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2020
The study of load tracing begins with gravity loads and a grid of horizontal elements. The primary elements are called girders, the secondary elements are called beams. Secondary implies that these members have a lower hierarchical standing, they rely on (connect to) the primary members which we call girders. The beams may be long, or they may be short.
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The study of load tracing begins with gravity loads and a grid of horizontal elements. The primary elements are called girders, the secondary elements are called beams. Secondary implies that these members have a lower hierarchical standing, they rely on (connect to) the primary members which we call girders. The beams may be long, or they may be short.
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Unbalanced Multiphase Load-Flow Using a Positive-Sequence Load-Flow Program
IEEE Transactions on Power Systems, 2008Existing commercial load-flow packages have the capability of solving large balanced transmission systems using little computer memory and processing time. Their computation efficiency overcomes the small imprecision caused by the modeling simplifications and assumptions made in both transmission and distributions simulation packages.
J.A. Peralta +2 more
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Load Flow Analysis with Voltage-Sensitive Loads
2008 Joint International Conference on Power System Technology and IEEE Power India Conference, 2008This paper conducts load-flow analysis of a five-bus test system containing voltage sensitive loads. Generalized equations that are suitable for the voltage sensitive loads and applicable to the Newton-Raphson method are developed. Three load flow studies are carried out. In the first study, all loads are assumed as constant power loads.
C. S. Indulkar, K. Ramalingam
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Proceedings of the Institution of Electrical Engineers, 1976
The paper extends the presently available techniques for evaluating the load flow problem probabilistically. It presents two possible formulations of the problem that permit the probability-density curves of the angles, voltages, injected reactive powers and active and reactive power flows to be computed.
R.N. Allan, M.R.G. Al-Shakarchi
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The paper extends the presently available techniques for evaluating the load flow problem probabilistically. It presents two possible formulations of the problem that permit the probability-density curves of the angles, voltages, injected reactive powers and active and reactive power flows to be computed.
R.N. Allan, M.R.G. Al-Shakarchi
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IEEE PES T&D 2010, 2010
The Newton-Raphson method is widely used to solve load flow problems. Traditionally a direct solver is used to solve the linear systems within this method. In this paper we explore the use of an iterative method to solve the linear systems, leading to an inexact Newton-Krylov method.
Reijer Idema +3 more
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The Newton-Raphson method is widely used to solve load flow problems. Traditionally a direct solver is used to solve the linear systems within this method. In this paper we explore the use of an iterative method to solve the linear systems, leading to an inexact Newton-Krylov method.
Reijer Idema +3 more
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2017
The load flow is one of the most fundamental concepts in power system engineering. The basic function of the AVC system is to find out a feasible load flow in the grid, where the voltage profile of the whole system is within the acceptable operational band.
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The load flow is one of the most fundamental concepts in power system engineering. The basic function of the AVC system is to find out a feasible load flow in the grid, where the voltage profile of the whole system is within the acceptable operational band.
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1988
The basic load flow problem corresponds to the situation where, for given load demands at the various load busses and for assumed generation levels at specified supply voltages, one is interested in the overall voltage profile of the power network, real and reactive flows on transmission lines and transformers, bus voltage magnitudes and phase angles ...
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The basic load flow problem corresponds to the situation where, for given load demands at the various load busses and for assumed generation levels at specified supply voltages, one is interested in the overall voltage profile of the power network, real and reactive flows on transmission lines and transformers, bus voltage magnitudes and phase angles ...
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A Generalized Approach to the Load Flow Analysis of AC–DC Hybrid Distribution Systems
IEEE Transactions on Power Systems, 2018Haytham M. A. Ahmed +2 more
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Electric Machines & Power Systems, 1985
ABSTRACT A complex vector approach to the load flow problem with two important and unique contributions is presented. Traditionally, the intermediate calculations for the Newton-Raphson solution of the load flow problem require operations on elements of matrices (as opposed to operating on vectors themselves).
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ABSTRACT A complex vector approach to the load flow problem with two important and unique contributions is presented. Traditionally, the intermediate calculations for the Newton-Raphson solution of the load flow problem require operations on elements of matrices (as opposed to operating on vectors themselves).
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Dependent Discrete Convolution Based Probabilistic Load Flow for the Active Distribution System
IEEE Transactions on Sustainable Energy, 2017Yi Wang +5 more
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