DC electric springs - A technology for stabilizing DC power distribution systems

Kwan-Tat Mok; Ming-Hao Wang; Siew-Chong Tan; S. Y. (Ron) Hui

doi:10.1109/TPEL.2016.2542278

DC electric springs - A technology for stabilizing DC power distribution systems

Kwan-Tat Mok
, Ming-Hao Wang
, Siew-Chong Tan
, S. Y. (Ron) Hui

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

113 Citations (Scopus)

Abstract

There is a growing interest in using dc power systems and microgrids for our electricity transmission and distribution, particularly with the increasing penetration of photovoltaic power systems. This paper presents an electric active suspension technology known as the dc electric springs (DC-ES) for voltage stabilization and power quality improvement. The basic operating modes and characteristic of a DC-ES with different types of serially connected non-critical loads will first be introduced. Then, the various power delivery issues of the dc power systems, namely bus voltage variation, voltage droop, system fault, and harmonics, are briefly described. The operating limits of a DC-ES in a dc power grid is studied. It is demonstrated that the aforementioned issues can be mitigated using the proposed DC-ES technology. Experiment results are provided to verify the feasibility of the proposed technology.

© 2016 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

Original language	English
Article number	7434051
Pages (from-to)	1088-1105
Journal	IEEE Transactions on Power Electronics
Volume	32
Issue number	2
Online published	15 Mar 2016
DOIs	https://doi.org/10.1109/TPEL.2016.2542278
Publication status	Published - Feb 2017
Externally published	Yes

Funding

This work was supported in part by the Hong Kong Research Grant Council under the Theme-based project T23-701/14-N.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

DC grids
distributed power systems
electric springs
power electronics
smart grid
smart load

RGC Funding Information

RGC-funded

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10.1109/TPEL.2016.2542278

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title = "DC electric springs - A technology for stabilizing DC power distribution systems",

abstract = "There is a growing interest in using dc power systems and microgrids for our electricity transmission and distribution, particularly with the increasing penetration of photovoltaic power systems. This paper presents an electric active suspension technology known as the dc electric springs (DC-ES) for voltage stabilization and power quality improvement. The basic operating modes and characteristic of a DC-ES with different types of serially connected non-critical loads will first be introduced. Then, the various power delivery issues of the dc power systems, namely bus voltage variation, voltage droop, system fault, and harmonics, are briefly described. The operating limits of a DC-ES in a dc power grid is studied. It is demonstrated that the aforementioned issues can be mitigated using the proposed DC-ES technology. Experiment results are provided to verify the feasibility of the proposed technology. {\textcopyright} 2016 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.",

keywords = "DC grids, distributed power systems, electric springs, power electronics, smart grid, smart load",

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AU - Mok, Kwan-Tat

AU - Wang, Ming-Hao

AU - Tan, Siew-Chong

AU - Hui, S. Y. (Ron)

PY - 2017/2

Y1 - 2017/2

N2 - There is a growing interest in using dc power systems and microgrids for our electricity transmission and distribution, particularly with the increasing penetration of photovoltaic power systems. This paper presents an electric active suspension technology known as the dc electric springs (DC-ES) for voltage stabilization and power quality improvement. The basic operating modes and characteristic of a DC-ES with different types of serially connected non-critical loads will first be introduced. Then, the various power delivery issues of the dc power systems, namely bus voltage variation, voltage droop, system fault, and harmonics, are briefly described. The operating limits of a DC-ES in a dc power grid is studied. It is demonstrated that the aforementioned issues can be mitigated using the proposed DC-ES technology. Experiment results are provided to verify the feasibility of the proposed technology. © 2016 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

AB - There is a growing interest in using dc power systems and microgrids for our electricity transmission and distribution, particularly with the increasing penetration of photovoltaic power systems. This paper presents an electric active suspension technology known as the dc electric springs (DC-ES) for voltage stabilization and power quality improvement. The basic operating modes and characteristic of a DC-ES with different types of serially connected non-critical loads will first be introduced. Then, the various power delivery issues of the dc power systems, namely bus voltage variation, voltage droop, system fault, and harmonics, are briefly described. The operating limits of a DC-ES in a dc power grid is studied. It is demonstrated that the aforementioned issues can be mitigated using the proposed DC-ES technology. Experiment results are provided to verify the feasibility of the proposed technology. © 2016 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

KW - DC grids

KW - distributed power systems

KW - electric springs

KW - power electronics

KW - smart grid

KW - smart load

UR - https://www.scopus.com/pages/publications/85000770409

UR - https://www.scopus.com/pages/publications/85000770409#tab=impact

U2 - 10.1109/TPEL.2016.2542278

DO - 10.1109/TPEL.2016.2542278

M3 - RGC 21 - Publication in refereed journal

SN - 0885-8993

VL - 32

SP - 1088

EP - 1105

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 2

M1 - 7434051

ER -

DC electric springs - A technology for stabilizing DC power distribution systems

Abstract

Funding

UN SDGs

Research Keywords

RGC Funding Information

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