Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids

Chendan Li; Tomislav Dragicevic; Nelson Leonardo Diaz Aldana; Juan Carlos Vasquez; Josep M. Guerrero

doi:10.1109/ENERGYCON.2014.6850592

Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids

Chendan Li, Tomislav Dragicevic, Nelson Leonardo Diaz Aldana, Juan Carlos Vasquez, Josep M. Guerrero

AAU Energy

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

64 Citations (Scopus)

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Abstract

Due to higher power quality, lower conversion loss, and more DC loads, there has been an increasing awareness on DC microgrid. Previous emphasis has been on equal power sharing among different units in the DC microgrid, while
overlooking the coordination of the energy storage units to maintain the State-of-Charge balance. In this paper, a new droop method based on voltage scheduling for State-of-Charge balance is proposed to keep the SoC balance for the energy storage units. The proposed method has the advantage of avoiding the stability problem existed in traditional methods based on droop gain
scheduling. Simulation experiment is taken in Matlab on a DC microgrid with two distributed energy storage units. The simulation results show that the proposed method has successfully achieved SoC balance during the load changes while
maintaining the DC bus voltage within the allowable range.

Original language	English
Title of host publication	Proceedings of the 2014 IEEE International Energy Conference (ENERGYCON)
Number of pages	5
Publisher	IEEE Press
Publication date	May 2014
Pages	1310-1314
ISBN (Print)	978-1-4799-2449-3
DOIs	https://doi.org/10.1109/ENERGYCON.2014.6850592
Publication status	Published - May 2014
Event	2014 IEEE International Energy Conference (ENERGYCON) - Dubrovnik, Croatia Duration: 13 May 2014 → 16 May 2014

Conference

Conference	2014 IEEE International Energy Conference (ENERGYCON)
Country/Territory	Croatia
City	Dubrovnik
Period	13/05/2014 → 16/05/2014

Series	I E E E International Energy Conference. ENERGYCON proceedings

Keywords

Voltage Scheduling
State-of-Charge Balance
Energy Storage
DC Microgrids

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Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids PREPRINTSubmitted manuscript, 397 KB

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Cite this

@inproceedings{a9bf3083d98543c68f38e8e1e12a762a,

title = "Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids",

abstract = "Due to higher power quality, lower conversion loss, and more DC loads, there has been an increasing awareness on DC microgrid. Previous emphasis has been on equal power sharing among different units in the DC microgrid, whileoverlooking the coordination of the energy storage units to maintain the State-of-Charge balance. In this paper, a new droop method based on voltage scheduling for State-of-Charge balance is proposed to keep the SoC balance for the energy storage units. The proposed method has the advantage of avoiding the stability problem existed in traditional methods based on droop gainscheduling. Simulation experiment is taken in Matlab on a DC microgrid with two distributed energy storage units. The simulation results show that the proposed method has successfully achieved SoC balance during the load changes whilemaintaining the DC bus voltage within the allowable range.",

keywords = "Voltage Scheduling, State-of-Charge Balance, Energy Storage, DC Microgrids",

author = "Chendan Li and Tomislav Dragicevic and Aldana, {Nelson Leonardo Diaz} and Vasquez, {Juan Carlos} and Guerrero, {Josep M.}",

year = "2014",

month = may,

doi = "10.1109/ENERGYCON.2014.6850592",

language = "English",

isbn = "978-1-4799-2449-3",

series = "I E E E International Energy Conference. ENERGYCON proceedings",

publisher = "IEEE Press",

pages = "1310--1314 ",

booktitle = "Proceedings of the 2014 IEEE International Energy Conference (ENERGYCON)",

note = "2014 IEEE International Energy Conference (ENERGYCON) ; Conference date: 13-05-2014 Through 16-05-2014",

}

Li, C, Dragicevic, T, Aldana, NLD, Vasquez, JC & Guerrero, JM 2014, Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids. in Proceedings of the 2014 IEEE International Energy Conference (ENERGYCON). IEEE Press, I E E E International Energy Conference. ENERGYCON proceedings, pp. 1310-1314 , 2014 IEEE International Energy Conference (ENERGYCON), Dubrovnik, Croatia, 13/05/2014. https://doi.org/10.1109/ENERGYCON.2014.6850592

Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids. / Li, Chendan; Dragicevic, Tomislav; Aldana, Nelson Leonardo Diaz et al.
Proceedings of the 2014 IEEE International Energy Conference (ENERGYCON). IEEE Press, 2014. p. 1310-1314 (I E E E International Energy Conference. ENERGYCON proceedings).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids

AU - Li, Chendan

AU - Dragicevic, Tomislav

AU - Aldana, Nelson Leonardo Diaz

AU - Vasquez, Juan Carlos

AU - Guerrero, Josep M.

PY - 2014/5

Y1 - 2014/5

N2 - Due to higher power quality, lower conversion loss, and more DC loads, there has been an increasing awareness on DC microgrid. Previous emphasis has been on equal power sharing among different units in the DC microgrid, whileoverlooking the coordination of the energy storage units to maintain the State-of-Charge balance. In this paper, a new droop method based on voltage scheduling for State-of-Charge balance is proposed to keep the SoC balance for the energy storage units. The proposed method has the advantage of avoiding the stability problem existed in traditional methods based on droop gainscheduling. Simulation experiment is taken in Matlab on a DC microgrid with two distributed energy storage units. The simulation results show that the proposed method has successfully achieved SoC balance during the load changes whilemaintaining the DC bus voltage within the allowable range.

AB - Due to higher power quality, lower conversion loss, and more DC loads, there has been an increasing awareness on DC microgrid. Previous emphasis has been on equal power sharing among different units in the DC microgrid, whileoverlooking the coordination of the energy storage units to maintain the State-of-Charge balance. In this paper, a new droop method based on voltage scheduling for State-of-Charge balance is proposed to keep the SoC balance for the energy storage units. The proposed method has the advantage of avoiding the stability problem existed in traditional methods based on droop gainscheduling. Simulation experiment is taken in Matlab on a DC microgrid with two distributed energy storage units. The simulation results show that the proposed method has successfully achieved SoC balance during the load changes whilemaintaining the DC bus voltage within the allowable range.

KW - Voltage Scheduling

KW - State-of-Charge Balance

KW - Energy Storage

KW - DC Microgrids

U2 - 10.1109/ENERGYCON.2014.6850592

DO - 10.1109/ENERGYCON.2014.6850592

M3 - Article in proceeding

SN - 978-1-4799-2449-3

T3 - I E E E International Energy Conference. ENERGYCON proceedings

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Li C, Dragicevic T, Aldana NLD, Vasquez JC , Guerrero JM. Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids. In Proceedings of the 2014 IEEE International Energy Conference (ENERGYCON). IEEE Press. 2014. p. 1310-1314 . (I E E E International Energy Conference. ENERGYCON proceedings). doi: 10.1109/ENERGYCON.2014.6850592

Voltage Scheduling Droop Control for State-of-Charge Balance of Distributed Energy Storage in DC Microgrids

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