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Three-phase newton raphson power flow considering microgeneration
2013 IEEE PES Conference on Innovative Smart Grid Technologies (ISGT Latin America), 2013This paper presents results of investigations on issues related to inclusion of microgeneration and micro-grids in distribution systems and the difficulties imposed on load flow programs. Aspects of modeling using current injection in rectangular coordinates and solution by Newton-Raphson's method are presented.
V. Zimmer +3 more
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Multi-period three-phase unbalanced optimal power flow
IEEE PES Innovative Smart Grid Technologies, Europe, 2014Unbalanced three-phase distribution networks are undergoing significant changes with the advent of modern distributed energy resources (DER). These DER come in the form of both load and generation, such as electric vehicles, heat pumps, photovoltaics and micro wind turbines, and have the potential to drastically modify customers' behaviours and needs ...
Alison O'Connell, Andrew Keane
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Unified power flow controller models for three-phase power flow analysis
Electrical Engineering, 2005In this paper, three models of the unified power flow controller (UPFC) suitable for three-phase power flow analysis in polar coordinates are presented. The symmetrical components control model can be used to control the positive-sequence voltage of the shunt bus and the total three-phase active and reactive power flows of the transmission line while ...
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Three-phase fast decoupled power flow for distribution networks
IEE Proceedings - Generation, Transmission and Distribution, 1996Power system single-phase models assume that generation, transmission and distribution systems are perfectly balanced. The great appeal of this type of model is its simplicity, for all the calculations become quite simple, when compared with the three-phase model, and the results obtained are well suited for most applications. There are cases, however,
A.V. Garcia, M.G. Zago
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Three-phase power and harmonic flow
1998In this chapter, a three-phase power-flow and harmonic-converter model are combined and solved using both the sequential and unified Newton's methods. Interaction between the three-phase power flow and a three-phase harmonic converter model has been solved using both decoupled and full Newton methods. The decoupled method displays good convergence if a
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A compensation technique for unsymmetrical three-phase power flow
2016 International Symposium on Industrial Electronics (INDEL), 2016This paper presents the implementation details of a power flow method for unbalanced three-phase distribution networks. The proposed technique utilizes the current injection (CI) method for power flow calculation and considers the modeling of unbalanced loads, load tap-changing (LTC) transformers, and shunts capacitors.
Indira Huseinagic +2 more
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Robust Data-driven Linearization for Distribution Three-phase Power Flow
2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2), 2020It is an extra heavy burden to maintain the distribution network model since of its frequent changing and large scale. In reality, the network model may involve significant parameter errors, which makes the model not applicable. This paper presents a robust data-driven approach to linearize the three-phase power flow.
Jiaqi Chen +5 more
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Modeling of FACTS in Three-Phase Power Flow and Three-Phase OPF Analysis
2012Three-phase power flow calculations are important tools to compute the realistic system operation states and evaluate the control performance of various control devices such as transformer, synchronous machines and FACTS-devices, particularly because (a) there are unbalances of three-phase transmission lines in high voltage transmission networks; (b ...
Xiao-Ping Zhang +2 more
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Three phase current iteration power flow method using fortescue transformations
2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe), 2012Analysis of power systems is normally executed using either phase coordinates or symmetrical components. In most cases, the decision on the selection is based on the type of the network and its loading. Most of the approaches use symmetrical components only in cases of a balanced network with a balanced loading for the calculation of the electrical ...
I. Dzafic, H.-T. Neisius, S. Henselmeyer
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Three-Phase Power Flow of Less Ring Distribution Network
Applied Mechanics and Materials, 2014In the planning and operation of distribution network, flow calculation and optimal flow is the hot issue for many experts and scholars to study. In network reconfiguration, service restoration and capacitor configuration, it needs hundreds even thousands times of power flow calculation.
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