Intelligent integrated elevator system assistant power device

Abstract

An intelligent power supply applied to elevator relates to a power electronic topology scheme to adopt high frequency switch energy transformation technology and digitalized phase sequence detection technology to integrate a plurality of (generally 6) components or devices related to elevator assistant power supply in a current elevator control system into a circuit board. Power transformation canbe obtained all by changing high frequency transformer switches, the phase sequence protection can be realized by software, DC band-type brake is subject to rated incitation (110V or 200V), reduced rate maintenance (80V/160V), thus saving contactor and access of power resistance, simplifying circuit, reducing energy consumption and improving reliability. The 220V power required by the elevator toseparate from the grid can also be obtained by high frequency transformation, thus greatly reducing volume and idle loss, and fully electronizing and intelligentizing the plurality of (generally 6) components in the current system with no contact points, weight/volume being 20-30% of the original weight/volume and cost being around half of the original cost, saving quantities of copper, saving energy consumption (no energy consumption resistance), really realizing integration of intelligence and environment protection, decoupling all the parts, and totally not influencing other circuits by cutting out solely when short pass occurs to a gate machine circuit.

Description

technical field [0001] The invention relates to electrotechnical technology, power electronic technology, and elevator control technology. Background technique [0002] At present, the auxiliary power system of the elevator control system is generally figure 1 As shown, including: power frequency transformer (500-1000W, weight 10KG-20KG), phase sequence protector, rectifier bridge and smoothing capacitor, contactor, power resistor, switching power supply meter 6 parts, its disadvantage: large weight and volume , complex wiring, high energy consumption, mutual coupling and correlation, and low reliability. [0003] The present invention as figure 2 As shown, the above six devices are all electronic, intelligent, and contactless. The weight / volume is only 20-30% of the original, and the cost is only about half. It saves a lot of copper, saves energy (no energy consumption resistors), and truly realizes the integration of intelligence and environmental protection. Each par...

AI Technical Summary

Problems solved by technology

[0002] At present, the auxiliary power system of the elevator control system is generally figure 1 As shown, including: power frequency transformer (500-1000W, weight 10KG-20KG), phase sequence protector, rectifier bridge and smoothing capacitor, contactor, power resistor, switching power supply meter 6 parts, its disadvantage: large weight and volume , complex wiring, high energy consumption, mutual coupling, low reliability

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