KR950026799A

KR950026799A - Elevator speed control device

Info

Publication number: KR950026799A
Application number: KR1019940004016A
Authority: KR
Inventors: 강준구
Original assignee: 이희종; 엘지산전 주식회사
Priority date: 1994-03-02
Filing date: 1994-03-02
Publication date: 1995-10-16

Abstract

본 발명은 엘리베이터의 속도제어장치에 관한 것으로서, 종래에 엘리베이터가 상승 또는 하강하기 위해 최대토오크로 운전하는 경우와 원하는 층에 정지하기 위해 저토오크로 운전하는 경우에 있어서, 이득의 크기를 애초에 크게 설정해 두면 상기 저토오크로 운전하는 경우에 있어서 토오크가 지나치게 민감해져서 진동문제를 야기시키고, 반대로 이득의 크기를 애초에 작게 설정해 두면 상기 고토오크로 운전하는 경우에 있어서 응답성이 떨어지는 문제점이 있다. 따라서 본 발명은 속도합성부에서 출력되는 속도오차신호에 그 속도오차신호의 크기에 비례하는 이득을 적용하여 그 속도오차 신호를 레벨업시키고 적분함으로써 결국 엘리베이터의 승차감이 향상되도록 한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speed control apparatus for an elevator. In the case of operating an elevator at a maximum torque for raising or lowering and a low torque for stopping at a desired floor, a large amount of gain is initially set. In this case, the torque becomes excessively sensitive when operating at the low torque, causing vibration problems. On the contrary, if the gain size is initially set small, the response is poor when operating at the high torque. Therefore, the present invention applies a gain proportional to the magnitude of the speed error signal to the speed error signal output from the speed synthesizing unit, thereby leveling up and integrating the speed error signal, thereby improving the ride comfort of the elevator.

Description

Elevator speed control device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래 엘리베이터의 속도제어장치의 블럭도.1 is a block diagram of a speed controller of a conventional elevator.

제2도는 본 발명 엘리베이터의 속도제어장치의 블럭도.2 is a block diagram of a speed control device of an elevator of the present invention.

제3도는 제2도의 속도제어부 상세도.3 is a detailed view of the speed controller of FIG.

제4도는 제2도의 다른 실시예로서의 속도제어부 상세도.4 is a detailed view of a speed controller as another embodiment of FIG.

Claims

The speed synthesizer synthesizes the command speed signal from the outside and the actual speed signal fed back to produce a speed error signal, and applies a variable gain proportional to the magnitude of the speed error signal to the speed error signal of the speed synthesizer to apply the speed error signal. A speed control section for generating a command torque current by leveling up and integrating an error signal, a voltage command converting section for converting the command torque current of the speed control section into a command torque voltage, and a command torque voltage converted by the voltage command converting section And a pulse width modulation converter for width-modulating and driving the motor, and a speed detector for detecting and sending an actual speed signal of the motor driven by the pulse width modulation converter to the speed synthesizing unit.

The variable proportional gain for leveling up the speed error signal by applying a gain proportional to the magnitude of the speed error signal to the speed error signal of the speed synthesizer, and the speed error signal of the speed synthesizer. A variable integrator gain and integrator that level up and integrate the speed error signal by applying a gain proportional to the magnitude of the speed error signal, and a speed error signal and the variable integrator gain and integrator that the variable proportional gain levels up and outputs The speed control device of an elevator comprising a signal synthesizer for generating a command torque current by synthesizing a speed error signal outputted by integrating the output signal.

※ Note: The disclosure is based on the initial application.