Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid

Kabindra Pokharel; Sonee Sapkota; Weilin Li; Donghua Wu; Ming Yan; Yi Wang

doi:10.1109/SCEMS48876.2020.9352372

Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid

Kabindra Pokharel, Sonee Sapkota, Weilin Li, Donghua Wu, Ming Yan, Yi Wang

School of Automation

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

For on/off-grid DC microgrid, this paper proposes an improved droop control strategy combined with DC bus signaling to split transient and average load power between supercapacitor (SC), battery, and grid. SC converter with virtual impedance droop is responsible for supplying transient load power, whereas battery converter and grid rectifier, both with virtual resistor droop, are responsible for additional average load power in off-grid and on-grid modes, respectively. DC bus signaling is implemented for the smooth transition of DC microgrid from off-grid to on-grid state. The working methods for the proposed control strategy and the design of the system are explained, and theoretical analyses are verified by simulations.

Original language	English
Title of host publication	2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	863-868
Number of pages	6
ISBN (Electronic)	9781728156224
DOIs	https://doi.org/10.1109/SCEMS48876.2020.9352372
State	Published - 4 Dec 2020
Event	2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020 - Jinan, China Duration: 4 Dec 2020 → 6 Dec 2020

Publication series

Name	2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020

Conference

Conference	2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020
Country/Territory	China
City	Jinan
Period	4/12/20 → 6/12/20

Keywords

DC bus signaling (DBS)
dynamic transient power-sharing
improved droop control
on/off-grid DC microgrid
supercapacitor

Access to Document

10.1109/SCEMS48876.2020.9352372

Cite this

Pokharel, K., Sapkota, S., Li, W., Wu, D., Yan, M., & Wang, Y. (2020). Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid. In 2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020 (pp. 863-868). Article 9352372 (2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SCEMS48876.2020.9352372

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title = "Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid",

abstract = "For on/off-grid DC microgrid, this paper proposes an improved droop control strategy combined with DC bus signaling to split transient and average load power between supercapacitor (SC), battery, and grid. SC converter with virtual impedance droop is responsible for supplying transient load power, whereas battery converter and grid rectifier, both with virtual resistor droop, are responsible for additional average load power in off-grid and on-grid modes, respectively. DC bus signaling is implemented for the smooth transition of DC microgrid from off-grid to on-grid state. The working methods for the proposed control strategy and the design of the system are explained, and theoretical analyses are verified by simulations.",

keywords = "DC bus signaling (DBS), dynamic transient power-sharing, improved droop control, on/off-grid DC microgrid, supercapacitor",

author = "Kabindra Pokharel and Sonee Sapkota and Weilin Li and Donghua Wu and Ming Yan and Yi Wang",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020 ; Conference date: 04-12-2020 Through 06-12-2020",

year = "2020",

month = dec,

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doi = "10.1109/SCEMS48876.2020.9352372",

language = "英语",

series = "2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020",

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Pokharel, K, Sapkota, S, Li, W, Wu, D, Yan, M & Wang, Y 2020, Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid. in 2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020., 9352372, 2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020, Institute of Electrical and Electronics Engineers Inc., pp. 863-868, 2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020, Jinan, China, 4/12/20. https://doi.org/10.1109/SCEMS48876.2020.9352372

Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid. / Pokharel, Kabindra; Sapkota, Sonee; Li, Weilin et al.
2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 863-868 9352372 (2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Pokharel, Kabindra

AU - Sapkota, Sonee

AU - Li, Weilin

AU - Wu, Donghua

AU - Yan, Ming

AU - Wang, Yi

PY - 2020/12/4

Y1 - 2020/12/4

N2 - For on/off-grid DC microgrid, this paper proposes an improved droop control strategy combined with DC bus signaling to split transient and average load power between supercapacitor (SC), battery, and grid. SC converter with virtual impedance droop is responsible for supplying transient load power, whereas battery converter and grid rectifier, both with virtual resistor droop, are responsible for additional average load power in off-grid and on-grid modes, respectively. DC bus signaling is implemented for the smooth transition of DC microgrid from off-grid to on-grid state. The working methods for the proposed control strategy and the design of the system are explained, and theoretical analyses are verified by simulations.

AB - For on/off-grid DC microgrid, this paper proposes an improved droop control strategy combined with DC bus signaling to split transient and average load power between supercapacitor (SC), battery, and grid. SC converter with virtual impedance droop is responsible for supplying transient load power, whereas battery converter and grid rectifier, both with virtual resistor droop, are responsible for additional average load power in off-grid and on-grid modes, respectively. DC bus signaling is implemented for the smooth transition of DC microgrid from off-grid to on-grid state. The working methods for the proposed control strategy and the design of the system are explained, and theoretical analyses are verified by simulations.

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KW - dynamic transient power-sharing

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Pokharel K, Sapkota S, Li W, Wu D, Yan M, Wang Y. Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid. In 2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 863-868. 9352372. (2020 IEEE Student Conference on Electric Machines and Systems, SCEMS 2020). doi: 10.1109/SCEMS48876.2020.9352372

Dynamic Transient Power Allocation Strategy in On/Off-Grid DC Microgrid

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