JPH06329368A - Linear motor driven elevator - Google Patents

Linear motor driven elevator

Info

Publication number
JPH06329368A
JPH06329368A JP11814093A JP11814093A JPH06329368A JP H06329368 A JPH06329368 A JP H06329368A JP 11814093 A JP11814093 A JP 11814093A JP 11814093 A JP11814093 A JP 11814093A JP H06329368 A JPH06329368 A JP H06329368A
Authority
JP
Japan
Prior art keywords
primary side
secondary conductor
linear motor
counterweight
sensed
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP11814093A
Other languages
Japanese (ja)
Inventor
Nobuhito Honda
暢人 本田
Toshio Meguro
都志雄 目黒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11814093A priority Critical patent/JPH06329368A/en
Publication of JPH06329368A publication Critical patent/JPH06329368A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To enhance the comfortableness by installing the primary side of a linear motor on a counterweight coupled with an elevator car by a rope, providing the secondary conductor over the length of a pit from the top of an elevating/sinking path in such a way as penetrating the primary side core, and furnishing a load sensing device in the condition that the secondary conductor is hung down at the top of the secondary conductor. CONSTITUTION:Current is fed to the primary side 1 of a linear motor installed on a counterweight 1a in conformity to an operation command. The primary side 1 is elevated and sunk along the secondary conductor 2 installed over the length of a pit from the machinery room. The speed including the vibratory component is sensed by a speed sensor 6 and fed back to a regulator 10. The speed command is regulated in comparison with the speed command. The vertical displacement generated in the secondary conductor 2 when the reaction is given in association with rise and fall of the primary side 1 is sensed by a load sensing device 3, and phase is varied so that the sensed displacement (vibration) is set off by a phase compensator 24 and fed back to behind the regulator 10.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、リニアモータ駆動エレ
ベータに関する。FIELD OF THE INVENTION The present invention relates to a linear motor drive elevator.

【０００２】[0002]

【従来の技術】かご並びにカウンタウエイトが走行する
昇降路全長に亘って設置されている中空円筒形案内のレ
ール，カウンタウエイト上に支持されているトロイダル
状のリニアモータの一次側、レールがモータのアマチュ
アとしても機能し、このレールは一次側の鉄心を貫通し
ている。このようなカウンタウエイトにリニアモータを
用いたエレベータが、特開昭57−121568号公報で既に開
示されている。2. Description of the Prior Art A hollow cylindrical guide rail installed over the entire length of a hoistway in which a car and a counterweight travel, a primary side of a toroidal linear motor supported on the counterweight, and a rail of the motor. Also functioning as an amateur, this rail penetrates the iron core on the primary side. An elevator using a linear motor for such a counterweight has already been disclosed in JP-A-57-121568.

【０００３】[0003]

【発明が解決しようとする課題】従来のリニアモータ駆
動エレベータでは、カウンタウエイトに設置されたリニ
アモータの一次側に電流を流すと、走行方向の端効果に
よりモータ電流周波数の２倍周波の推力リプルが発生す
る。この推力リプルが、ロープを介して乗りかごを振動
させ乗り心地を悪化させる原因になっている。In the conventional linear motor drive elevator, when a current is passed through the primary side of the linear motor installed on the counterweight, the thrust ripple of twice the motor current frequency is generated due to the end effect in the traveling direction. Occurs. This thrust ripple causes the car to vibrate via the rope and deteriorates the riding comfort.

【０００４】本発明の目的は、このような課題を解決す
ることにある。An object of the present invention is to solve such a problem.

【０００５】[0005]

【課題を解決するための手段】上記目的を達成するため
に、本発明によれば、カウンタウエイトに設置されたリ
ニアモータの一次側を貫通するように設置された二次導
体の頂部に、二次導体を吊り下げる状態になるよう荷重
検出装置を設置し、その出力リプルをエレベータ制御装
置に取り込むことにより、リニアモータの推力リプルを
抑制する。In order to achieve the above object, according to the present invention, a secondary conductor installed on the counterweight so as to penetrate through the primary side of the linear motor is provided with a secondary conductor. The load detection device is installed so that the next conductor is suspended, and the output ripple of the load detection device is taken into the elevator control device to suppress thrust ripple of the linear motor.

【０００６】[0006]

【作用】二次導体の頂部に設置された荷重検出装置から
リニアモータの一次側と二次導体の間に発生する推力を
作用反作用の原理に基づき検出することが出来る。この
推力の中に交流分として、モータの電流周波数の二倍周
波の推力リプルが含まれており、このリプル成分を取り
出し制御系へ逆極性でフィードバックすることにより、
推力リプルを打消すものである。The thrust generated between the primary side of the linear motor and the secondary conductor can be detected from the load detecting device installed on the top of the secondary conductor based on the principle of action and reaction. As an alternating current component in this thrust, thrust ripple at a frequency double the motor current frequency is included. By taking out this ripple component and feeding it back to the control system in reverse polarity,
It cancels thrust ripple.

【０００７】[0007]

【実施例】以下、添付の図面を参照して本発明の一実施
例を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

【０００８】図１は、本発明のリニアモータ駆動エレベ
ータを概略的に示したものである。図中、１はカウンタ
ウエイトに設置されたリニアモータの一次側、この一次
側１を貫通するようにリニアモータの二次導体２があ
り、二次導体２の頂部には二次導体２を吊り下げる状態
になるよう荷重検出装置３を設置、荷重検出装置３の出
力は、制御装置１８に入力される。また、二次導体２の
他端は、リニアモータの発生推力が荷重検出装置３で検
出できるようピット内の装置４は二次導体２の水平方向
移動を一次範囲内に納めるよう取り付けられている。一
次側１はテールコード５を通して、制御装置１８から給
電される。また、乗りかご１５と一次側１とはワイヤロ
ープ１２によって機器取付台７に設置されたプーリ９
ａ，９ｂを介して昇降可能となっている。また、プーリ
９ａにはブレーキ２５が設置されている。FIG. 1 schematically shows a linear motor drive elevator according to the present invention. In the figure, 1 is the primary side of the linear motor installed on the counterweight, and there is a secondary conductor 2 of the linear motor so as to penetrate the primary side 1. The secondary conductor 2 is suspended on the top of the secondary conductor 2. The load detection device 3 is installed so as to be in a lowered state, and the output of the load detection device 3 is input to the control device 18. Further, the other end of the secondary conductor 2 is attached so that the load detecting device 3 can detect the thrust generated by the linear motor so that the device 4 in the pit can accommodate the horizontal movement of the secondary conductor 2 within the primary range. . The primary side 1 is fed from the control unit 18 through the tail cord 5. In addition, the car 15 and the primary side 1 have a pulley 9 installed on the equipment mount 7 by a wire rope 12.
It can be moved up and down via a and 9b. A brake 25 is installed on the pulley 9a.

【０００９】図２は、本発明の動作を表わすブロック図
である。本発明によれば、まず運転指令が発生すると、
カウンタウエイトに設置されたリニアモータの一次側に
電流を流す。機械室からピットにわたって設置された二
次導体に沿って、一次側が昇降すると速度検出器６によ
り、振動成分を含んだ速度が検出され、これを調節器１
０にフィードバックし、速度指令と比較して速度指令を
調節する。また、一次側が昇降することにより、その反
作用で二次導体が上下に変位する。この変位を、荷重検
出装置３により検出し、位相補償器２４により荷重検出
装置３で検出された振動を打ち消すように位相を変化さ
せ、調節器１０の後にフィードバックする。これにより
速度指令は、振動の逆成分を発生させる指令を含んだも
のとなり、これに対してベクトル演算，電力変換を行う
ことで乗りかごの振動を抑制する。FIG. 2 is a block diagram showing the operation of the present invention. According to the present invention, when an operation command is first generated,
An electric current is sent to the primary side of the linear motor installed on the counterweight. When the primary side moves up and down along the secondary conductor installed from the machine room to the pit, the speed detector 6 detects the speed including the vibration component, and adjusts this.
It is fed back to 0 and the speed command is adjusted in comparison with the speed command. Further, as the primary side moves up and down, the secondary conductor is displaced up and down by its reaction. This displacement is detected by the load detection device 3, the phase is changed by the phase compensator 24 so as to cancel the vibration detected by the load detection device 3, and the phase compensation device 24 feeds it back after the adjuster 10. As a result, the speed command includes a command for generating an inverse component of vibration, and vector calculation and power conversion are performed on the command to suppress vibration of the car.

【００１０】[0010]

【発明の効果】本発明によればリニアモータで発生する
推力リプルを荷重検出装置により検出し、この推力リプ
ルの逆成分の推力を発生させるモータ電流をモータに帰
還することにより推力リプルを抑制し、乗り心地の良い
リニアモータ駆動エレベータが得られる。According to the present invention, the thrust ripple generated in the linear motor is detected by the load detecting device, and the motor current for generating the thrust of the reverse component of this thrust ripple is fed back to the motor to suppress the thrust ripple. A linear motor drive elevator that is comfortable to ride can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の構成を示した説明図。FIG. 1 is an explanatory diagram showing the configuration of the present invention.

【図２】本発明の動作を示したブロック図。FIG. 2 is a block diagram showing the operation of the present invention.

【符号の説明】[Explanation of symbols]

１…リニアモータの一次側、１ａ…カウンタウエイト、
２…リニアモータの二次導体、３…二次導体頂部に設置
された荷重検出装置、４…二次導体の水平方向変位を一
定範囲内に納める装置、５…テールコード、１５…乗り
かご、１８…制御装置。1 ... Primary side of linear motor, 1a ... Counter weight,
2 ... Secondary conductor of linear motor, 3 ... Load detection device installed on top of secondary conductor, 4 ... Device for keeping horizontal displacement of secondary conductor within a certain range, 5 ... Tail cord, 15 ... Car, 18 ... Control device.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】乗りかごとカウンタウエイトがロープを介
して結合され、前記カウンタウエイトにリニアモータの
一次側を設置し、前記リニアモータの一次側鉄心を貫通
するように、二次導体が昇降路頂部からピットにわたっ
て設置されているエレベータにおいて、前記リニアモー
タの前記二次導体の頂部に、前記二次導体を吊り下げる
状態で荷重検出装置を備えたことを特徴とするリニアモ
ータ駆動エレベータ。1. A car and a counterweight are connected to each other via a rope, a primary side of a linear motor is installed on the counterweight, and a secondary conductor passes through a hoistway of the linear motor so as to pass through a primary side core of the linear motor. An elevator installed from the top to the pit, wherein a load detecting device is provided on the top of the secondary conductor of the linear motor in a state of suspending the secondary conductor.
JP11814093A 1993-05-20 1993-05-20 Linear motor driven elevator Pending JPH06329368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11814093A JPH06329368A (en) 1993-05-20 1993-05-20 Linear motor driven elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11814093A JPH06329368A (en) 1993-05-20 1993-05-20 Linear motor driven elevator

Publications (1)

Publication Number Publication Date
JPH06329368A true JPH06329368A (en) 1994-11-29

Family

ID=14729062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11814093A Pending JPH06329368A (en) 1993-05-20 1993-05-20 Linear motor driven elevator

Country Status (1)

Country Link
JP (1) JPH06329368A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635689A (en) * 1995-02-17 1997-06-03 Otis Elevator Company Acceleration damping of elevator resonant modes and hydraulic elevator pump leakage compensation
US5750945A (en) * 1996-06-03 1998-05-12 Otis Elevator Company Active elevator hitch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635689A (en) * 1995-02-17 1997-06-03 Otis Elevator Company Acceleration damping of elevator resonant modes and hydraulic elevator pump leakage compensation
US5750945A (en) * 1996-06-03 1998-05-12 Otis Elevator Company Active elevator hitch

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