WO1999028229A2 - Systeme de commande d'elevateur avec moteur synchrone - Google Patents

Systeme de commande d'elevateur avec moteur synchrone Download PDF

Info

Publication number
WO1999028229A2
WO1999028229A2 PCT/FI1998/000893 FI9800893W WO9928229A2 WO 1999028229 A2 WO1999028229 A2 WO 1999028229A2 FI 9800893 W FI9800893 W FI 9800893W WO 9928229 A2 WO9928229 A2 WO 9928229A2
Authority
WO
WIPO (PCT)
Prior art keywords
motor
model
control system
speed
elevator
Prior art date
Application number
PCT/FI1998/000893
Other languages
English (en)
Swedish (sv)
Other versions
WO1999028229A3 (fr
Inventor
Harri Hakala
Esko Aulanko
Jorma Mustalahti
Original Assignee
Kone Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kone Corporation filed Critical Kone Corporation
Priority to AU12371/99A priority Critical patent/AU1237199A/en
Publication of WO1999028229A2 publication Critical patent/WO1999028229A2/fr
Publication of WO1999028229A3 publication Critical patent/WO1999028229A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor

Definitions

  • the present invention relates to an elevator control system as defined in the preamble of claim 1.
  • Finnish patent application FI A 944583 presents a solution according to which an elevator drive machine using a synchronous motor can in principle be started on the basis of all data defined in any case in the elevator or in its machinery.
  • the load weight signal is always available because of other requirements regarding elevator load data, such as overload data.
  • the object of the present invention is to disclose a new type of system for controlling an elevator drive machine using a synchronous motor. Specifically, the invention discloses a new type of system that reduces the costs involved in eleva ⁇ tor control.
  • the system of the invention is used to control a synchronous elevator motor fed by a frequency converter.
  • the system com- prises a model of the mechanical system, which is divided into a static part and a variable part dependent on load weight data.
  • the motor torque and speed requirements are calculated according to the mechanical system model as well as according to a speed reference and/or position reference.
  • the system also comprises a parametrised model of the motor. In principle, the only variable in the system is the load weight data, everything else is known in advance.
  • the motor control quantities are calculated on the basis of the parametrised motor model and the torque and speed require- ments. Thus, the entire elevator movement along its route from the starting acceleration to the final stop is defined and translated into motor control quantities prior to the departure of the elevator.
  • the models com- prised in the control system, the model of the mechanical system or the parametrised motor model are supplied from outside the control system. Therefore, the models are known beforehand from some other context.
  • the models can be generated on the basis of measurement results obtained from test operation executed by the control system.
  • the system measures the load weight data continuously.
  • This load weight data can be utilised e.g. in control system stabilisation during elevator travel .
  • the advantages of the present invention include a small need for measurements as the only quantity to be measured is the load weight data.
  • the mass of the system remains substantially constant after the elevator doors have been closed, so the weighing only needs to be carried out at least once during each passage of the elevator.
  • Another consequence of the system is a simple structure.
  • an elevator implementation according to the system of the invention is economical as compared with prior art.
  • the mechanical system 3 of the elevator system is divided into two parts, a static part 1 and a variable part 2 dependent on the load weight data.
  • the static part 1 practically remains constant all the time. Its parameters include e.g. the mass of the elevator car and that of the counterweight as well as the frictional forces.
  • the variable part consists of the load of the elevator.
  • the load weight data can be assumed to be constant from the moment the elevator doors are closed.
  • the speed reference is obtained e.g. on the basis of the motor power, which is known.
  • the position reference is obtained from the desired travel between floors, e.g. in the form of user's selection via the push-button panel of the elevator.
  • the require- ments regarding motor torque and speed can be calculated.
  • the motor control quantities 7 to be used can be calculated in advance.
  • the motor control quantities include e.g. the angle of the magnetic field of the stator and the current to be supplied to the motor.
  • the control quantities are stored in memory and fed to the motor in sequence at specified points of time, with the result that the elevator executes the functions comprised in the model provided in the system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electric Motors In General (AREA)
  • Elevator Control (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

L'invention concerne un système de commande d'élévateur dans lequel le moteur est un moteur synchrone alimenté par un convertisseur de fréquence. Le système de commande d'élévateur comprend un modèle (3) du système mécanique, qui est divisé en une partie statique (1) et une partie variable (2) qui dépend des données de poids de charge, des moyens servant à donner une référence de vitesse et/ou de position (4), des moyens servant à calculer les exigences (5) relatives au couple et à la vitesse du moteur, sur la base du modèle du système mécanique et de la référence de vitesse et/ou de position (4), un modèle paramétré (6) du moteur, et des moyens servant à calculer les grandeurs de commande du moteur (7) sur la base du modèle paramétré du moteur et des exigences (5) relatives au couple et à la vitesse.
PCT/FI1998/000893 1997-11-13 1998-11-13 Systeme de commande d'elevateur avec moteur synchrone WO1999028229A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12371/99A AU1237199A (en) 1997-11-13 1998-11-13 Elevator control system for synchronous motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI974229A FI111618B (fi) 1997-11-13 1997-11-13 Hissin ohjausjärjestelmä
FI974229 1997-11-13

Publications (2)

Publication Number Publication Date
WO1999028229A2 true WO1999028229A2 (fr) 1999-06-10
WO1999028229A3 WO1999028229A3 (fr) 1999-07-22

Family

ID=8549939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1998/000893 WO1999028229A2 (fr) 1997-11-13 1998-11-13 Systeme de commande d'elevateur avec moteur synchrone

Country Status (3)

Country Link
AU (1) AU1237199A (fr)
FI (1) FI111618B (fr)
WO (1) WO1999028229A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003011731A1 (fr) * 2001-08-01 2003-02-13 Kone Corporation Procede de correction de la reaction de vitesse dans un moteur a aimant permanent
WO2006074689A1 (fr) * 2005-01-11 2006-07-20 Otis Elevator Company Procede permettant d'effectuer une operation de secours dans un ascenseur
KR100903661B1 (ko) * 2007-08-08 2009-06-18 오티스 엘리베이터 컴파니 엘리베이터 구조 작업을 수행하는 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940117A (en) * 1988-02-16 1990-07-10 Kone Elevator Gmbh Procedure for the tuning of the position controller of an elevator
US5388052A (en) * 1993-03-31 1995-02-07 Otis Elevator Company Method of operating an induction motor
EP0638988A2 (fr) * 1993-08-11 1995-02-15 Georgia Tech Research Corporation Régulateur auto-adaptif de poursuite pour moteur synchrone à amiants permanents

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940117A (en) * 1988-02-16 1990-07-10 Kone Elevator Gmbh Procedure for the tuning of the position controller of an elevator
US5388052A (en) * 1993-03-31 1995-02-07 Otis Elevator Company Method of operating an induction motor
EP0638988A2 (fr) * 1993-08-11 1995-02-15 Georgia Tech Research Corporation Régulateur auto-adaptif de poursuite pour moteur synchrone à amiants permanents

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003011731A1 (fr) * 2001-08-01 2003-02-13 Kone Corporation Procede de correction de la reaction de vitesse dans un moteur a aimant permanent
US7339343B2 (en) 2001-08-01 2008-03-04 Kone Corporation Method for correcting speed feedback in a motor
WO2006074689A1 (fr) * 2005-01-11 2006-07-20 Otis Elevator Company Procede permettant d'effectuer une operation de secours dans un ascenseur
KR100903661B1 (ko) * 2007-08-08 2009-06-18 오티스 엘리베이터 컴파니 엘리베이터 구조 작업을 수행하는 방법

Also Published As

Publication number Publication date
FI974229A0 (fi) 1997-11-13
FI111618B (fi) 2003-08-29
FI974229A (fi) 1999-05-14
AU1237199A (en) 1999-06-16
WO1999028229A3 (fr) 1999-07-22

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