Electric Locomotive Variable Frequency Drive Device of Mine DC Lines
This document presents a solution for controlling a permanent magnet synchronous motor(PMSM) for the coal mine of DC lines of electric locomotive using the Texas Instruments (TI) TMS320C2407A digital signal processor (DSP). The control method presented relies on the vector control technology and space vector pulse width modulation (SVPWM) technology, the control algorithm maintains efficiency in a wide range speed. This document describes the structure features of the converter, power electronics, the keyboard display and the auxiliary power supply, hardware implementation and software design. Experimental results show that the system has better static and dynamic performance, completely fits the DC lines of electric locomotive operation. This document describes a practical solution and corresponding result, and this research has been applied successfully in practical work.