Results 131 to 140 of about 471 (171)
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Radioelectronics and Communications Systems
The paper demonstrates the advantages of using the Thevenin–Barbi three-element circuit equivalent in energy studies of DC circuits. The optimal and limiting values of the load parameters of the Thevenin–Barbi circuit equivalent at a given range of the efficiency changes are determined, which allows us to study the energy characteristics of complex DC ...
Mykhailo Artemenko, Vasyl Chopyk
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The paper demonstrates the advantages of using the Thevenin–Barbi three-element circuit equivalent in energy studies of DC circuits. The optimal and limiting values of the load parameters of the Thevenin–Barbi circuit equivalent at a given range of the efficiency changes are determined, which allows us to study the energy characteristics of complex DC ...
Mykhailo Artemenko, Vasyl Chopyk
exaly +3 more sources
A unified and efficient approach for determining Thevenin (Norton) equivalent circuits
IEEE Transactions on Education, 1989A unified and efficient approach for the determination of the Thevenin (Norton) equivalent circuit is presented, in which two parameters of the Thevenin (Norton) equivalent circuit can be obtained simultaneously and systematically, and it is not required to set all independent sources to zero. >
L.-M. Jin, S.-P. Chan
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Thevenin equivalent circuit for the study of high photovoltaic penetration in distribution grids
IEEE PES ISGT Europe 2013, 2013The electricity grid is unidirectional operating in a passive way and consequently it is not yet ready to accept high penetration of renewable energy sources (RES). Further research is required to assess the impact of distributed Photovoltaic (PV) generation on power quality and establish the necessary measures for the restructuring of the electricity ...
George Georghiou +2 more
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Thevenin equivalent circuit parameter estimation for the PCC upstream system
2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2015The Thevenin equivalent circuit parameters for the upstream system seen at a load bus plays an important role in the power system operation and planning. In order to accurately estimate the Thevenin equivalent parameters for the upstream supply system, an estimation method not requiring synchronized measurement is used in this paper.
Yuanyuan Sun
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Modeling of voltage source converters in microgrids using equivalent thevenin circuit
2018 9th Annual Power Electronics, Drives Systems and Technologies Conference (PEDSTC), 2018In this paper, a new modelling approach based on the equivalent Thevenin circuit is proposed for voltage source converters in islanded microgrids. The proposed method approximate the entire network connected to the voltage source converter with an equivalent Thevenin circuit. The equivalent circuit is first considered with a non-dynamic impedance. This
Yousef Khayat +2 more
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International Journal of Electrical Engineering and Education, 2005
This paper presents two powerful pedagogical approaches for finding Thevenin and Norton equivalent circuits for d.c. linear electric circuits. These approaches are based solely on mesh analysis (for planar circuits) and on nodal analysis (for planar or nonplanar circuits) and simultaneously provide all equivalent circuit parameters from one circuit.
George Chatzarakis, Spiros Livieratos
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This paper presents two powerful pedagogical approaches for finding Thevenin and Norton equivalent circuits for d.c. linear electric circuits. These approaches are based solely on mesh analysis (for planar circuits) and on nodal analysis (for planar or nonplanar circuits) and simultaneously provide all equivalent circuit parameters from one circuit.
George Chatzarakis, Spiros Livieratos
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2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 2015
This paper introduce a new approach, and associated algorithms, for the efficient approximation of a PV model by using dependent Thevenin equivalent circuit. The short linear combination of exponential function is used for constructing a mathematical function that is used to express the dependent Thevenin voltage source of a PV panel.
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This paper introduce a new approach, and associated algorithms, for the efficient approximation of a PV model by using dependent Thevenin equivalent circuit. The short linear combination of exponential function is used for constructing a mathematical function that is used to express the dependent Thevenin voltage source of a PV panel.
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The Thevenin—Norton Equivalent Circuit
IETE Journal of Education, 2006The Thevenin-Norton (TN) equivalent of a one-port network is a combination of the Thevenin and Norton equivalents and contains both a voltage source and a current source. The concept of the TN equivalent is explained and its usefulness illustrated with examples.
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On Thevenin's and Norton's Equivalent Circuits
IEEE Transactions on Education, 1982This paper provides a good look at the concept of equivalence in general and at Thevenin's and Norton's theorems in particular. The ain is to investigate simple, general, and comprehensive ways to present and prove these theorems. It is shown that linearity and the absence of external coupling should not be conditions for Thevenin's and Norton's ...
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Circuit diagnosis and Thevenin equivalents
Proceedings of the IEEE, 1982Roytman and Swamy have used the properties of orthonormal excitations to establish one method of circuit diagnosis. In this letter the method is extended to determine the driving-point or Thevenin equivalent impedance for each node pair.
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