Study of a single-phase electric drive of a milk pump of a milking installation using computer simulation

This work is devoted to the study of the original semiconductor device for starting a singlephase twowinding asynchronous electric motor of a milk pump. Asynchronous electric motors are widely used for the electric drive of machines and units in every sector of agriculture. In most cases, phaseshifting capacitors are used to start and operate a singlephase asynchronous motor. This method of starting has many disadvantages: there is no possibility of controlling the motor speed, large dimensions of the capacitors. In this regard, in complex technological processes, it is advisable to use an adjustable electric drive based on microcontrollers and power semiconductor devices. The purpose of this work is to analyze the possibilities of using a developed semiconductor device in the electric drive of a milk pump using simulation tools. Computer simulation has a number of advantages over other research methods: low cost, speed of the experiment, ability to display simulation results in graphical form. This goal is achieved by creating a simulation model in the Matlab Simulink environment, which allows us to determine the electromechanical characteristics of a singlephase electric motor under various operating modes. The use of simulation modeling methods made it possible to quickly and relatively cheaply carry out all the necessary research at the initial stages of developing a vectoralgorithmic type converter. The simulation model of the device created in the Matlab Simulink environment made it possible to investigate the electromechanical characteristics of the developed electric drive. The most significant results of the work are related to the semiconductor starter that can be used to start and operate a singlephase milk pump motor from a singlephase network.