proposed Lyapunov function method. Particularly, we show that unlike in large-scale power systems, for microgrids the transient susceptance B′ plays a crucial role in contracting the region of stable droop gains. Control schemes to minimize B′ are then investigated, enabling a different perspective in views of the virtual component method. Finally, simulations are carried out to validate the proposed approach via direct time-domain analysis.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1109/pesgm.2017.8274579
