DETERMINATION OF STATOR RESISTANCE OF INDUCTION MOTORS ON STARTING CHARACTERISTICS
Journal Title: Електромеханічні і енергозберігаючі системи - Year 2017, Vol 1, Issue 37
Abstract
Purpose. Determination of a torque of the asynchronous engine is important for increase in indices of use of the electric power. This task can be solved on condition of reliable identification of value of the active resistance of the stator of the asynchronous engine. Methodology. The method based on measurement and processing of phase tension and currents in the course of start of the asynchronous engine is by the most acceptable method for determination of the active resistance of the stator. Results. Operability of the offered method on mathematical model is proved. Accuracy of determination of active resistance of the stator by results of mathematical modeling is equal to 0.26 %. The possibility of substitution of the ideal integrating link by the equivalent aperiodic link with an element of transport delay in case of integration of sine signals is probed. The possibility of substitution of the ideal integrating link by the equivalent aperiodic link with an element of transport delay in case of integration of sine signals was investigated. It is shown that the active resistance of the stator can be calculated as the relation of a constant component of integrated function of voltage to a constant component of integrated function of current. Determination of a constant component of an integral signal of power voltage comes down to searching of amplitude and initial phase of integration of a signal of voltage. Definition of a constant component of an integrated signal of current of the stator comes down to search of parameters of an aperiodic component of starting current of the stator. Experimental research of the offered method of determination of active resistance of the stator in laboratory conditions are executed. Originality. Accuracy of determination of active resistance of the stator by results of mathematical modeling is equal to 7.8 %. Practical value. Accuracy of determination of active resistance can be increased by a preliminary filtration of the measured signals of current and voltage, specification of theoretical ideas of a form of an aperiodic component of current of the stator, increase in accuracy of determination of parameters of an aperiodic component of current of the stator on experimental data.
Authors and Affiliations
Olexander Pozigun, Valerii Kostiantynovych Tytiuk, Oleksii Petrovych Chornyi
Keywords
Related Articles
- EP ID EP660442
- DOI -
- Views 131
- Downloads 0
ENERGY EFFECTIVE CONTROL BY HEAT SUPPLY PROCESS MUNICIPAL BUILDINGS
Purpose. The substantiation of the method of energy efficient management of the heat supply of multistory build-ings to obtain the established norms of the classes of energy efficiency, with the observance of comfortable...
CONTROL AN ELECTROMECHANICAL SYSTEM IN THE SLIDING MODE WITH A GIVEN MODEL AND NONLINEAR FUZZY CONTROLLER
Purpose. The nonlinear fuzzy controller modeling that implements slip modes and the investigation of an electromechanical system with compensation of perturbing influences. Methodology. The optimal control methods theory...
TO THE PROBLEM OF ELECTRICALLY-ENERGY COMPETITIVENESS OF ENTERPRISES OF THE ZALIZREDNOE DEPARTMENT OF UKRAINE
Purpose. The conducted studies aimed at forming the formation of integrated indicators of the electricity competitiveness of mining enterprises, in particular, iron ore industry in general. Methodology. An effective meth...
INVESTIGATION OF DISTRIBUTION OF THE MAGNETIC FIELD OF THE ASYNCHRONOUS MACHINE IN CONDITIONS OF EDUCATIONAL AND MANUFACTURING LABORATORIES
Purpose. Investigation of distribution the induction magnetic field around asynchronous machines in the conditions of educational and production laboratories to determine the safe placement of workplace staffs, as well...
AN ANALYSIS OF THE FACTORS WHICH INFLUENCE ON THE ENERGY EFFICIENCY OF POWER SUPPLY SYSTEMS
Purpose. The concern of the research is to analyze the factors of increasing the energy efficiency of production, rejection and distribution of electric energy. These are such components as reduction of technological los...