Results 31 to 40 of about 178,149 (329)
Energies, 2023 The extensive deployment of Modular Multilevel Converters (MMCs) in AC/DC systems can lead to complex resonance issues. Impedance modeling forms the foundation for analyzing the stability of interconnected system.
Zheng Yan, Jianyuan Xu
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Zhongguo dianliImpedance-based modeling and analysis method is currently one of the effective tools to analyze and solve the problem of renewable energy grid-connected broadband oscillation.
Muchi ZHAO +5 more
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Harmonic Resonance Mechanisms and Influencing Factors of Distributed Energy Grid-Connected Systems
World Electric Vehicle JournalWith the rapid development of global energy transformation and new power system, ensuring the stability of distributed energy grid connections is the key to maintaining the reliable operation of the whole power system.
Minrui Xu +5 more
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Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]
, 2014 Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA +3 more
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IEEE Access, 2022 The voltage source converters (VSCs) are used to interface and control the renewable energy resources that are integrated into the power grids. However, a weak grid connection raises a stability problem for grid synchronization of the grid-feeding ...
Mohsen Eskandari +3 more
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A novel approach for voltage sag representation in a chemical industry: A case study
Engineering Reports, 2020 Voltage sag is a major Power Quality issue which may occur at every possible load point. In the industrial sector, its impact is particularly prominent at it is directly related to financial losses.
Chinmaya Behera +2 more
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A transient boundary element method model of Schroeder diffuser scattering using well mouth impedance [PDF]
, 2008 Room acoustic diffusers can be used to treat critical listening environments to improve sound quality. One popular class is Schroeder diffusers, which comprise wells of varying depth separated by thin fins.
Cox, TJ, Hargreaves, JA
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Coupling Impedance Modeling Analysis of Grid-Connected Inverters Under Three-Phase Voltage Unbalance
EnergiesUnder the condition of asymmetric system voltage, grid-connected inverters exhibit obvious sequence impedance frequency coupling characteristics, which can easily lead to resonance and the misoperation of protection and control devices.
Yang Liu +5 more
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The development of the impedance measured by distance relay [PDF]
, 2015 This paper explains the possibility of implementation of a model of a quadrilateral characteristic type of distance relay with the zones using MATLAB/SIMULINK package. SimPowerSystem was used to present modeling of distance relay.
Wannous, K.
core
Absolute electrical impedance tomography (aEIT) guided ventilation therapy in critical care patients: simulations and future trends [PDF]
, 2010 Thoracic electrical impedance tomography (EIT) is a noninvasive, radiation-free monitoring technique whose aim is to reconstruct a cross-sectional image of the internal spatial distribution of conductivity from electrical measurements made by injecting ...
Brown, B.H. +5 more
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