WO2018011838A1 - Dispositif d'ascenseur - Google Patents

Dispositif d'ascenseur Download PDF

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Publication number
WO2018011838A1
WO2018011838A1 PCT/JP2016/070365 JP2016070365W WO2018011838A1 WO 2018011838 A1 WO2018011838 A1 WO 2018011838A1 JP 2016070365 W JP2016070365 W JP 2016070365W WO 2018011838 A1 WO2018011838 A1 WO 2018011838A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
magnetic pole
rotation
governor
current
Prior art date
Application number
PCT/JP2016/070365
Other languages
English (en)
Japanese (ja)
Inventor
誠人 安岡
直樹 高山
中田　孝則
利治 松熊
寛典 金田
智昭 峰尾
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP2018527042A priority Critical patent/JPWO2018011838A1/ja
Priority to PCT/JP2016/070365 priority patent/WO2018011838A1/fr
Priority to CN201680085751.5A priority patent/CN109153536A/zh
Publication of WO2018011838A1 publication Critical patent/WO2018011838A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions

Definitions

  • the present invention relates to an elevator apparatus.
  • the problem to be solved by the present invention is to improve the magnetic pole position calculation accuracy when the motor encoder is faulty.
  • the present invention provides a synchronous motor having a sheave wound around a main rope as an axis, a car fastened via the main rope, an inverter device for controlling the rotation of the synchronous motor, and an inverter Fixed to the shaft of the synchronous motor, a current detector for measuring the motor current provided on the synchronous motor side of the device, a governor pulley wound with a governor rope connected to the car, a brake for braking the rotation of the synchronous motor
  • a motor encoder that outputs a pulse signal according to the rotation of the synchronous motor, a governor encoder that is fastened to the governor pulley and outputs a pulse signal according to the rotation of the governor pulley, and receives signals from the current detector, the motor encoder, and the governor encoder.
  • Elevator system that controls the operation of the car by calculating the amount of rotation of the synchronous motor and governor pulley
  • An elevator apparatus having a device, The elevator apparatus includes a motor current and governor pulley rotation amount storage unit that stores a motor current and a rotation amount of the governor pulley until the sheave rotation is stopped after detecting an abnormality of the motor encoder, and a motor current and a governor pulley rotation amount storage unit.
  • the motor magnetic pole position calculation unit that calculates the motor magnetic pole position when rotation of the sheave stops, and the elevator using the motor magnetic pole position calculated by the motor magnetic pole position calculation unit after emergency stop due to motor encoder error detection
  • the nearest floor drive unit that moves the car to the nearest floor and the speed control unit that continues to calculate the current motor magnetic pole position based on information from the motor current and governor pulley rotation amount storage unit .
  • the magnetic pole position calculation accuracy can be improved compared to estimating the magnetic pole from the armature inductance.
  • FIG. 2 Schematic configuration diagram of an elevator apparatus according to one embodiment
  • Block configuration diagram showing a schematic configuration of the elevator control device shown in FIG.
  • the flowchart which shows the processing operation of the elevator control apparatus shown in FIG. Waveform diagram showing the relationship between the motor current shown in FIG. 2 and the motor encoder, governor encoder, and magnetic pole position
  • FIG. 1 is a schematic configuration diagram showing an elevator apparatus according to an embodiment of the present invention.
  • the sheave 2 around which the main rope 1 is wound is rotated by a synchronous motor 4 having a brake 3 that brakes rotation, and is configured to drive the elevator car 5 and the counterweight 6 up and down via the main rope 1.
  • a governor rope 7 is fastened to the car 5 and is wound around a governor pulley 8.
  • a motor encoder 9 that outputs a pulse signal according to the rotation and a governor encoder 10 that outputs a pulse signal according to the rotation are also attached to the shaft of the synchronous motor 4.
  • the three-phase AC power source 11 used as a power source has an output side motor output line connected to the synchronous motor 4 via an inverter device 12.
  • the inverter device 12 On the output side of the inverter device 12, the inverter device 12 is stopped in an emergency such as a failure of the motor encoder 9. At this time, the motor output line from the inverter device 12 to the synchronous motor 4 is short-circuited for three-phase dynamic.
  • a dynamic brake device 13 that shortens the time required to stop using the brake is provided, and a current detector 14 that detects the motor current output from the inverter device 12.
  • the elevator control device 15 includes a speed signal from the motor encoder 9 that outputs a pulse signal according to the rotation of the synchronous motor 4 and a current signal from the current detector 14 that detects the current output from the inverter device 12.
  • the inverter device 12 is controlled so as to drive the synchronous motor 4 based on the command value that is taken in and controlled to raise and lower the car 5.
  • FIG. 2 is a block configuration diagram showing a schematic configuration of the elevator control device 15 described above.
  • the elevator controller 15 monitors the motor encoder 9, governor encoder 10, current detector 14, and other 16 signals that are the cause of emergency detection such as door opening and power failure, and detects abnormalities in the motor encoder 9.
  • an emergency braking unit 17 is configured to operate the dynamic brake device 13 to brake the elevator.
  • the elevator control device 15 includes a motor encoder failure detection unit 18 that detects an abnormality of the motor encoder 9, and a motor current acquisition unit that continuously acquires the motor current from the current detector.
  • a governor pulley rotation amount acquisition unit 20 that acquires a pulse signal corresponding to the rotation of the governor pulley from the governor encoder and calculates the rotation amount of the governor pulley, and a motor from when the abnormality of the motor encoder is detected until the rotation of the sheave stops
  • a motor current and governor pulley rotation amount storage unit 21 that stores current and governor pulley rotation amount, and a motor that calculates the motor magnetic pole position when the sheave rotation stops based on information in the motor current and governor pulley rotation amount storage unit
  • the magnetic pole position calculation unit 22 and the motor magnetic pole position calculated by the motor magnetic pole position calculation unit 22 Used to restart the elevator after an emergency stop to move the car to the nearest floor and perform speed control based on the rotation amount and rotation speed of the synchronous motor calculated by the motor magnetic pole calculation section It has a speed control unit 24, a storage unit 25 that stores a program for controlling each of these units, and a control unit 26 that controls each unit based on this program.
  • FIG. 3 is a flowchart showing the processing operation of the elevator control device 15 shown in FIG.
  • the motor encoder failure detection unit 18 monitors the abnormality of the motor encoder 9 in step S2.
  • the emergency braking unit 17 stops the inverter device 12 and starts braking by the brake 2 and also operates the dynamic brake device 13 to brake the elevator in step S3.
  • the motor current acquisition unit 18 acquires the motor current from the current detector 14 from the detection timing of the motor encoder failure detection unit 18 in step S4 and stores the motor current and the governor pulley rotation amount storage unit 21.
  • the governor pulley rotation amount acquisition unit 20 acquires a pulse signal accompanying the rotation of the governor pulley from the governor encoder from the timing of the motor encoder failure detection in step S4, calculates the governor pulley rotation amount, and stores it in the motor current and governor pulley rotation amount storage unit 21.
  • the motor magnetic pole position 27 can be obtained by the motor encoder 9 before the motor encoder normal state t1, but the magnetic pole position cannot be detected after t1 after the motor encoder abnormality is detected. .
  • step S5 the motor magnetic pole position calculation unit 22 calculates the motor magnetic pole position 28 when the rotation of the sheave 2 is stopped based on the information stored in the motor current and the governor pulley rotation amount storage unit.
  • a motor encoder signal that has failed due to an abnormality in the motor encoder 9 is calculated from the governor encoder signal.
  • the governor encoder signal at time t2 is calculated at which the rotation of the sheave 2 stops and the motor current stops flowing. Thereafter, the motor encoder signal is calculated from the governor encoder signal. Since the rotation diameter and resolution are different, the rotation amount of the synchronous motor 4 is calculated from the rotation amount of the governor pulley 8 after conversion.
  • the current motor magnetic pole position 28 can be calculated by adding the rotation amount of the synchronous motor 4 thus obtained, that is, the change amount of the magnetic pole position of the synchronous motor 4 to the magnetic pole position immediately before the abnormality detection of the motor encoder 9. it can. Thereafter, the nearest floor drive unit 23 restarts the elevator after the emergency stop using the motor magnetic pole position calculated and determined by the motor magnetic pole position calculation unit 22 in step S6. Since the motor magnetic pole position calculated from the governor encoder 10 which is the raising / lowering amount of the car is used, the possibility of unstable operation of the synchronous motor 4 such as reversal or step-out of the synchronous motor 4 due to a motor magnetic pole position error is reduced. be able to.
  • step S7 the elevator operation is monitored to determine whether or not there is an abnormal operation. If there is no abnormality as a result of the determination, the nearest floor landing operation is started in step S9. At this time, the speed control unit 24 can perform the nearest floor landing operation using the speed control by continuously calculating the motor magnetic pole position based on the information from the motor current and the governor pulley rotation amount storage unit 21. It becomes. Thereafter, the monitoring in S7 and the nearest floor landing operation in S9 are repeated until the nearest floor is landed in S10. On the other hand, if there is an abnormality as a result of the determination in step S7, the restart operation is stopped in step S8, and the elevator is put into a resting state on the spot.
  • the magnetic pole position calculation accuracy can be improved as compared with the calculation from the motor current and the armature inductance.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

Selon l'invention, il existe un moyen permettant d'évaluer un pôle magnétique à partir de l'inductance de l'induit en appliquant une tension à un moteur lorsqu'une défaillance se produit dans un codeur. Cependant, la position du pôle magnétique est difficile à calculer avec précision. Par conséquent, lorsqu'une position calculée du pôle magnétique est incorrecte, la sécurité ne peut pas être assurée en raison de l'apparition d'un fonctionnement instable tel que la rotation inverse du moteur. Par conséquent, la présente invention comporte : une unité de stockage de quantité de rotation de poulie de régulateur et de courant de moteur qui stocke un courant de moteur et une quantité de rotation d'une poulie de régulateur qui sont obtenus pendant un laps de temps entre la détection d'une anomalie d'un codeur de moteur et l'arrêt de la rotation d'une poulie ; une unité de calcul de position de pôle magnétique de moteur qui calcule, sur la base d'informations provenant de l'unité de stockage de quantité de rotation de poulie de régulateur et de courant de moteur, la position d'un pôle magnétique du moteur à un moment où la rotation de la poulie est arrêtée ; une unité d'entraînement vers l'étage le plus proche qui, après un arrêt d'urgence lié à la détection de l'anomalie du codeur de moteur, redémarre un ascenseur et déplace une cabine vers l'étage le plus proche en utilisant la position du pôle magnétique du moteur calculée par l'unité de calcul de position du pôle magnétique du moteur ; et une unité de commande de vitesse qui continue à calculer la position effective du pôle magnétique de moteur sur la base des informations provenant de l'unité de stockage de quantité de rotation de poulie de régulateur et de courant de moteur.
PCT/JP2016/070365 2016-07-11 2016-07-11 Dispositif d'ascenseur WO2018011838A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2018527042A JPWO2018011838A1 (ja) 2016-07-11 2016-07-11 エレベータ装置
PCT/JP2016/070365 WO2018011838A1 (fr) 2016-07-11 2016-07-11 Dispositif d'ascenseur
CN201680085751.5A CN109153536A (zh) 2016-07-11 2016-07-11 电梯设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/070365 WO2018011838A1 (fr) 2016-07-11 2016-07-11 Dispositif d'ascenseur

Publications (1)

Publication Number Publication Date
WO2018011838A1 true WO2018011838A1 (fr) 2018-01-18

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PCT/JP2016/070365 WO2018011838A1 (fr) 2016-07-11 2016-07-11 Dispositif d'ascenseur

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JP (1) JPWO2018011838A1 (fr)
CN (1) CN109153536A (fr)
WO (1) WO2018011838A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111453637A (zh) * 2020-03-31 2020-07-28 苏州汇川技术有限公司 电梯抱闸控制方法、***、设备及计算机可读存储介质
WO2023100319A1 (fr) * 2021-12-02 2023-06-08 株式会社日立製作所 Dispositif d'inspection pour actionneur électrique pour dispositif d'arrêt d'urgence

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6601587B1 (ja) * 2019-07-26 2019-11-06 フジテック株式会社 エレベーターのエンコーダー診断システム及び診断方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014240322A (ja) * 2013-06-12 2014-12-25 株式会社日立製作所 エレベーターの閉じ込め防止装置及びエレベーターの閉じ込め防止方法
JP2016029868A (ja) * 2014-07-25 2016-03-03 株式会社日立製作所 エレベータ制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014240322A (ja) * 2013-06-12 2014-12-25 株式会社日立製作所 エレベーターの閉じ込め防止装置及びエレベーターの閉じ込め防止方法
JP2016029868A (ja) * 2014-07-25 2016-03-03 株式会社日立製作所 エレベータ制御装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111453637A (zh) * 2020-03-31 2020-07-28 苏州汇川技术有限公司 电梯抱闸控制方法、***、设备及计算机可读存储介质
CN111453637B (zh) * 2020-03-31 2021-12-21 苏州汇川技术有限公司 电梯抱闸控制方法、***、设备及计算机可读存储介质
WO2023100319A1 (fr) * 2021-12-02 2023-06-08 株式会社日立製作所 Dispositif d'inspection pour actionneur électrique pour dispositif d'arrêt d'urgence

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Publication number Publication date
CN109153536A (zh) 2019-01-04
JPWO2018011838A1 (ja) 2019-02-14

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