Power supply method and device for alternating-direct current locomotive upon unpowered conveying
A technology of fire-free return and power supply device, applied in the field of rail transit, can solve the problems of unstable power supply, inability to adjust and control the power supply, etc., and achieve the effects of stable voltage, compact design, convenient movement and disassembly and assembly
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[0046] Such as figure 1 As shown, a power supply device for an AC-DC locomotive when there is no fire return, including a power management module 2, an excitation chopper module 4, a rectification and voltage stabilization module 3, an AC inverter module 5, and a locomotive battery 6, wherein the power management module 2 It is connected with the excitation chopper module 4, the rectification and voltage stabilization module 3, the AC inverter module 5 and the locomotive battery 6 and detects the status of each module and controls each module. The output terminal of the excitation chopper module 4 is connected to the traction motor 1 for excitation The two ends of the coil are connected, the input end of the rectification and voltage stabilization module 3 is connected to both ends of the armature of the traction motor 1, and the output end of the AC inverter module 5 is connected to the load of the locomotive; before the traction motor 1 of the locomotive enters the power gene...
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