Topic
Power optimizer
About: Power optimizer is a research topic. Over the lifetime, 10525 publications have been published within this topic receiving 199245 citations.
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26 Jun 2012
TL;DR: In this article, the authors present a system and methods for creating and operating a Direct Current (DC) micro-grid, which includes power generators, energy storage devices, and loads coupled to a common DC bus.
Abstract: Systems and methods are provided for creating and operating a Direct Current (DC) micro-grid. A DC micro-grid may include power generators, energy storage devices, and loads coupled to a common DC bus. Power electronics devices may couple the power generators, energy storage devices, and loads to the common DC bus and provide power transfer.
87 citations
TL;DR: The two MPPT techniques are dynamically compared and it is concluded that both algorithms can be performed for PV exposures in unfavourable but realistic external conditions.
87 citations
TL;DR: In this article, power quality considerations for direct current (DC) electric power distribution systems, particularly DC microgrids, are discussed, and a survey of literature addressing power quality issues in DC systems is presented.
Abstract: This review paper discusses power quality considerations for direct current (DC) electric power distribution systems, particularly DC microgrids. First, four selected sample DC architectures are discussed to provide motivation for the consideration of power quality in DC systems. Second, a brief overview of power quality challenges in conventional alternating current (AC) distribution systems is given to establish the field of power quality. Finally, a survey of literature addressing power quality issues in DC systems is presented, and necessary power quality considerations in DC distribution system design and operation are discussed.
87 citations
TL;DR: In this paper, the authors proposed a preliminary scheme for capacity allocation of hybrid energy storage system for power system peak shaving by using spectral analysis method, where the unbalance power generated from load dispatch plan and wind power outputs is decomposed into four components, which are outer day, intra-day, short-term and very shortterm components, by using Discrete Fourier Transform (DFT) and spectral decomposition method.
87 citations
TL;DR: The Holomorphic Embedding Loadflow Method is shown to extend naturally to DC power transmission systems, preserving all the constructive and deterministic properties that allow it to obtain the white branch solution in an unequivocal way.
Abstract: The Holomorphic Embedding Loadflow Method is extended here from AC to DC-based systems. Through an appropriate embedding technique, the method is shown to extend naturally to DC power transmission systems, preserving all the constructive and deterministic properties that allow it to obtain the white branch solution in an unequivocal way. Its applications extend to nascent meshed HVDC networks and also to power distribution systems in more-electric vehicles, ships, aircraft, and spacecraft. In these latter areas, it is shown how the method can cleanly accommodate the higher-order nonlinearities that characterize the I-V curves of many devices. The case of a photovoltaic array feeding a constant-power load is given as an example. The extension to the general problem of finding DC operating points in electronics is also discussed, and exemplified on the diode model.
87 citations