Abstract
Currently, there is an active use of electric transport, which is used on farms, performing a number of technological processes for keeping animals and growing plants. There is a need to change the technical characteristics of such transport, in particular, saving the charge of the traction battery using the run-out mode. (Research purpose) The research purpose is studying the possibilities and problems of the run-out mode used on a mobile agricultural vehicle, which uses an electric tractor T-16. (Materials and methods) Installed the main components of the tractor T-16 with electric drive: chassis; traction battery; control charger; electric drive, including multi-speed gearboxes. (Results and discussion) We developed a circuit for connecting the motor to a frequency converter with a run-out mode and conducted experimental studies. (Conclusions) It was found out that in order to ensure the idling mode of a mobile vehicle when the engine is disconnected from the frequency converter, it is necessary to control the frequency difference between the engine and the frequency converter, since a large difference can lead to significant overloads and the transfer of the frequency converter to error mode. Experimental studies of the dependence of starting currents on the frequency difference between the converter and the electric motor were carried out. Graphs were constructed that showed that based on the experiments conducted when using an 11 kilowatt-per-hour motor, the current values obtained would be 4 times greater, which would overload the frequency converter. They have shown that without additional methods and techniques, such a regime is dangerous to use and is not recommended. A variant of reducing the starting currents has been identified - this is the installation of an additional inductance between the motor and the frequency converter, with its correct selection according to the formula, the starting current can be reduced to the maximum permissible.
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