ELECTROMAGNETIC CURRENT TRANSDUCER FOR CONTROL OF REACTIVE POWER CONSUMPTION OF AN ASYNCHRONOUS MOTOR FROM A SINGLE-PHASE SUPPLY OF RENEWABLE ENERGY SOURCE
Аннотация
In the world, the demand for electricity and its quality is increasing, in order to further increase the share of renewable energy sources, the reactive power that generates the magnetic field and current in asynchronous motors, which consumes more than 60% of the electricity generated from them and provided by them The research of electromagnetic current transformers, which allows controlling the consumption, evaluating the asymmetry and nonsinusoidal indicators of reactive power and energy, remotely sensing and measuring these quantities with appropriate devices, and converting them into a standard signal, is considered an urgent issue . The research results of the construction principles of a new series of electromagnetic current converters and the algorithm of forming their cumulative and distributed parameter modals for controlling and evaluating the non-symmetric and non-sinusoidal indicators of the reactive power consumed by widely used asynchronous motors are presented. Changing the quality indicators of electric energy into signal form when connecting one and three-phase asynchronous motors to renewable energy sources in the form of an off-line and on-line system, in which the consumed electric energy is transferred to the physical and technical processes taking place in the primary generator. The results of the studies conducted based on the modeling of the effects of signal change magnitude and parameters, based on the structure of the change device are presented.