Investigation Principles Voltage and Frequency Optimal Control Princeples to Increase Energy Efficiency in Belt Conveyor Systems Under Artificial Load

The electromechanical system of continuous transport of an automated metalworking line using a system of frequency converter with asynchronous electric motor under artificial load is considered. The goal and the task of increasing the energy efficiency of the belt conveyor by using two options for building a control system for regulating voltage and frequency in continuous transport is formulated and confirmation the adequacy of studies carried out earlier on this topic through a numerical experiment are conducted. The first variant provides the leading channel of voltage regulation, while the second variant gives priority to frequency regulation with voltage subordination. The study also examines the impact of fixed and flexible conveyor load conditions on the efficiency of using energy-efficient voltage and frequency regulators. The obtained results show that the fixed load minimizes the energy loss on remagnetization, but is generally less efficient. Flexible load adjustment requires additional losses for partial remagnetization, but during the technological cycle provides a higher level of energy efficiency. Formulated conditions for the use of research results in industry.