STUDYING THE EFFECT OF AN ADDITIONAL ACTIVE RESISTANCE IN THE FIELD WINDING CIRCUIT ON STARTING CHARACTERISTICS OF SALIENT-POLE SYNCHRONOUS MOTORS
Journal Title: Електротехніка і Електромеханіка - Year 2018, Vol 0, Issue 2
Abstract
On the basis of the developed method for calculating steady-state asynchronous operation modes of salient-pole synchronous motors, a procedure of mathematical modelling of the starting characteristics is proposed. The problem of calculating the steady-state asynchronous mode is solved as a boundary value one for differential equations of motor circuit electrical equilibrium. Algebraization of the system of differential equations is carried out by approximating the equations of state using cubic spline functions on a grid of period nodes, taking into account the periodic law of variation of the coordinates. This results in the changeover from continual values to nodal ones. The starting static characteristics are calculated using the parameter continuation method. The study of the effect of the starting resistance value on the asynchronous characteristics of the motor relied on a mathematical model of the motor taking into consideration real field circuits, saturation and asymmetry of the magnetic path.
Authors and Affiliations
V. S. Malyar, A. V. Malyar
Keywords
Related Articles
- EP ID EP486180
- DOI 10.20998/2074-272X.2018.2.03
- Views 104
- Downloads 0
THE RELEVANCE OF DETERMINING RESPONSIBILITY FOR VIOLATION OF POWER QUALITY IN TERMS OF VOLTAGE FLUCTUATIONS
Purpose. The purpose of work is the analysis of scientific and technical information for determination of expediency of researches on the determined calculations of individual share of suppliers and consumers in violatio...
GUARANTEEING THE TROUBLE-FREE OPERATION OF CAPACITOR BANKS IN POWER-SUPPLY SYSTEMS OF INDUSTRIAL ENTERPRISES
Purpose. The problem of resonance phenomena in power systems of industrial enterprises using capacitor banks for reactive power compensation was detected. Circuit of the capacitor banks tier to downshift main substation...
FEATURES OF SELECTION OF CAPACITOR BANKS IN ELECTRIC NETWORKS WITH INTERHARMONIC SOURCES
Purpose. Development of a methodology for selecting capacitor bank parameters designed to compensate for reactive power, if there are sources of interharmonics in the electrical network. Development of a methodology for...
RESEARCH INTO METHODS OF PIPE END DEMAGNETIZATION UNDER MAIN PIPELINE REPAIR
Efficiency of pipe end demagnetization methods is experimentally investigated to avoid arc magnetism at repair welding jobs on main pipelines. It is found that multi-polar biased static and dynamic demagnetization provid...
CALCULATIONS OF ELECTROMAGNETIC FORCES ACTING ON A THIN FERROMAGNETIC PLATE DURING MAGNETIC-PULSE TREATMENT
The article describes forces acting on a thin ferromagnetic plate under magnetic-pulse treatment. Qualitative and quantitative characteristics are given.