WO2014207830A1 - エレベータの制御装置 - Google Patents

エレベータの制御装置 Download PDF

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Publication number
WO2014207830A1
WO2014207830A1 PCT/JP2013/067475 JP2013067475W WO2014207830A1 WO 2014207830 A1 WO2014207830 A1 WO 2014207830A1 JP 2013067475 W JP2013067475 W JP 2013067475W WO 2014207830 A1 WO2014207830 A1 WO 2014207830A1
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WO
WIPO (PCT)
Prior art keywords
current
value
gain
current sensor
current value
Prior art date
Application number
PCT/JP2013/067475
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English (en)
French (fr)
Japanese (ja)
Inventor
馬場　俊行
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201380075998.5A priority Critical patent/CN105143079B/zh
Priority to JP2015523707A priority patent/JP5939358B2/ja
Priority to PCT/JP2013/067475 priority patent/WO2014207830A1/ja
Publication of WO2014207830A1 publication Critical patent/WO2014207830A1/ja

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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
    • 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
    • B66B1/285—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical with the use of a speed pattern generator
    • 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
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes

Definitions

  • This invention relates to an elevator control device.
  • Patent Document 1 describes a motor control device used for an elevator or the like. According to the control device, torque ripple caused by the offset voltage of the current sensor can be reduced.
  • An elevator control device detects a drive current that flows through a current controller that outputs a voltage command based on an input current command to an electric motor that drives an elevator cage by rotating.
  • a current detection unit that detects a current value corresponding to the drive current from a current sensor that detects a load of the car, a current detection unit that detects the load of the car, and the current controller that is in a state where the rotation of the motor is braked
  • the current controller detects a first current value detected by the current detection unit when a voltage command corresponding to a load of the motor is output, and prevents the motor from rotating in a state where braking of the rotation of the motor is released.
  • a determination unit with a.
  • the input side of the synchronous motor 2a is connected to the output side of the inverter 1.
  • the sheave 2b is provided on the output shaft of the synchronous motor 2a.
  • the brake 2c is provided on the inner peripheral side of the sheave 2b.
  • the encoder 2d is provided in the vicinity of the synchronous motor 2a.
  • the control block 8 includes a speed pattern generation unit 9, a braking pattern generation unit 10, a current detection unit 11, a basket load detection unit 12, a speed controller 13, and a current controller 14.
  • the power supply outputs AC power.
  • the converter converts the AC power into DC power.
  • the DC power is input to the DC bus.
  • the capacitor removes the influence of the pulsating current or the like.
  • the DC power is input to the inverter 1.
  • the speed controller 13 acquires a speed command from the speed pattern generation unit 9.
  • the speed controller 13 acquires a speed detection value from the encoder 2d.
  • the speed controller 13 outputs a current command based on the speed command and the speed detection value.
  • the braking pattern generation unit 10 In the zero speed control period, the braking pattern generation unit 10 outputs an opening command while the speed command is 0. In response to the release command, the brake 2c releases the braking of the rotation of the synchronous motor 2a. At this time, the stationary state of the cage 4 is maintained only by the driving force of the synchronous motor 2a.
  • the current controller 14 causes the voltage command to fall based only on the current command value from the basket load detection unit 12. At this time, the cage 4 is kept stationary only by the braking force of the brake 2c. After that, the cage 4 door opens.
  • the current ratio calculation unit 15a acquires the current command value a and the current command value b from the current detection unit 11.
  • the current ratio calculation unit 15a calculates a ratio between the current command value a and the current command value b.
  • the current sensor determination unit 15b acquires the ratio between the current command value a and the current command value b from the current ratio calculation unit 15a.
  • the current sensor determination unit 15b determines whether or not the current sensor 6 is normal based on the ratio. If the current sensor 6 is not normal, the current sensor determination unit 15 b outputs an alert 17.
  • FIG. 2 is a diagram for explaining a case where the current sensor of the elevator system using the elevator control device according to Embodiment 1 of the present invention is normal.
  • the brake 2c is released.
  • the torque of the synchronous motor 2a is insufficient.
  • the basket 4 starts moving.
  • the current controller 14 increases the voltage command so that the torque of the synchronous motor 2a is increased.
  • the torque value of the synchronous motor 2a increases to a value actually required.
  • the current detection value is larger than the value when the current sensor 6 is normal.
  • the current detection unit 11 stores the current command value b.
  • the current detection unit 11 acquires a current detection value smaller than the actual drive current value. As a result, the feedback current value becomes smaller than the actual drive current value. In this case, the current controller 14 outputs a voltage command so that the detected current value becomes large. As a result, the torque value of the synchronous motor 2a becomes larger than the value when the current sensor 6 is normal. At this time, the current detection unit 11 stores a current command value a.
  • step S2 the current detection unit 11 determines whether or not a condition for holding the current command value a in the scale starting period is satisfied. Specifically, the current detection unit 11 determines whether or not the current command value is a constant value. If the current command value is not a constant value in step S2, the process returns to step S2. If the current command value is a constant value in step S2, the process proceeds to step S3.
  • step S7 the current ratio calculation unit 15a calculates the ratio between the current command value a and the current command value b.
  • step S9 If the expression (2) is not satisfied in step S9, the process proceeds to step S10. In step 10, the current sensor determination unit 15b determines that the current sensor 6 is normal. Thereafter, the operation ends.
  • the current command value a in the scale starting period is set based on the load of the car 4 detected by the car load detection unit 12. For this reason, before the adjustment of the scale device 4a performed at the time of installation of the elevator or the like is completed, the current command value a greatly deviates from the correct value.
  • the current command value b in the zero speed control period is controlled to a value corresponding to the correct load torque so as to keep the car 4 stationary.
  • the calculation result of the ratio between the current command value a and the current command value b greatly deviates from the correct value. In this case, it cannot be accurately determined whether or not the appropriate current sensor 6 is used.
  • FIG. FIG. 6 is a flowchart for illustrating the operation of a control block provided in the elevator control apparatus according to Embodiment 2 of the present invention.
  • symbol is attached
  • step S15 the process proceeds to step S15, and the current sensor determination unit 15b outputs an alert. Then, it progresses to step S16 and the control block 8 continues the starting of an elevator. Thereafter, the operation ends.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Electric Motors In General (AREA)
PCT/JP2013/067475 2013-06-26 2013-06-26 エレベータの制御装置 WO2014207830A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201380075998.5A CN105143079B (zh) 2013-06-26 2013-06-26 电梯的控制装置
JP2015523707A JP5939358B2 (ja) 2013-06-26 2013-06-26 エレベータの制御装置
PCT/JP2013/067475 WO2014207830A1 (ja) 2013-06-26 2013-06-26 エレベータの制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/067475 WO2014207830A1 (ja) 2013-06-26 2013-06-26 エレベータの制御装置

Publications (1)

Publication Number Publication Date
WO2014207830A1 true WO2014207830A1 (ja) 2014-12-31

Family

ID=52141237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/067475 WO2014207830A1 (ja) 2013-06-26 2013-06-26 エレベータの制御装置

Country Status (3)

Country Link
JP (1) JP5939358B2 (zh)
CN (1) CN105143079B (zh)
WO (1) WO2014207830A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231439A (en) * 1975-09-03 1977-03-09 Mitsubishi Electric Corp Device for contrlling elevator
JPH0710403A (ja) * 1993-06-29 1995-01-13 Toshiba Corp エレベータ制御装置
JP2008150200A (ja) * 2006-12-20 2008-07-03 Hitachi Ltd エレベータ装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0445078A (ja) * 1990-06-11 1992-02-14 Mitsubishi Electric Corp エレベータの制御装置
JP5447810B2 (ja) * 2009-09-07 2014-03-19 東芝エレベータ株式会社 モータ駆動装置およびトルクリップル除去方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231439A (en) * 1975-09-03 1977-03-09 Mitsubishi Electric Corp Device for contrlling elevator
JPH0710403A (ja) * 1993-06-29 1995-01-13 Toshiba Corp エレベータ制御装置
JP2008150200A (ja) * 2006-12-20 2008-07-03 Hitachi Ltd エレベータ装置

Also Published As

Publication number Publication date
JP5939358B2 (ja) 2016-06-22
JPWO2014207830A1 (ja) 2017-02-23
CN105143079A (zh) 2015-12-09
CN105143079B (zh) 2017-03-08

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