A distributed control scheme for voltage regulation in DC distribution systems

Amr I. Hamad; Hany E. Farag; E. F. El-Saadany

doi:10.1109/PESGM.2014.6939570

A distributed control scheme for voltage regulation in DC distribution systems

Electrical Engineering

University of Waterloo

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

2 Scopus citations

Abstract

In this paper, a distributed control scheme is proposed to mitigate the challenges of voltage regulation in DC distribution systems and facilitate high penetration of distributed and renewable energy resources. The proposed control scheme consists of two main stages. In the first stage, a distributed state estimation algorithm is implemented to estimate the voltage profile in a DC distribution system and enhance the AC/DC converter operation in order to keep the system voltage within its specified limits. Further, in case of occurrence of voltage violation that cannot be handled by the AC/DC interfacing converter a reconsideration of power management would take place. Thus, in the second stage, a distributed power management optimization problem is formulated to maximize the total DGs' revenue; while keeping the voltages of all system buses within limits. The formulated problem is classified as a convex optimization problem under global constraints. A distributed Lagrangian Primal-Dual Subgradient (DLPDS) algorithm that is superior in solving such optimization problems is proposed in this work.

Original language	British English
Title of host publication	2014 IEEE PES General Meeting / Conference and Exposition
Publisher	IEEE Computer Society
Edition	October
ISBN (Electronic)	9781479964154
DOIs	https://doi.org/10.1109/PESGM.2014.6939570
State	Published - 29 Oct 2014
Event	2014 IEEE Power and Energy Society General Meeting - National Harbor, United States Duration: 27 Jul 2014 → 31 Jul 2014

Publication series

Name	IEEE Power and Energy Society General Meeting
Number	October
Volume	2014-October
ISSN (Print)	1944-9925
ISSN (Electronic)	1944-9933

Conference

Conference	2014 IEEE Power and Energy Society General Meeting
Country/Territory	United States
City	National Harbor
Period	27/07/14 → 31/07/14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

DC distribution systems
decentralized optimization
multi-agent
voltage regulation

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10.1109/PESGM.2014.6939570

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Hamad, A. I., Farag, H. E., & El-Saadany, E. F. (2014). A distributed control scheme for voltage regulation in DC distribution systems. In 2014 IEEE PES General Meeting / Conference and Exposition (October ed.). Article 6939570 (IEEE Power and Energy Society General Meeting; Vol. 2014-October, No. October). IEEE Computer Society. https://doi.org/10.1109/PESGM.2014.6939570

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abstract = "In this paper, a distributed control scheme is proposed to mitigate the challenges of voltage regulation in DC distribution systems and facilitate high penetration of distributed and renewable energy resources. The proposed control scheme consists of two main stages. In the first stage, a distributed state estimation algorithm is implemented to estimate the voltage profile in a DC distribution system and enhance the AC/DC converter operation in order to keep the system voltage within its specified limits. Further, in case of occurrence of voltage violation that cannot be handled by the AC/DC interfacing converter a reconsideration of power management would take place. Thus, in the second stage, a distributed power management optimization problem is formulated to maximize the total DGs' revenue; while keeping the voltages of all system buses within limits. The formulated problem is classified as a convex optimization problem under global constraints. A distributed Lagrangian Primal-Dual Subgradient (DLPDS) algorithm that is superior in solving such optimization problems is proposed in this work.",

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Hamad, AI, Farag, HE & El-Saadany, EF 2014, A distributed control scheme for voltage regulation in DC distribution systems. in 2014 IEEE PES General Meeting / Conference and Exposition. October edn, 6939570, IEEE Power and Energy Society General Meeting, no. October, vol. 2014-October, IEEE Computer Society, 2014 IEEE Power and Energy Society General Meeting, National Harbor, United States, 27/07/14. https://doi.org/10.1109/PESGM.2014.6939570

A distributed control scheme for voltage regulation in DC distribution systems. / Hamad, Amr I.; Farag, Hany E.; El-Saadany, E. F.
2014 IEEE PES General Meeting / Conference and Exposition. October. ed. IEEE Computer Society, 2014. 6939570 (IEEE Power and Energy Society General Meeting; Vol. 2014-October, No. October).

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

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N2 - In this paper, a distributed control scheme is proposed to mitigate the challenges of voltage regulation in DC distribution systems and facilitate high penetration of distributed and renewable energy resources. The proposed control scheme consists of two main stages. In the first stage, a distributed state estimation algorithm is implemented to estimate the voltage profile in a DC distribution system and enhance the AC/DC converter operation in order to keep the system voltage within its specified limits. Further, in case of occurrence of voltage violation that cannot be handled by the AC/DC interfacing converter a reconsideration of power management would take place. Thus, in the second stage, a distributed power management optimization problem is formulated to maximize the total DGs' revenue; while keeping the voltages of all system buses within limits. The formulated problem is classified as a convex optimization problem under global constraints. A distributed Lagrangian Primal-Dual Subgradient (DLPDS) algorithm that is superior in solving such optimization problems is proposed in this work.

AB - In this paper, a distributed control scheme is proposed to mitigate the challenges of voltage regulation in DC distribution systems and facilitate high penetration of distributed and renewable energy resources. The proposed control scheme consists of two main stages. In the first stage, a distributed state estimation algorithm is implemented to estimate the voltage profile in a DC distribution system and enhance the AC/DC converter operation in order to keep the system voltage within its specified limits. Further, in case of occurrence of voltage violation that cannot be handled by the AC/DC interfacing converter a reconsideration of power management would take place. Thus, in the second stage, a distributed power management optimization problem is formulated to maximize the total DGs' revenue; while keeping the voltages of all system buses within limits. The formulated problem is classified as a convex optimization problem under global constraints. A distributed Lagrangian Primal-Dual Subgradient (DLPDS) algorithm that is superior in solving such optimization problems is proposed in this work.

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KW - decentralized optimization

KW - multi-agent

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A distributed control scheme for voltage regulation in DC distribution systems

Abstract

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UN SDGs

Keywords

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