W artykule przedstawiono zagadnienia doboru metody sterowania i rodzaju napięciowych przemienników częstotliwości dla zapewnienia zsynchronizowanej momentowo pracy dwóch silników napędowych wywrotnicy wagonowej węgla kamiennego. Do napędu wywrotnicy zastosowano silniki indukcyjne klatkowe 2x45kW/400V. Silniki te zasilane są dwoma przemiennikami częstotliwości, gdzie master sterowany jest metodą VVC (Voltage Vector Control), a slave metodą FVC (Flux Vector Control).
In the paper problem of selecting a proper method of control of induction multi-motor drive is presented. A described multi-motor drive consists of two induction motors which are working synchronously what is crucial in described application. Induction motors are fed by modern frequency converters. The multi-motor drive rotates whole construction which turns the wagon whit coal out in the power plant. The induction motors are controlled by means of two control methods i.e. voltage vector control and flux vector control. Description of control algorithm of flux vector control as well as description of the whole control system is presented. The control scheme works well what is proved by means of measurements of speed and torque of both induction motors.