Control strategy for a distributed DC power system with renewable energy

Kurohane, Kyohei; Uehara, Akie; Senjyu, Tomonobu; Yona, Atsushi; Urasaki, Naomitsu; Funabashi, Toshihisa; Kim, Chul‐Hwan

doi:10.1016/j.renene.2010.05.017

Cited by 55 publications

(23 citation statements)

References 12 publications

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“…3) The power generators nd energy storage sources with the DC microgrid are operated cooperatively to control the DC bus voltage and to improve the power quality of the grid [13].…”

Section: A DC Microgrid Architecturementioning

confidence: 99%

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An Overview of Dc-Microgrid Architecture With Renewable Energy Resources

2015

IJAERD

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-In this paper DC-microgrid architecture with Renewable Energy Resources is described. Microgrid is a part of distribution network embedding multiple distributed generation systems (mostly non-conventional renewable energy sources like wind turbine, photovoltaic panels etc.) and storage systems with local loads, which can be disconnected from the upstream network under emergency conditions or as planned. Microgrid is defined as a cluster of distributed generation sources, distributed storage devices and distributed loads that operate so as to improve the reliability and quality of the local power supply and of the power system in a controlled manner. The present power system is established on AC that provide supply to the AC power machine, but the new on-going revolution in power electronics and many smart devices are coming in the list of domestic goods, which are powered by DC. To provide DC, AC supply should be rectified and regulated which produce losses. Instead of rectification a new independent DC microgrid architecture is designed to which the DC load can be connected. In this review paper, DC microgrid architecture can be independently powered by renewable energy resources which can directl y generate DC power. This paper also presents challenges in integration of renewable energy sources and their solution of integrating renewable energy sources utilization.

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“…3) The power generators nd energy storage sources with the DC microgrid are operated cooperatively to control the DC bus voltage and to improve the power quality of the grid [13].…”

Section: A DC Microgrid Architecturementioning

confidence: 99%

“…The protection in DC system is some more difficult than AC because there is no Zero cross point of voltage in DC system [12,13].…”

Section: )mentioning

confidence: 99%

An Overview of Dc-Microgrid Architecture With Renewable Energy Resources

2015

IJAERD

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“…There are some challenges while integrating with the renewable energy sources because their output is variable and intermittent also requires an energy storage system [5]. If only one renewab le energy source is considered then the integration is easier and it can be in standalone mode and it is also connected to the energy storage system.…”

Section: Introductionmentioning

confidence: 99%

“…DC microgrid able to supply AC and DC power both to the loads simu ltaneously. An autonomous coordinated control stratergy is proposed in this paper by using only DC voltage of DC microgrid (DCM G) [5]. The main issue is the circulating current among the distributed generators to the DC microgrid, when the voltage difference occurs among them.…”

Section: Introductionmentioning

confidence: 99%

“…Po wer generators by the wind turbine distributed generation are consumed by the loads connected locally to the wind turbine generators and the remain ing part of the wind power generators flow through DC grid to others loads in DC microgrid [5]. The solar-photovoltaic system with the MPPT control is integrated to DC microgrid through a DC-DC boost converter.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of Dc Microgrid With Integration of Renewable Energy Resources

2015

IJAERD

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A novel decentralized voltage control method for direct current microgrids with sensitive loads

Asad

Kazemi

2013

Int. Trans. Electr. Energ. Syst.

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Summary Low‐voltage direct current (DC) microgrids will have a significant position in smart grids. Of course, currently, DC microgrids are mainly used in the areas with sensitive electrical loads. The main issue in these microgrids is the voltage control. In this paper, a practical, reliable, modular, autonomous, and decentralized voltage control method, namely the voltage‐based power‐voltage (VbPV) control method, is proposed for the most common type of DC microgrids, that is, the DC microgrids with sensitive loads. The proposed voltage control method leads to the flattest voltage profile, which is essential for the DC microgrids. Besides, the presented method minimizes the power loss and maximizes the line capacity release. It is noteworthy that the VbPV control method requires no telecommunication infrastructure. Furthermore, contrary to some other DC voltage control methods, it is applicable to different real DC microgrids. Here, some numerical examples are mentioned to discuss and clarify the remarkable achievements of the VbPV control method. The analytic and simulation results confirm the successful performance of the VbPV control method. Copyright © 2013 John Wiley & Sons, Ltd.

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Control strategy for a distributed DC power system with renewable energy

Cited by 55 publications

References 12 publications

An Overview of Dc-Microgrid Architecture With Renewable Energy Resources

An Overview of Dc-Microgrid Architecture With Renewable Energy Resources

Simulation of Dc Microgrid With Integration of Renewable Energy Resources

A novel decentralized voltage control method for direct current microgrids with sensitive loads

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