Steady-state and transient characteristics on three-phase cables

2021 ◽  
pp. 217-327
Keyword(s):  
Steady State ◽  
Transient Characteristics ◽  
Three Phase

Steady-state modelling method for matrix-reactance frequency converter with boost topology

2011 ◽  
Vol 60 (2) ◽  
pp. 137-148
Author(s):  
Igor Korotyeyev ◽  
Beata Zięba
Keyword(s):  
Fourier Series ◽  
Steady State ◽  
Differential Equations ◽  
Numerical Method ◽  
Frequency Converter ◽  
Double Fourier Series ◽  
Galerkin’S Method ◽  
Galerkin's Method ◽  
Modelling Method ◽  
Three Phase

Steady-state modelling method for matrix-reactance frequency converter with boost topologyThis paper presents a method intended for calculation of steady-state processes in AC/AC three-phase converters that are described by nonstationary periodical differential equations. The method is based on the extension of nonstationary differential equations and the use of Galerkin's method. The results of calculations are presented in the form of a double Fourier series. As an example, a three-phase matrix-reactance frequency converter (MRFC) with boost topology is considered and the results of computation are compared with a numerical method.

Power Flow Calculation Realization in Software for Grids with Four-Phase Power Lines

2014 ◽  
Vol 698 ◽  
pp. 694-698 ◽  
Author(s):  
Dmitry I. Bliznyuk ◽  
Pavel Y. Bannykh ◽  
Alexandra I. Khalyasmaa
Keyword(s):  
Steady State ◽  
Power Flow ◽  
Calculation Model ◽  
Power Lines ◽  
Power Flow Calculation ◽  
Steady State Analysis ◽  
Flow Calculation ◽  
Analysis Methods ◽  
Electrical Grids ◽  
Three Phase

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.

scholarly journals Three-Phase Steady-State Model of Doubly Fed Induction Generator Considering Various Rotor Speeds

IEEE Access ◽  
2016 ◽  
Vol 4 ◽  
pp. 9479-9488 ◽  
Author(s):  
Yuntao Ju ◽  
Fuchao Ge ◽  
Wenchuan Wu ◽  
Yi Lin ◽  
Jing Wang
Keyword(s):  
Steady State ◽  
State Model ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Three Phase ◽  
Steady State Model ◽  
Doubly Fed

Circuit Representation of Three-Phase Bridge Convertors

1988 ◽  
Vol 25 (4) ◽  
pp. 351-360 ◽  
Author(s):  
D. B. Watson
Keyword(s):  
Motor Control ◽  
Steady State ◽  
State Power ◽  
Circuit Model ◽  
Variable Frequency ◽  
Circuit Representation ◽  
Three Phase ◽  
Model Circuit

The paper shows that the three-phase bridge convertor can be represented in the steady state by a circuit model. Circuit models are deduced for naturally commutated and forced commutated convertors. Steady state power rectification, inversion, the d.c. link, and variable frequency motor control are described.

scholarly journals Muscle: A Three Phase System

1959 ◽  
Vol 43 (1) ◽  
pp. 55-79 ◽  
Author(s):  
Shirley E. Simon ◽  
B. M. Johnstone ◽  
K. H. Shankly ◽  
F. H. Shaw
Keyword(s):  
Steady State ◽  
Sartorius Muscle ◽  
Phase System ◽  
Extracellular Material ◽  
Foreign Ions ◽  
Three Phase ◽  
Na Efflux ◽  
Muscle Water ◽  
Toad Bufo ◽  
Normal Controls

The partition of Li+, Br-, and I- across the membrane of the sartorius muscle of the toad Bufo marinus has been investigated both at the steady state and with kinetic methods. Li+ was found to have access to an amount of muscle water similar to that of Na+. Br- and I- could be regarded as being interchangeable with cellular Cl-. None of the foreign ions caused significant losses of cellular K+. Li+ efflux from the cell was slower in muscles which were equilibrated for long periods in Li+ than in short equilibrated muscles. Na+ efflux from Li+-treated muscles was similar in rate to normal controls, but the amount of Na+ in the slow fraction was increased by Li+. I- efflux was extremely rapid, and it was not possible to differentiate kinetically between intra- and extracellular material. These results have been found to be consistent with the hypothesis of a three phase system for muscle.

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