Kalinov A. The determination of parameters of motors of an alternating current at use of polyharmonical feed of windings of stator

The dissertation is devoted to problem of creation of highly effective methods of determi-nation of parameters of motors of an alternating current at using of components of harmonics of an instant power, derived by one-frequent and different-frequent components of harmonics of a current and voltage with polyharmonical feed of windings of stator. In work were researched the methods of identification of electromagnetic parameters and the methods of definitions of losses in motors of an alternating current; were proved the requirements to the equipment for identification of parameters. The expediency of use of the complete equations of balance of constitutes of the instant power on a source and on an elements of the circuit of replacement for definition of parameters of the electrical ma-chine at use the polyharmonical test signals were proved. The existing circuits of replace-ment of motors of an alternating current were adapted for the analysis of energy processes at polyharmonical feed. In a general aspect the equations of constitutes of instant power on the power source and on elements of the circuits of replacement were deduced, the sys-tems of the equations of balance of constitutes of instant power for definition of parame-ters of the circuits of replacement of motors of an alternating current were composed. The methods of definition of power losses in units of machines of an alternating current in a mode of the non-loaded motor at polyharmonical feed were developed, and also the method of definition of losses in synchronous motors at work in a mode of the compensator were developed. The ways of specification of electromagnetic parameters of machines of an alternating current by realization of additional experiences with use the valve circuits were developed. The questions of construction of the computer-aided system of definition of pa-rameters of machines of an alternating current were considered.