Integrated system and method for elevator drive control and energy saving

Abstract

The invention discloses an elevator driving control and energy saving integrated system. A master control unit based on double DSPs and an FPGA is adopted in the system to collect voltage, current, speed position and other information of a traction machine, and control over the elevator traction machine is achieved after comprehensive judgment. A supercapacitor bank is adopted to serve as a power source for running of a regenerating braking energy storage device and an elevator driving control sub-system, and energy is stored in the running braking process of an elevator sub-system. A supercapacitor are directly connected with a direct-current bus in parallel through a two-way direct-current converter, the master control unit monitors the running state of an elevator in real time by means of an elevator signal collection unit, switching between a charging mode and a discharging mode of a supercapacitor module is finished, and the aim of saving energy is achieved. The system fully uses the characteristics that the supercapacitor is large in discharging current, long in service life, short in charging and discharging time, large in capacitance density and the like, improves energy saving efficiency and safety of elevator running, has very high social benefits and economic benefits, and accords with the concept of environment protection and sustainable development.

Description

technical field [0001] The invention belongs to the field of elevator application and energy saving, in particular to an integrated system and method of elevator drive control and energy saving. Background technique [0002] With the acceleration of urban construction and the intensification of industrialization, the distribution of urban population is becoming more and more dense, and high-rise and super high-rise buildings are constantly emerging. The demand for elevators is rapidly expanding, and the supply of elevators is in short supply. At the same time, more and more people have noticed that the energy consumption of elevators is a new challenge. The electricity consumption of elevators accounts for 17% to 25% of the total electricity consumption of the entire building, second only to the electricity consumption of air conditioners. For the braking energy generated when the elevator decelerates upward and accelerates downward during the running process, it is usually...

AI Technical Summary

Problems solved by technology

[0005] At present, the existing research on using supercapacitors as backup power supplies only uses supercapacitors as backup power supplies for the system. The energy utilization rate is not high, and the integration with the system is not perfect. They all use a separate controller, which is not conducive to elevators. Drive the system's own resources to achieve the highest energy-saving effect

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