Results 11 to 20 of about 1,054,199 (245)
Accurate Distinction of Weak and Strong AC Grids for Emerging Hierarchical-Infeed LCC-UHVDC Systems
CSEE Journal of Power and Energy SystemsDistinction of weak and strong AC grids for emerging hierarchical-infeed LCC-UHVDC systems is important for planning and operation departments. However, accuracy of earlier distinction methods is limited as they were developed by empirical reasoning ...
Hao Xiao, Xianzhong Duan, Yi Zhang
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Sliding Mode Observer-Based Phase-Locking Strategy for Current Source Inverter in Weak Grids
EnergiesThe current source inverter (CSI) has become the main grid-connected interface of distributed generation systems due to its advantages, such as boost capability, current controllability, and short-circuit protection capability.
Yubin Zheng +3 more
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Personal mobile grids with a honeybee inspired resource scheduler [PDF]
, 2010 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The overall aim of the thesis has been to introduce Personal Mobile Grids (PMGrids) as a novel paradigm in grid computing that scales grid infrastructures ...
Kurdi, Heba Abdullataif
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Small-Signal Modelling and Stability Assessment of Phase-Locked Loops in Weak Grids [PDF]
Energies, 2019 This paper proposes a low-complexity small signal model for a 3-leg converter connected to a balanced three-phase, three-wire weak grid and synchronised to this grid using a PLL implemented in a synchronous rotating d-q axis.
Claudio Burgos-Mellado +4 more
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A Systematic Control Design Method with Active Damping Control in Voltage Source Converters
Applied Sciences, 2022 This paper proposes a systematic control design method for active damping control of grid-connected voltage source converters (VSCs). The proposed control method considers the conventional cascaded control loops and improves them by including additional ...
Hosein Gholami-Khesht +3 more
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An improving control strategy for grid -connected current in weak grid [PDF]
E3S Web of Conferences, 2021 The traditional proportional feedforward control strategy can suppress the low order harmonics in the strong power grid, but in the weak power grid environment, the grid impedance will have an adverse impact on the stability of the system, resulting in the proportional feedforward control can not suppress the low order harmonics well. In order to solve
Songyuan Deng, Xia Zhao
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Novel Active Damping Design Based on a Biquad Filter for an LLCL Grid-Tied Inverter
Energies, 2023 LLCL filters for grid-tied inverters have been adopted to get better performance for the harmonics near the switching frequency than commonly used LCL filters. However, the resonant peak caused by a pair of unstable resonance poles of the LLCL filters is
Bin Wang +5 more
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Applied Sciences, 2022 This paper proposed a probabilistic framework that could be used for the sensitivity assessment of grid-connected voltage source converters (VSCs), where uncertainties in the grid short circuit ratio (SCR) and operating point conditions, as well as ...
Hosein Gholami-Khesht +3 more
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IEEE Open Journal of the Industrial Electronics Society, 2021 Power-synchronization control (PSC) is a promising control strategy to improve the stability and performance of voltage-source converters (VSCs) in ultra-weak AC grids.
Jennifer F. Morris +2 more
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Seepage analysis based on weak finite element method
Yantu gongcheng xuebao, 2023 In the design and operation management of hydraulic structures such as dams, gates and embankments, the seepage calculation plays a very important role. The current methods for seepage analysis are mainly based on the general finite element method. It is
HE Zhaokui 1, SU Baoyu 2, SHENG Jinchang 2, LUO Yulong 2
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