LAPSE

LAPSE:2019.0283
Published Article
LAPSE:2019.0283
Improved Direct Deadbeat Voltage Control with an Actively Damped Inductor-Capacitor Plant Model in an Islanded AC Microgrid
Jaehong Kim, Jitae Hong, Hongju Kim
February 5, 2019
A direct deadbeat voltage control design method for inverter-based microgrid applications is proposed in this paper. When the inductor-capacitor (LC) filter output voltage is directly controlled using voltage source inverters (VSIs), the plant dynamics exhibit second-order resonant characteristics with a load current disturbance. To effectively damp the resonance caused by the output LC filter, an active damping strategy that does not cause additional energy loss is utilized. The proposed direct deadbeat voltage control law is devised from a detailed, actively damped LC plant model. The proposed deadbeat control method enhances voltage control performance owing to its better disturbance rejection capability than the conventional deadbeat or proportional-integral-based control methods. The most important advantage of the proposed deadbeat control method is that it makes the deadbeat control more robust by bringing discrete closed-loop poles closer to the origin. Simulation and experimental results are shown to verify the enhanced voltage control performance and stability of the proposed voltage control method.
Keywords
deadbeat control, distributed generators (DGs), inverters, microgrid, uninterruptible power supply (UPS)
Suggested Citation
Kim J, Hong J, Kim H. Improved Direct Deadbeat Voltage Control with an Actively Damped Inductor-Capacitor Plant Model in an Islanded AC Microgrid. (2019). LAPSE:2019.0283
Author Affiliations
Kim J: Department of Electrical Engineering, Chosun University, 309, Pilmun-daero, Dong-gu, Gwangju 61452, Korea [ORCID]
Hong J: Precision Control Research Center, Korea Electrotechnology Research Institute (KERI), 12, Bulmosan-ro 10beon-gil, Seongsan-gu, Changwon-si, Gyeongsangnam-do 51543, Korea
Kim H: Precision Control Research Center, Korea Electrotechnology Research Institute (KERI), 12, Bulmosan-ro 10beon-gil, Seongsan-gu, Changwon-si, Gyeongsangnam-do 51543, Korea
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Journal Name
Energies
Volume
9
Issue
11
Article Number
E978
Year
2016
Publication Date
2016-11-22
Published Version
ISSN
1996-1073
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Original Submission
Other Meta
PII: en9110978, Publication Type: Journal Article
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LAPSE:2019.0283
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doi:10.3390/en9110978
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Feb 5, 2019
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CC BY 4.0
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[v1] (Original Submission)
Feb 5, 2019
 
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Feb 5, 2019
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Original Submitter
Calvin Tsay
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