Design of Mine Locomotive Emergency Power Inverter Control System

The emergency power supply device of electric locomotives supplies power in non-electrical areas. It is necessary to consider the different voltage and frequency requirements of different types of locomotives for auxiliary power supply. Their photovoltaic modules need to output corresponding frequency and stable voltage. Based on the analysis of emergency power supply requirements in this article, A model of the predictor and electrical load was established, and the functional relationship between the voltage and current in the middle part of the predictor was deduced. The functional expression was deduced into a similar reference coordinate system and a d-q rotating coordinate system, and accurate experimental results were calculated to show that, the improved control algorithm is relatively simple, requires less calculation, can be implemented dynamically online, and has good and static characteristics.