Escalator dual-power-supply switching auxiliary apparatus and method

Abstract

The invention belongs to the technical field of escalator power supply control, and discloses an escalator dual-power-supply switching auxiliary apparatus and method. The auxiliary apparatus adopts asupercapacitor, an emergency power supply or an uninterruptible power supply as energy storage equipment; in the dual-power-supply switching process, the energy storage equipment supplies power for acontrol system of the escalator to enable a main brake and an additional brake of the escalator not to act; meanwhile, a main power system of the escalator continuously operates due to inertia until power supply switching is completed, and the main power system is powered by the switched power supply, so that normal operation of the escalator in the switching period of the dual-power-supply switching box ATS can be ensured, panic or even treading of passengers caused by escalator sudden stop in the power supply switching process of the escalator can be avoided, evacuating capability is greatlyimproved, and possibility of injury to passengers can be lowered; and the auxiliary apparatus and method provided by the invention also can be used for innovation of the existing escalator.

Description

technical field [0001] The invention belongs to the technical field of escalator power supply control, and in particular relates to an escalator dual power supply switching auxiliary device and method. Background technique [0002] An escalator, also known as an electric escalator, is a type of escalator with a circular running ladder. It is a fixed electric drive device used to transport passengers upward or downward. In urban rail transit or high-speed rail station buildings, escalators with a first-level load are often used. Escalators with primary loads are often involved in evacuation, and are equipped with dual power supply switching boxes, using dual-circuit power supply; when one of the power supplies fails, the dual power supply switching box ATS is used to switch to the other power supply for power supply, but due to the control of the main and backup power supplies The switching time of the switched dual power switching box ATS does not match the corresponding ti...

AI Technical Summary

Problems solved by technology

Escalators with primary loads are often involved in evacuation, and are equipped with dual power supply switching boxes, using dual-circuit power supply; when one of the power supplies fails, the dual power supply switching box ATS is used to switch to the other power supply for power supply, but due to the control of the main and backup power supplies The switching time of the switched dual power switching box ATS does not match the corresponding time of the escalator safety protection circuit, and the escalator will stop suddenly when the dual power supply is switched; specifically, the switching time of the dual power switching box ATS is generally above 100ms, while the escalator After 10ms of power failure, the main brake and additional brake will act, so that the emergency stop of the escalator will occur during the period before the power switch is completed, which will easily cause panic among passengers and pose a safety hazard, and it will not be able to achieve emergency evacuation at critical moments. effect

Images