Results 241 to 250 of about 1,796,114 (291)
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IEEE Transactions on Power Systems, 2005
In this paper, a continuation three-phase power flow (CTPFlow) approach in polar coordinates, which can be used to analyze voltage stability of unbalanced three-phase power systems, is proposed. Using CTPFlow, the PV curves of unbalanced three-phase power systems can be obtained.
Xiao-Ping Zhang, Ping Ju
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In this paper, a continuation three-phase power flow (CTPFlow) approach in polar coordinates, which can be used to analyze voltage stability of unbalanced three-phase power systems, is proposed. Using CTPFlow, the PV curves of unbalanced three-phase power systems can be obtained.
Xiao-Ping Zhang, Ping Ju
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Improved Three-Phase Power-Flow Methods Using Sequence Components
IEEE Transactions on Power Systems, 2005The paper presents the formulation and the solution of the three-phase power-flow problem using sequence components. An improved sequence component transformer model and a decoupled sequence line model were used. As a result, the three sequence admittance matrices are decoupled with three-phase power system features in sequence components. The sequence
Mamdouh Abdel-Akher
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Three-phase converter models for unbalanced radial power-flow studies
IEEE Transactions on Power Systems, 2002This paper presents a power converter model intended for both balanced and unbalanced radial power flow studies. A three-phase steady state model of a power converter (ac/dc-dc/ac) composed of a diode rectifier, a loss-less dc link, and a pulse-width-modulated inverter is presented.
R. Stoicescu +4 more
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A Three-Phase Optimal Power-Flow Algorithm to Mitigate Voltage Unbalance
IEEE Transactions on Power Delivery, 2013This paper describes a new methodology for three-phase electrical system optimization, in which the phase unbalances are to be taken into account. A formulation for the three-phase optimal power-flow solution was developed using the primal-dual interior point method and the three-phase current injection method in rectangular coordinates.
Leandro Araujo +2 more
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A Linear Three-Phase Load Flow for Power Distribution Systems
IEEE Transactions on Power Systems, 2016This letter proposes a linear load flow for three-phase power distribution systems. Balanced and unbalanced operation are considered as well as the ZIP models of the loads. The methodology does not require any assumption related to the $R/X$ ratio. Despite its simplicity, it is very accurate compared to the conventional back-forward sweep algorithm.
Alejandro Garces
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Three-Phase Distribution Power Flow Calculation for Loop-Based Microgrids
IEEE Transactions on Power Systems, 2018This paper introduces an efficient method for calculating the three-phase power flow in a loop-based microgrid. The proposed method incorporates the conventional Newton–Raphson (NR) iterative approach in a backward/forward sweep (BFS) algorithm for power distribution network analyses.
Mohammad Shahidehpour, Yiyun Yao
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Computation, 2021 The power flow problem in three-phase unbalanced distribution networks is addressed in this research using a derivative-free numerical method based on the upper-triangular matrix.
Oscar Danilo Montoya Giraldo +2 more
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Three-phase optimal harmonic power flow
IEE Proceedings - Generation, Transmission and Distribution, 1996A new three-phase optimal-harmonic-power-flow (TOHPF) method is proposed. It is designed to minimise the three-phase power losses and the total three-phase harmonic voltage distortion while satisfying the three-phase-power-flow equations, three-phase harmonic-power-flow equations, three-phase security constraints, and the three-phase harmonic standard ...
Y.-Y. Hong, Y.-T. Chen
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Three-phase fast decoupled power flow
PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376), 2003This paper presents power flow methods for the solution of unbalanced and balanced three-phase distribution systems. The best existing methods for solving three-phase power flow are tested and the results discussed. The fast decoupled methods and the current injection Newton work for radial and meshed networks, and the matrices (Jacobian) remain ...
I.F.E.D. Denis, A. Padilha
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