On the topology for a smart direct current microgrid for a cluster of zero-net energy buildings

González-Longatt, Francisco; Sanchez, Francisco; Singh, S. N.

doi:10.1016/b978-0-12-817774-7.00019-3

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…Due to the inherent DC nature of most RESs and ESSs, DC-Microgrids (DC-MGs) are becoming promising candidates for their further incorporation [1,2]. In this approach, Distributed Power Generation (DPG) is in the spotlight, supported by the target of achieving Net Zero emissions on a residential, commercial, and industrial level [3]. This article focuses on the former, as it has the potential to become the cornerstone of DPG.…”

Section: Introductionmentioning

confidence: 99%

Review on Non-Isolated Multiport Converters for Residential DC Microgrids

Salagiannis,

Tatakis

2023

Energies

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Nowadays, energy sustainability needs drive the development of novel power system architectures that efficiently harvest and deliver green energy. Specifically, DC Microgrids (DC-MG) have emerged as promising bases for distributed power generation, especially in residential applications. The pivotal role of power conversion and the need for more affordable and compact converters has led to an increasing research interest. MultiPort Converters (MPCs) exhibit beneficial operational characteristics for these applications and, therefore, a plethora of different topologies is suggested in the literature. Even though there have been some attempts to organize and review the field status, the categorization is based on the existence or not of isolation between the converter’s ports, without providing insight on the topology conception. In this article, a literature review is conducted to specify the most suitable non-isolated MPC topologies for residential DC-MGs. Converters with a power rating ranging from 0.1 to 1 kW are compared based on technical features and categorized according to their topology derivation process. This procedure is performed separately for MPCs suitable for unipolar and bipolar DC Buses. The selected approach highlights the design basis for each MPC in a structured manner, facilitating further development of original converters by both new and experienced researchers.

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Section: Introductionmentioning

confidence: 99%

Review on Non-Isolated Multiport Converters for Residential DC Microgrids

Salagiannis,

Tatakis

2023

Energies

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“…All of these devices are interfaced with the distribution network through the implementation of power electronic converters with alternating current (AC) and direct current (DC) conversion stages as a function of the device interconnected and the technology of operation of the distribution grid, i.e., AC or DC network [5,6]. From the beginning to the electrical networks to our days, the predominant technology for building electrical networks in transmission levels has been the AC technology due to the most of the demands connected to the networks were simple, i.e., electrical rotate machines (induction motors), temperature conditioners, and illumination, among others; however, the nature of the loads have drastically changed with the appearance of computers, electric vehicles, household appliances, and small dispersed generating and storage systems, most of them operated with DC technologies [7][8][9][10]. Recent studies have demonstrated the advantages of having distribution networks in medium voltage levels operated with DC technologies due to important reductions in energy losses associated with the distribution activity since the reactive power is compensated directly in the point of connection of the load [11,12].…”

Section: Introductionmentioning

confidence: 99%

On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation

et al. 2021

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This paper deals with the problem of the optimal selection and location of batteries in DC distribution grids by proposing a new mixed-integer convex model. The exact mixed-integer nonlinear model is transformed into a mixed-integer quadratic convex model (MIQC) by approximating the product among voltages in the power balance equations as a hyperplane. The most important characteristic of our proposal is that the MIQC formulations ensure the global optimum reaching via branch & bound methods and quadratic programming since each combination of the binary variables generates a node with a convex optimization subproblem. The formulation of the objective function is associated with the minimization of the energy losses for a daily operation scenario considering high renewable energy penetration. Numerical simulations show the effectiveness of the proposed MIQC model to reach the global optimum of the optimization model when compared with the exact optimization model in a 21-node test feeder. All the validations are carried out in the GAMS optimization software.

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