DETERMINATION OF ELECTROMAGNETIC PARAMETERS AND PHASE RELATIONS IN TURBO-GENERATORS BY THE AUTOMATED CALCULATION OF THE MAGNETIC FIELD IN THE SOFTWARE ENVIRONMENT FEMM
Journal Title: Електротехніка і Електромеханіка - Year 2016, Vol 0, Issue 1
Abstract
The theoretical bases of calculation of electromagnetic quantities and time-phase relationship are presented for the turbo-generators. This is done by numerical calculations of the magnetic field in the software environment package FEMM (Finite Element Method Magnetics). A program which controls calculations and organizes the issuance of the results to a text file is created on the algorithmic language Lua. The program is universal in terms of a turbo-generator models, as well as steady-state modes of their work with a minimum of input data. The exciting current of the rotor and the phase currents of three-phase stator winding in accordance with their initial phase are given for the calculation of the magnetic field. The key function for the analysis of electromagnetic parameters is the calculated angular function of the magnetic flux phase stator winding. The expansion in the harmonic series is carried out and amplitude and initial phase are received for this function. Next, the phase EMF and voltage, phase shifts between all values, active power, electromagnetic torque, the magnetic flux in the gap and other parameters are determined. The presented Lua script is a prototype for a similar calculation software of electric machines of other types.
Authors and Affiliations
V. I. Milykh, N. V. Polyakova
Keywords
Related Articles
- EP ID EP290353
- DOI 10.20998/2074-272X.2016.1.05
- Views 141
- Downloads 0
NEW HYPOTHESIS AND ELECTROPHYSICS NATURE OF ADDITIONAL MECHANISMS OF ORIGIN, ACCUMULATION AND DIVISION OF ELECTRIC CHARGES IN THE ATMOSPHERIC CLOUDS OF EARTH
Purpose. Development of new hypothesis about the possible additional mechanisms of origin, accumulation and division of electric charges in atmospheric clouds, containing shallow dispersible drops of water, shallow parti...
PECULIARITIES OF CALCULATION OF MAGNETIC SYSTEMS WITH SHORT-CIRCUITED SECONDARY WINDINGS IN IN-PLANE FORMULATION
Introduction. A feature of quasi-static calculation of plane electromagnetic fields is unlimited volume occupied by the current. This condition imposes certain requirements on the choice of boundary conditions for solvin...
RESEARCH ON TRANSIENTS AND CHOICE OF OPTIMUM PARAMETERS OF SWITCHING ELEMENTS FOR AN ELECTROMAGNETIC VALVE CONTROL FOR COMBUSTION ENGINE EXHAUST SAMPLING
The article introduces a classical-method-based analysis procedure for transients in the control cascade of an electromagnetic valve for combustion engine exhaust sampling. Analytical expressions for currents and voltage...
FREQUENCY CONTROL IN ELECTRICAL SYSTEM MATHEMATICAL MODELING AND OPERATION CONTROL PROBLEMS
To improve the performance of primary data processing algorithms when determining frequency in problems of mathematical modeling and operation control of electrical systems, it is proposed to represent discrete instantan...
THE ABSORPTION CHARACTERISTICS OF THE PHASE AND ZONE PAPER-IMPREGNATED INSULATION OF POWER CABLE AT DIRECT VOLTAGE
Introduction. The moral and physical deterioration of medium voltage power cables with phase and zone paper-impregnated insulation requires implementation of quality systems and reliable nondestructive electric diagnosti...