Super capacitive energy storage elevator self-rescue device

Abstract

The invention relates to a super capacitive energy storage elevator self-rescue device. According to the device, on the basis that the original elevator frequency conversion drive unit is not changed, a main circuit is additionally provided with a super capacitive energy storage device as an elevator reserve power supply to prevent the panic and dangers of personnel in an elevator car due to an out-of-control elevator caused by sudden power failure of a mains supply when a disaster such as an earthquake and a fire disaster occurs. The elevator frequency conversion drive unit comprises an uncontrollable rectifier bridge module, a direct current bus filter capacitor, a frequency converter power module and an elevator tractor. The super capacitive energy storage device consists of a super capacitor and a two-cascade BOOST circuit. The super capacitor has the advantages of high capacitance, quick charging and discharging, wide operating temperature range, long cycle service life, simplicity in maintenance and the like. The two-cascade BOOST circuit can perform quick discharging control on the super capacitor, allow the super capacitor to output high voltage quickly when operating, and allow the bus voltage to be kept higher, so that the elevator tractor can operate at a higher speed, the elevator can arrive at designated floors as soon as possible, and the personnel in the car can get rid of the dangers as soon as possible.

Description

technical field [0001] The present invention relates to an elevator power failure emergency operation system. In particular, the present invention uses a supercapacitor as an energy storage device as a backup power supply to ensure that emergency power is provided for the elevator when a natural disaster occurs or when the city power is suddenly cut off in other emergency situations. Backup power supply ensures the safety of people in the elevator. Background technique [0002] With the rapid development of my country's economy, the continuous process of urbanization, and the acceleration of building construction, the number of elevators in my country is in a period of rapid growth; when natural disasters or other emergencies occur, there is a risk of power failure. The phenomenon of closing people and stopping elevators will cause certain panic and injury to passengers. Therefore, the development and development of a series of safety backup facilities such as elevator powe...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the storage battery in the UPS power supply used in the existing elevator emergency device has short service life, small capacity, needs regular maintenance, and is sensitive to ambient temperature, etc., and proposes a high reliability, strong safety and can avoid elevator Supercapacitor energy storage elevator self-rescue device in power outage accident

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