Results 21 to 30 of about 1,941,585 (293)
IEEE Access, 2020 Grid impedance variation and voltage harmonics may cause instability of the grid-connected inverter system and reduce the grid current quality under weak grid.
Liyong Yang +3 more
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IEEE Access, 2021 In this paper, a novel single-loop flatness-based controller (FBC) is proposed to control the grid-side current in a shunt converter connected to a weak grid through an LCL-filter.
Hassan Abdullah Khalid +4 more
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INTEGRATION OF WIND FARMS INTO WEAK AC GRIDS [PDF]
, 2020 Large wind farms are usually located in remote and offshore areas. High voltage transmission systems that have long transmission distances are used to deliver the wind power to main grids. Weak AC grids have high impedance, low short circuit ratio (SCR) and/or low inertia compared to strong AC grids.
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IEEE Access, 2022 This article presents a comprehensive comparison of three control strategies used for grid-following inverters (GFLIs). The first strategy is the phase-locked loop (PLL)-based vector current control (VCC), and the other two PLL-less controllers are the ...
Nabil Mohammed +2 more
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Journal of Modern Power Systems and Clean Energy, 2017 Wind power in China has experienced fast development in recent years. However, areas rich in wind power resources are often far away from loads centers, which leads to weak connection between wind turbines and power grid.
Xinshou Tian +5 more
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On Stability of Voltage Source Inverters in Weak Grids
IEEE Access, 2018 As the number of inverters increases in the power grid, the stability of grid-tied inverters becomes an important concern for the power industry. In particular, a weak grid can lead to voltage fluctuations at the inverter terminals and consequently cause inverter instability.
Aswad Adib +3 more
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Robust Delay Compensation Strategy for LCL-Type Grid-Connected Inverter in Weak Grid
IEEE Access, 2022 Capacitor-current-feedback active damping has been widely adopted in digitally controlled LCL-type grid-connected inverters (GCIs). However, their digital control delay causes the system stability to deteriorate within a negative damping range ...
Xin Ding +4 more
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Operation of STATCOM connected to a weak grid [PDF]
, 2019 The purpose of this thesis was to investigate the operational possibility of MMC STATCOM in weak grid conditions. Weak grid is a power system which has low short circuit capacity, high equivalent grid impedance, high dV/dQ sensitivity and higher volatility to voltage instability.
Chalabov, Roman
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IEEE Access, 2020 Small-signal stability problems often occur when the inverter for renewable energy generation is connected to weak grid. A small-signal transfer function integrated model reflecting the interaction of grid impedance, phase locked-loop (PLL), and current ...
Zhiwei Xie +6 more
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Re-evaluating the Grid: the social life of programs [PDF]
, 2008 This paper discusses programming the Grid in the space between the Grid infrastructure and those using it to conduct scientific research. Rather than looking at any particular grid programming model, we consider the need to address ‘usability’ of ...
De Roure, David, Goble, Carole
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