Results 11 to 20 of about 1,100,817 (204)
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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Analysis of integration of multi-terminal HVDC network to weak grids [PDF]
The Journal of Engineering, 2019 In this study, the integration of multi-terminal high voltage direct current (HVDC) systems to weak power grids is analysed under different grid strengths and control methods.
Kamyab Givaki +4 more
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Stability assessment of inverter‐based renewable energy sources integrated to weak grids
IET Energy Systems IntegrationThe worldwide electricity network is undergoing a crucial transformation, shifting from traditional synchronous generators to inverter‐based renewable energy sources (IRESs).
M. I. Saleem, S. Saha, U. Izhar, L. Ang
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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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Low-frequency converter-driven oscillations in weak grids : explanation and damping improvement [PDF]
, 2021 Low-frequency oscillations have been reported in several weak-grids-connected voltage-source-converter(VSC) systems. Although efforts have been devoted to understand the parametric and sensitivity impact of the VSC controller gains, a general formulation
Egea Àlvarez, Agustí +9 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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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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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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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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