Research on Voltage Control Strategy of DC Microgrid System
DOI: 10.23977/jeeem.2023.060408 | Downloads: 8 | Views: 339
Author(s)
Yutong Shi 1, San Li 1
Affiliation(s)
1 Wuhan Maritime Communication Research Institute, Wuhan, 430079, Hubei, China
Corresponding Author
San LiABSTRACT
New energy sources such as solar energy, tidal energy, and geothermal energy possess characteristics of random dispersion, making centralized utilization unfeasible. Microgrid structures and control methods are relatively simple, enabling rational utilization of new energy sources, and have garnered widespread attention. Compared to AC microgrids, DC microgrids are easier to control, reduce energy conversion steps, eliminate factors like reactive power, and maintain frequency consistency. Thus, they are more conducive to the efficient utilization and coordinated control of new energy. This paper investigates the coordinated control strategy of a photovoltaic and energy storage-based DC microgrid system. By assessing the range of bus voltage and the power balance between photovoltaic output and load absorption within the system, a coordinated operational approach for the photovoltaic-energy storage DC microgrid is proposed. Segregating the system into various operating states based on different control methods for photovoltaic units and energy storage, the system's operation becomes more efficient and economical. This further validates the feasibility of the proposed strategy.
KEYWORDS
DC microgrid; photovoltaic unit; energy storage; coordinated controlCITE THIS PAPER
Yutong Shi, San Li, Research on Voltage Control Strategy of DC Microgrid System. Journal of Electrotechnology, Electrical Engineering and Management (2023) Vol. 6: 55-65. DOI: http://dx.doi.org/10.23977/jeeem.2023.060408.
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