Abstract
The article considers one of the ways to solve the national economic problem of saving electricity during the operation of three-phase asynchronous electric motors used to drive working machines of technological lines. It is shown that all existing systems of energy-efficient control of asynchronous electric drives do not take into account the mechanical characteristic type of working machines, which affects the control accuracy based on electric power consumption minimum. The process of electromechanical energy transformation of asynchronous electric motors, which are used to drive working machines with various types of mechanical characteristics and operate under load conditions, is analyzed from the point of view of energy saving. Equations of energy-saving control of an asynchronous electric motor of a drive of various working machines are obtained. The equations allow to control asynchronous electric drives by an applied voltage and taking into account the minimum losses of active power in an electric motor. Also, the results of analytical and experimental studies are presented. The results showed good convergence between calculated and experimental data obtained with the help of proposed equations, the energy-saving control. These equations can be used in the design of energy-saving control devices.
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Vovk, O., Kvitka, S., Halko, S., Strebkov, O. (2019). Energy-Saving Control of Asynchronous Electric Motors for Driving Working Machines. In: Nadykto, V. (eds) Modern Development Paths of Agricultural Production. Springer, Cham. https://doi.org/10.1007/978-3-030-14918-5_43
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DOI: https://doi.org/10.1007/978-3-030-14918-5_43
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