Short stator train three-phase power supply control system

Abstract

The invention discloses a short stator train three-phase power supply control system and relates to the technical field of train power supply and operation control. The system comprises an AC-DC-AC variable-frequency variable-voltage device, power supply rails, a sensing board, a traveling rail, a vehicle-mounted current collector, a vehicle-mounted three-phase driving winding and a vehicle-mounted rectifying and energy storage device, wherein the AC-DC-AC variable-frequency variable-voltage device, the power supply rails, the sensing board and the traveling rail are arranged on the ground; the vehicle-mounted current collector, the vehicle-mounted three-phase driving winding and the vehicle-mounted rectifying and energy storage device are arranged on a train; the power supply rails include the first power supply rail and the second power supply rail, and the power supply rails and the grounded traveling rail form a three-phase alternating-current power supply circuit; the sensing board and the three-phase driving winding of the train conduct sensing work; the AC-DC-AC variable-frequency variable-voltage device supplies power to the vehicle-mounted three-phase driving winding of the train through the three-phase alternating-current power supply circuit and the current collector; the AC-DC-AC variable-frequency variable-voltage device on the ground is used for frequency adjustment, voltage adjustment and power supply to achieve three-phase drive and operation control over the train; the vehicle-mounted rectifying and energy storage device supplies power to train auxiliary electricity utilization equipment.

Description

technical field [0001] The invention relates to the technical field of train power supply and operation control. Background technique [0002] Existing short stator trains (also known as linear motor trains) are powered by a DC power supply system. On a train, electrical equipment occupies an important position, the most important of which is the transmission system. The current short stator train transmission system is composed of an on-board inverter and a drive winding (short stator) connected in series, and the purpose of driving the train and speed regulation is achieved by adjusting the frequency and voltage of the drive winding. This process is called train driving. Usually, in reality, train driving is done by human operators, and a few are automatically driven. There are some problems here: First, in the electrical equipment of the train, the transmission system occupies an absolute weight, and its weight is large and the volume is large; Occupy more valuable spa...

AI Technical Summary

Problems solved by technology

There are some problems here: First, in the electrical equipment of the train, the transmission system occupies an absolute weight, and its weight is large and the volume is large; Occupy more valuable space of the train, reduce power density and efficiency; second, intelligent control and automatic driving (ATC) is the only way to replace manual driving, but, in the current train and power supply mode, the execution equipment required for driving is installed in the On the train, the train is moving, even at high speed, and the command and organization of the automatic driving (ATC) comes from the ground control center, the two cannot be directly connected, and a wireless system is required, and the wireless system fails or fails will inevitably pose a certain security risk

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