LAPSE:2019.0254
Published Article
LAPSE:2019.0254
Conventional P-ω/Q-V Droop Control in Highly Resistive Line of Low-Voltage Converter-Based AC Microgrid
Xiaochao Hou, Yao Sun, Wenbin Yuan, Hua Han, Chaolu Zhong, Josep M. Guerrero
February 5, 2019
In low-voltage converter-based alternating current (AC) microgrids with resistive distribution lines, the P-V droop with Q-f boost (VPD/FQB) is the most common method for load sharing. However, it cannot achieve the active power sharing proportionally. To overcome this drawback, the conventional P-ω/Q-V droop control is adopted in the low-voltage AC microgrid. As a result, the active power sharing among the distributed generators (DGs) is easily obtained without communication. More importantly, this study clears up the previous misunderstanding that conventional P-ω/Q-V droop control is only applicable to microgrids with highly inductive lines, and lays a foundation for the application of conventional droop control under different line impedances. Moreover, in order to guarantee the accurate reactive power sharing, a guide for designing Q-V droop gains is given, and virtual resistance is adopted to shape the desired output impedance. Finally, the effects of power sharing and transient response are verified through simulations and experiments in converter-based AC Microgrid.
Keywords
droop control, low-voltage alternating current (AC) microgrid, power sharing, small signal stability
Suggested Citation
Hou X, Sun Y, Yuan W, Han H, Zhong C, Guerrero JM. Conventional P-ω/Q-V Droop Control in Highly Resistive Line of Low-Voltage Converter-Based AC Microgrid. (2019). LAPSE:2019.0254
Author Affiliations
Hou X: School of Information Science and Engineering, Central South University, Changsha 410083, China
Sun Y: School of Information Science and Engineering, Central South University, Changsha 410083, China
Yuan W: School of Information Science and Engineering, Central South University, Changsha 410083, China
Han H: School of Information Science and Engineering, Central South University, Changsha 410083, China
Zhong C: School of Information Science and Engineering, Central South University, Changsha 410083, China
Guerrero JM: Department of Energy Technology, Aalborg University, DK-9220 Aalborg East, Denmark [ORCID]
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Journal Name
Energies
Volume
9
Issue
11
Article Number
E943
Year
2016
Publication Date
2016-11-11
Published Version
ISSN
1996-1073
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PII: en9110943, Publication Type: Journal Article
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LAPSE:2019.0254
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doi:10.3390/en9110943
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Feb 5, 2019
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Calvin Tsay
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