Исследование пусковых режимов частотно-регулируемого электропривода магистрального электровоза ДС3

Abstract

Составлена математическая модель частотно-регулируемого электропривода магистрального электровоза ДС3 с учётом нелинейности характеристики сцепления и особенностей контура скорости имеющего регулятор, настроенный на модульный оптимум. На модели рассчитаны пусковые режимы работы электропривода для характерных условий работы электровоза. Выполнен анализ полученных диаграмм. Установлено, что значение движущего момента меньше максимально допустимого, время разгона груженного состава и его ускорение соответствуют принятым нормативам.

A review of the existing mainline electric locomotives that are operated on the railway of Ukraine was conducted. Information was collected on the modern DS3 electric locomotive. A review of publications about this electric locomotive was made. The survey showed that this topic was not dis -closed for research. Consequently, a mathematical model of an electrically controlled frequency converter DS3 was compiled. The mathematical model includes non-linear characteristics of adhesion and speed contour. In this mathematical model, a speed controller tuned to amodular optimum is implemented. Drive mode was modeled. To simulate operating modes, route maps of operated electric locomotives were taken onthe Ukrainian railway. The analysis of the obtained transient processes during the acceleration of the electric locomotive DS3 is carriedout. The transients obtained correspond to the generally accepted standards for the operationof trunk electric locomotives. In the diagrams, it is clear that the value of the driving moment is less than the maximum allowed, the time of acceleration of the load and itsacceleration correspond to the accepted norms.