Elevator energy recovery system based on intelligent super-capacitor modules

Abstract

The invention discloses an elevator energy recovery system based on intelligent super-capacitor modules. The elevator energy recovery system comprises a plurality of connected super-capacitor modules,wherein the super-capacitor modules are connected with a CAN communication bus respectively, and are connected with a system control main board through the CAN communication bus; the super-capacitormodules are connected with a direct current contactor through an IGBT and driving and power inductors, and the super-capacitor modules are further connected with an elevator controller; the super-capacitor modules are further connected with a single-phase inverter module, and output 220 V AC. The system control main board is connected with a display module, the IGBT, the driving and power inductors and the direct current contactor respectively; the elevator controller is connected with the direct current contactor, the elevator controller is further connected with an elevator input switch, andthe elevator input switch is connected with a 380 V AC input power supply through a three-phase contactor. The elevator energy recovery system can be accepted by more elevator users, so that the popularization of the elevator energy recovery system is promoted to a certain extent.

Description

technical field [0001] The invention relates to an elevator energy recovery device, in particular to an elevator energy recovery system using an intelligent supercapacitor module as an energy storage unit. Background technique [0002] With the continuous development of elevator technology and energy-saving technology, elevator energy recovery systems have appeared in the elevator field in recent years. The recovered electrical energy is reused. In the current elevator energy recovery system, the industry uses supercapacitors as energy storage devices. Due to the different power of the elevator energy recovery system, the capacity and number of strings of supercapacitors used are also different. [0003] In the existing elevator energy recovery systems in the market, the supercapacitor modules are all common modules, that is, the supercapacitor modules only have a single overvoltage discharge protection circuit. However, this common module mode has great potential safety h...

AI Technical Summary

Problems solved by technology

In fact, this supercapacitor overvoltage protection scheme itself has caused a certain amount of heat pollution to the natural space, and this method also limits the maximum efficiency of the elevator energy recovery system for power recovery.

Images