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Information × Registration Number 0220U000587, 0115U002805 , R & D reports Title Development of new methods of recreation of parameters of electric energy and principles of construction of high-accuracy facilities of measuring for the necessities of power branch of economy popup.stage_title Head Tesyk Iurii, Registration Date 25-05-2020 Organization Institute of electrodinamics National academy of sciences of Ukraine popup.description2 The review of methods and modern facilities of electric power parameters recreation is conducted and the errors of measuring of the active and reactive power caused by the phase angle of entrance measuring current transformers are investigated. It is shown that exactness of recreation of physical sizes in an equal degree depends on metrology characteristics of standards, channels of their amplification path and transformation. The analysis of errors of the complex multivectorial systems of voltages and currents and their influence on exactness of power parameters recreation are conducted. The mathematical models of digital measuring converters are created. The methods of correction of additive, multiplicative, angular errors of measuring of electric power parameters are developed and investigated. A high-voltage DAC mathematical model, that allows on the stage of developing of amplifires on the basis of high-voltage DAC to expect the expected level of nonlinear distortions, is created . The mathematical model for creation high-voltage DAC with distortions of output signal at the level of 0,05% with the set exactness of voltage amplitude recreation was offered. The computer model of amplifier is first developed on the basis of high-voltage DAC, the mathematical models of really existent components are used in that. Тheoretical calculations are confirmed by the conducted design that allows adjusting and improvement of characteristics of sceems on the stage of their constructing. There are next devices, which on the basis of results of the theoretical researches conducted in this work was developed and applied in industry: - the multiphase generator-calibrator ДНСТ- 3, that before was not made in Ukraine, - the measuring transformer of current of class of exactness 0,001, - the primary standard of power and electric energy of class of exactness 0,01. Product Description popup.authors Карасінський Олег Леонович Пронзелева Станіслава Юріївна Тесик Юрій Федорович popup.nrat_date 2020-10-01 Close