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Decentralized State Estimation for Hybrid AC/DC Microgrids
IEEE Systems Journal, 2018This paper presents a decentralized state estimation (SE) for the newly emerging hybrid ac/dc microgrid. The microgrid consists of an ac and a dc network which are connected via the interlinking ac/dc converter. The proposed SE is able to estimate the state variables of both networks in a decentralized way that the estimation is separately conducted ...
Nan Xia +3 more
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Inexact power sharing in AC/DC hybrid microgrids
2016 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE), 2016The AC/DC hybrid topology for the future smart grid is a promising configuration that allows integrating the energy resources and modern loads of AC and DC type. Understanding the AC/DC hybrid microgrids (HMGs) operating in islanding mode and its operational philosophy will pave the road towards the future smart grid with a plug-and-play feature.
Abdelsalam A. Eajal +2 more
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Hybrid AC–DC Microgrid: Systematic Evaluation of Control Strategies
IEEE Transactions on Smart Grid, 2018Hybrid ac-dc microgrid architecture is attracting special attention since it combines the benefits of both ac and dc systems. Control of hybrid microgrid presents a significant research and engineering challenge and hence needs increased research efforts.
Ajay Gupta +2 more
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Research and Simulation of Hybrid AC/DC Microgrid
2020 4th International Conference on HVDC (HVDC), 2020This paper mainly discusses the structure and control strategy of hybrid AC/DC microgrid. The AC/DC hybrid microgrid under consideration consists of photovoltaic (PV) panel, battery, DC load, AC load, induction motor and several converters. Using maximum power point tracking (MPPT) technology to optimize the output power of PV, the battery and ...
Feng Gao +4 more
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Autonomous operation of hybrid AC-DC microgrids
2010 IEEE International Conference on Sustainable Energy Technologies (ICSET), 2010This paper investigates on the active power sharing of an autonomous hybrid microgrid. Unlike existing microgrids which are purely ac, the hybrid microgrid studied here comprises a dc and an ac sub-grid, interconnected by a power electronic interface. To avoid complexity and save cost, the power interface should preferably be a simple traditional six ...
null Chi Jin +4 more
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A Hybrid AC/DC Microgrid and Its Coordination Control
IEEE Transactions on Smart Grid, 2011This paper proposes a hybrid ac/dc micro grid to reduce the processes of multiple dc-ac-dc or ac-dc-ac conversions in an individual ac or dc grid. The hybrid grid consists of both ac and dc networks connected together by multi-bidirectional converters. AC sources and loads are connected to the ac network whereas dc sources and loads are tied to the dc ...
Xiong Liu +2 more
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Steady-state analysis for hybrid AC/DC microgrids
2016 IEEE International Symposium on Circuits and Systems (ISCAS), 2016This paper demonstrates the generic models of different hybrid ac/dc microgrids components. The operational philosophy is oriented towards decentralized schemes while considering the absence of a single slack bus in the entire system. Instead, the DG units operate based on droop characteristics, thereby forming a multi-slack distribution system, and ...
Amr A. Hamad, Ehab F. El-Saadany
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Hybrid Robust-CVaR optimization of Hybrid AC-DC Microgrid
2021 11th Smart Grid Conference (SGC), 2021In this paper, the risk assessment of a hybrid AC-DC (HACDC) microgrid (MG) and a conventional AC (CAC) MGs in the presence of renewable resources and electric vehicles (EVs) is studied and compared with each other. Due to the presence of the renewable resources, AC/DC loads, and EVs that are modeled using stochastic optimization, an applicable risk ...
Nourollahi, Ramin +4 more
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Hybrid VSI Compensator for AC/DC Microgrid
2019 IEEE Region 10 Symposium (TENSYMP), 2019Microgrids are frequently subjected to power quality issues due to intermittency of renewable resources and nonlinear power electronic components connected in the system. These issues are rectified with the help of different categories of compensators such as dynamic voltage restorer, active filter, notch filter, static VAR compensators etc ...
Ginnes K John, M R Sindhu, TNP Nambiar
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Dynamic Phasor Modeling of a Hybrid AC/DC Microgrid
2017The dynamic phasor (DP) model of a hybrid AC/DC microgird is proposed in this paper. This hybrid microgrid consists of an interlinking converter (ILC), wind turbine (WT) system, photovoltaic (PV) system and energy storage (ES) system, and can operate under either grid-connected mode or autonomous mode.
Jin Xu, Keyou Wang, Guojie Li
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