An improved three-phase power flow calculation method based on virtual neutral point

The paper is devoted to the problem of power flow calculation and steady state analysis methods adaptation for four-phase electrical grids. These methods are based on developed models of four-phase power lines and phase convering transformers. The basis of research is nodal voltages equations for three-phase, four-phase and mixed (combined by three-and four-phase elements) grids. Algorithm of four-phfase elements parameters automized adaptation for power flow calculation model of "RastrWin" software have been developed.

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Probabilistic optimal power flow calculation method considering sequential features and correlations of multi-uncertain source-load scenarios

Journal of Renewable and Sustainable Energy ◽

10.1063/5.0053687 ◽

2021 ◽

Vol 13 (4) ◽

pp. 045503

Author(s):

Tiantian Qian ◽

Shengchun Yang ◽

Jian Geng ◽

Shenghe Wang

Keyword(s):

Calculation Method ◽

Power Flow ◽

Optimal Power Flow ◽

Power Flow Calculation ◽

Flow Calculation ◽

Optimal Power

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Fast Power Flow Calculation Method for Grid Expansion Planning

2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe) ◽

10.23919/epe.2019.8915469 ◽

2019 ◽

Author(s):

Mirko Wahl ◽

Lukas Hein ◽

Albert Moser

Keyword(s):

Calculation Method ◽

Power Flow ◽

Power Flow Calculation ◽

Flow Calculation ◽

Expansion Planning ◽

Fast Power

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The Optimization of the Location and Capacity of Reactive Power Generation Units, Using a Hybrid Genetic Algorithm Incorporated by the Bus Impedance Power-Flow Calculation Method

Applied Sciences ◽

10.3390/app10031034 ◽

2020 ◽

Vol 10 (3) ◽

pp. 1034

Author(s):

Insu Kim

Keyword(s):

Genetic Algorithm ◽

Power Generation ◽

Calculation Method ◽

Power Flow ◽

Distribution Systems ◽

Optimal Power Flow ◽

Reactive Power ◽

Hybrid Genetic Algorithm ◽

Power Flow Calculation ◽

Flow Calculation

Dynamic and static reactive power resources have become an important means of maintaining the stability and reliability of power system networks. For example, if reactive power is not appropriately compensated for in transmission and distribution systems, the receiving end voltage may fall dramatically, or the load voltage may increase to a level that trips protection devices. However, none of the previous optimal power-flow studies for reactive power generation (RPG) units have optimized the location and capacity of RPG units by the bus impedance matrix power-flow calculation method. Thus, this study proposes a genetic algorithm that optimizes the location and capacity of RPG units, which is implemented by MATLAB. In addition, this study enhances the algorithm by incorporating bus impedance power-flow calculation method into the algorithm. The proposed hybrid algorithm is shown to be valid when applied to well-known IEEE test systems.

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Three-Phase Power Flow of Less Ring Distribution Network

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.484-485.655 ◽

2014 ◽

Vol 484-485 ◽

pp. 655-659

Author(s):

Jing Wen Xu

Keyword(s):

Network Flow ◽

Power Flow ◽

Superposition Principle ◽

Distribution Network ◽

Network Models ◽

Particle Swarm Algorithm ◽

Power Flow Calculation ◽

Flow Calculation ◽

Hybrid Particle ◽

Three Phase

In 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. So it is very important to propose a suitable optimization algorithm. Based on the three-phase model we proposed hybrid particle swarm algorithm to calculate the three-phase power flow. The method uses the superposition principle. The distribution network is divided into two network models, one is the pure radial network without cyclic structure, and another is the pure cyclic network without radiation structure. We do iterative calculation respectively using hybrid particle algorithm, getting the calculation results. The hybrid algorithm is a new reference for the future optimization of power flow calculation in this paper.

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