Results 11 to 20 of about 44,267 (264)
Application of Improved Droop Control Based on Grid Impedance in Photovoltaic Grid-Connected Power Generation system [PDF]
E3S Web of Conferences, 2021 When the power grid impedance mutates, the output power of the grid-connected photovoltaic power generation system controlled by drooping will become very unstable.
Hao Xu Hao, Fang Wang, Cheng Liang Zhi
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Adaptive Grid Impedance Shaping Approach Applied for Grid-Forming Power Converters [PDF]
IEEE Access, 2022 This paper proposes an adaptive grid impedance shaping approach, implemented through a variable structure virtual impedance control strategy (VS-VIS), to improve the power flow control of grid-forming power converters (GF-PC).
Ricardo Lucio de Araujo Ribeiro +3 more
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An Online Event-Based Grid Impedance Estimation Technique Using Grid-Connected Inverters [PDF]
IEEE Transactions on Power Electronics, 2021 An increasing intake of grid-connected inverters could change the characteristics of low voltage networks including the equivalent grid impedance seen by each inverter at its point of common coupling.
Nabil Mohammed +2 more
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EnergiesThis paper presents a current control design for stabilizing an inductive-capacitive-inductive (LCL)-filtered grid-connected inverter (GCI) system under uncertain grid impedance and distorted grid environment.
Sung-Dong Kim +3 more
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电力工程技术In weak grid, a multi-inverter grid-connected system may be simultaneously affected by large grid impedance and background harmonics. The interaction between inverter and grid is enhanced by the large grid impedance, resulting in resonance problems ...
ZHANG Shicong +4 more
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IEEE Access, 2022 Grid impedance plays a significant role in the performance and design considerations of nonlinear devices like Variable Frequency Drive (VFD). VFD operates across domestic, industrial, and residential applications under different grid configurations and ...
Ramesh Pandurangan +2 more
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IEEE Access, 2021 With the increasing applications of grid-connected voltage source converters, it is important to analyze the impedance characteristic of the grid-connected system to implement the stability analysis of the grid connection operation.
Heng Nian +5 more
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Energies, 2021 In the series-compensated grid-connected system (SCGCS), there is an impedance interaction between the inverter impedance and the grid impedance that is prone to cause resonance in the SCGCS.
Haining Wang +7 more
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IET Renewable Power Generation, 2021 Grid‐connected inverter have been extensively used in the renewable energy grid‐connect systems, such as solar and wind. Interaction between the grid and the inverter may generate harmonic resonances that lead to reduced power quality and even ...
Junliang Liu +3 more
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Modal Identification and Analysis of Photovoltaic Converter Based on Random Subspace
发电技术, 2021 A large number of photovoltaic grid-connection brings many harmonic resonance problems to the power grid. A joint model including photovoltaic converter and grid equivalent impedance was established for the photovoltaic converter resonance problem. The s-
Jianhua ZHU, Zhenqing LI, Lichang XU
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