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Buildings 2017, 7(2), 42; doi:10.3390/buildings7020042

A Control Strategy of DC Building Microgrid Connected to the Neighborhood and AC Power Network

1
University Lyon, Université Lyon 1, Laboratoire Ampère, F-69622, LYON, France
2
Faculty of Electrical Engineering, Electric Power University, 100000 Hanoi, Vietnam
3
Univiversity Lyon, INSA Lyon, Laboratoire Ampère, F-69621, LYON, France
*
Author to whom correspondence should be addressed.
Academic Editor: Manuela Sechilariu
Received: 31 March 2017 / Revised: 12 May 2017 / Accepted: 17 May 2017 / Published: 20 May 2017
(This article belongs to the Special Issue Advance in Building Integrated Microgrid Systems)
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Abstract

Recently, the use of DC microgrid distribution system has become more attractive than traditional AC systems due to their energy efficiency and ability to easily integrate with renewable energy sources and batteries. This paper proposes a 500 V DC microgrid which consists of a 20 kWp photovoltaic panel, batteries, and DC loads. A hierarchical control strategy to ensure balance power of the DC microgrid and the maintenance of common DC bus voltage is presented. The capability of exchanging power energy of the microgrid with the power system of neighborhood buildings is also considered. Typical operation modes are simulated in the Matlab/simulink environment to confirm the good performance of the controllers and the efficiency of appropriately controlling the charge–discharge of the battery system. This research is expected to bring benefits to the design and operation of the system, such as reducing the capacity of batteries, increasing the self-supply of buildings, and decreasing the electricity demand from the AC grid. View Full-Text
Keywords: DC microgrid; photovoltaic; control of batteries; hierarchical control; droop control method; self-supply DC microgrid; photovoltaic; control of batteries; hierarchical control; droop control method; self-supply
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ma, T.T.H.; Yahoui, H.; Vu, H.G.; Siauve, N.; Morel, H. A Control Strategy of DC Building Microgrid Connected to the Neighborhood and AC Power Network. Buildings 2017, 7, 42.

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