An active voltage stabilizer for a generic DC microgrid

Vishnu Mahadeva Iyer; Srinivas Gulur; Subhashish Bhattacharya; Jun Kikuchi; Srikanthan Sridharan; Ke Zou; Chingchi Chen

doi:10.1109/ECCE.2019.8912949

An active voltage stabilizer for a generic DC microgrid

Vishnu Mahadeva Iyer, Srinivas Gulur, Subhashish Bhattacharya, Jun Kikuchi, Srikanthan Sridharan, Ke Zou, Chingchi Chen

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

3 Scopus citations

Abstract

This paper analyzes the low frequency stability chal-lenges that exist in a generic DC microgrid system. The conditions for system stability are derived from fundamental principles. A capacitive energy storage system based active voltage stabilizer, that handles the power fluctuations within the system during transient conditions, is proposed to stabilize the DC microgrid. The functionality of the active stabilizer, based on a bidirectional DC-DC converter, is elucidated and a suitable control strategy is proposed. The proposed active stabilizer and its associated control system involves only local voltage sensing and does not alter the generic DC microgrid structure. The proposed approach is validated through analytical models and circuit simulations. A dual active bridge (DAB) converter based active stabilizer is implemented and hardware based experimental results from a laboratory test-bench are provided to validate functionality and effectiveness of the proposed approach.

Original language	English (US)
Title of host publication	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	462-468
Number of pages	7
ISBN (Electronic)	9781728103952
DOIs	https://doi.org/10.1109/ECCE.2019.8912949
State	Published - Sep 2019
Externally published	Yes
Event	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States Duration: Sep 29 2019 → Oct 3 2019

Publication series

Name	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Country/Territory	United States
City	Baltimore
Period	9/29/19 → 10/3/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Keywords

Active stabilizer
DC microgrid
Dual active bridge (DAB)
Energy storage
Impedance emulation
Small signal impedance
Small signal modeling
Stability

Publisher link

10.1109/ECCE.2019.8912949

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Iyer, V. M., Gulur, S., Bhattacharya, S., Kikuchi, J., Sridharan, S., Zou, K., & Chen, C. (2019). An active voltage stabilizer for a generic DC microgrid. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 (pp. 462-468). Article 8912949 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2019.8912949

An active voltage stabilizer for a generic DC microgrid. / Iyer, Vishnu Mahadeva; Gulur, Srinivas; Bhattacharya, Subhashish et al.
2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 462-468 8912949 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

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

Iyer, VM, Gulur, S, Bhattacharya, S, Kikuchi, J, Sridharan, S, Zou, K & Chen, C 2019, An active voltage stabilizer for a generic DC microgrid. in 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019., 8912949, 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019, Institute of Electrical and Electronics Engineers Inc., pp. 462-468, 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019, Baltimore, United States, 9/29/19. https://doi.org/10.1109/ECCE.2019.8912949

Iyer VM, Gulur S, Bhattacharya S, Kikuchi J, Sridharan S, Zou K et al. An active voltage stabilizer for a generic DC microgrid. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 462-468. 8912949. (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). doi: 10.1109/ECCE.2019.8912949

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abstract = "This paper analyzes the low frequency stability chal-lenges that exist in a generic DC microgrid system. The conditions for system stability are derived from fundamental principles. A capacitive energy storage system based active voltage stabilizer, that handles the power fluctuations within the system during transient conditions, is proposed to stabilize the DC microgrid. The functionality of the active stabilizer, based on a bidirectional DC-DC converter, is elucidated and a suitable control strategy is proposed. The proposed active stabilizer and its associated control system involves only local voltage sensing and does not alter the generic DC microgrid structure. The proposed approach is validated through analytical models and circuit simulations. A dual active bridge (DAB) converter based active stabilizer is implemented and hardware based experimental results from a laboratory test-bench are provided to validate functionality and effectiveness of the proposed approach.",

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AU - Zou, Ke

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AB - This paper analyzes the low frequency stability chal-lenges that exist in a generic DC microgrid system. The conditions for system stability are derived from fundamental principles. A capacitive energy storage system based active voltage stabilizer, that handles the power fluctuations within the system during transient conditions, is proposed to stabilize the DC microgrid. The functionality of the active stabilizer, based on a bidirectional DC-DC converter, is elucidated and a suitable control strategy is proposed. The proposed active stabilizer and its associated control system involves only local voltage sensing and does not alter the generic DC microgrid structure. The proposed approach is validated through analytical models and circuit simulations. A dual active bridge (DAB) converter based active stabilizer is implemented and hardware based experimental results from a laboratory test-bench are provided to validate functionality and effectiveness of the proposed approach.

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An active voltage stabilizer for a generic DC microgrid

Abstract

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Keywords

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