Drive and control integration system for tractor of elevator

Abstract

The invention discloses a drive and control integration system for a tractor of an elevator and a working method of the drive and control integration system. The system comprises a three-phase alternating-current supply, a rectifying module, a circuit capacitor, an inverter module, a first protective circuit module, a second protective circuit module, a tractor module, a DSP (digital signal processor) and CPLD (complex programmable logic device) control module and a standard communication interface. According to the drive and control integration system, a DSP serves as a master control chip to take charge of the control of the tractor and the decision and control of the whole system; a CPLD serves as an assist control chip to take charge of the preprocessing of a great number of logic signals; the pressure of the DPS is reduced; and the reliability and the stability of the system are improved. On the basis of the vector control of the permanent magnet synchronous tractor, a current loop controller adopts a multimode control algorithm, and a speed ring controller adopts a control algorithm based on a disturbance observator. With the adoption of the drive and control integration system, the safety of a control system of the elevator is improved, and the drive and control integration system has the characteristics of compact structure, small size, convenience in maintenance and the like.

Description

1. Technical field [0001] The invention relates to the field of elevator drive and control, in particular to an elevator traction machine drive and control integrated system. 2. Background technology [0002] With the development of science and technology and the improvement of people's living standards, the use of elevators is becoming more and more common. According to the statistics of the China Elevator Association, as of 2011, the number of elevators in my country has reached 1.65 million units, and the production and consumption of elevators are both the first in the world. Due to many problems in elevator production, installation, operation and maintenance, supervision and management, and frequent elevator accidents across the country, elevator operation has become a new hidden danger for urban public safety. How to improve the safety and reliability of elevators and monitor elevator signals in real time is of great importance To the development of the entire elevato...

AI Technical Summary

Problems solved by technology

Voltage feed-forward decoupling control requires real-time acquisition of motor speed and transverse axis current derivative, which puts high demands on controllers and sensors, and is not easy to implement with a microprocessor

Current feedback decoupling control is an approximate decoupling control, and the decoupling performance decreases as the motor speed increases

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