Results 21 to 30 of about 7,248 (211)
Results in Engineering, 2023 The integration of distributed energy resources (DERs) in electric distribution networks originates the Active Distribution Networks (ADNs). The presence of DERs introduces challenges to conventional protection schemes due to bidirectional power flows ...
J. Orozco-Álvarez +2 more
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An Energy-Balancing Perspective of Interconnection and Damping Assignment Control of Nonlinear Systems [PDF]
, 2003 Stabilization of nonlinear feedback passive systems is achieved assigning a storage function with a minimum at the desired equilibrium. For physical systems a natural candidate storage function is the difference between the stored and the supplied ...
Jeltsema, Dimitri, +2 more
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Modified Impedance-Based OOS Protection Based on On-Line Thévenin Equivalent Estimation
Iranian Journal of Electrical and Electronic Engineering, 2021 In this paper, a novel approach based on the Thévenin tracing is presented to modified conventional impedance-based out-of-step (OOS) protection. In conventional approach, the OOS detection is done by measuring positive sequence impedance.
S. R. Hosseini +2 more
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EAI Endorsed Transactions on Energy Web, 2022 Voltage stability assessments, made so far on the Ethiopian electric power system (EEP), are limited both in number and in methodology. Here, in this paper the static voltage stability of the Ethiopian power system is investigated using an index called ...
Ahadu Hilawie, Fekadu Shewarega
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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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The most economical power factor correction according to tariff structures in Egypt [PDF]
, 2005 This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted.
Aziz, MMA, Zobaa, AF
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IEEE Access, 2023 Electric distribution systems are going through a major upgrade with increasing penetration of distributed energy resources (DERs) and impacting transmission system operational analysis.
Syed Muhammad Hur Rizvi +1 more
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Analysis of equivalent circuit models in lithium-ion batteries
AIP Advances, 2018 This study investigates lithium-ion (Li-ion) battery discharge at a constant current by comparing equivalent circuit simulation data with experimental data. The simulations employ Thévenin equivalent circuit models consisting of a resistance, capacitance,
Hyun Woo You +4 more
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Phasor-Based Assessment for Harmonic Sources in Distribution Networks [PDF]
, 2020 Phasor-based interdependencies of multiple harmonic sources, especially Distributed Energy Resources, on distribution networks are analyzed in this paper. A new index, Phasor Harmonic Index (IPH), is proposed by the authors.
Arghandeh, R. +5 more
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Bridge Average Value Model of Modular Multilevel Converter
Zhongguo dianli, 2019 The speed-up simulation model of modular multilevel converter (MMC) is the basis for the research of voltage-source converter high-voltage direct-current (VSC-HVDC) system. Among many models, the bridge Thevenin model of MMC is the most widely used.
Ning CHEN, Lei QI, Meng BAO, Xiang CUI
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