FIELD: electricity.
SUBSTANCE: in the power conversion system for the Diesel locomotive auxiliaries comprising an auxiliary three-phase synchronous generator with a rectifier connected to its output and converting three-phase current to direct current, DC consumers are connected to a direct-current-mains, while AC consumers for the Diesel locomotive auxiliaries are connected through semiconductor converters, the three-phase rectifier is made as a four-quadrant semiconductor converter, which power IGBT-transistors in the power circuit are connected directly to the output of the auxiliary three-phase synchronous generator and in a control circuit they are connected to a vector control unit in a coordinate system rotating synchronically with an output voltage vector of the auxiliary three-phase synchronous generator and inputs of the above unit are connected to sensors for input linear voltage, two sensors of input phase current and a sensor for output direct voltage of the four-quadrant semiconductor converter.
EFFECT: expanded functionality of the Diesel locomotive notwithstanding positions of the driver's controller, generation of stable direct voltage for auxiliaries and operation in nominal conditions, simplified design of the Diesel locomotive and power supply for the auxiliaries of the second and third sections from the operating section of the Diesel locomotive, increased efficiency factor of the auxiliary three-phase generator and AC-DC rectifier.
2 dwg
