JP2000134976A - Elevator device using permanent-magnet synchronous motor - Google Patents

Elevator device using permanent-magnet synchronous motor

Info

Publication number
JP2000134976A
JP2000134976A JP10306678A JP30667898A JP2000134976A JP 2000134976 A JP2000134976 A JP 2000134976A JP 10306678 A JP10306678 A JP 10306678A JP 30667898 A JP30667898 A JP 30667898A JP 2000134976 A JP2000134976 A JP 2000134976A
Authority
JP
Japan
Prior art keywords
synchronous motor
magnetic pole
pole position
permanent magnet
elevator
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
JP10306678A
Other languages
Japanese (ja)
Inventor
Takanori Nakada
孝則 中田
Hideki Nihei
秀樹 二瓶
Noboru Arahori
荒堀  昇
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 JP10306678A priority Critical patent/JP2000134976A/en
Publication of JP2000134976A publication Critical patent/JP2000134976A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To judge the failure in a magnetic pole position detector and to stop an elevator without causing it to be out of control by judging the right and wrong of the magnetic pole position detector in comparison with the current value of a permanent magnet synchronous motor. SOLUTION: An elevator device is provided with a PWM inverter 2 for supplying current to a permanent-magnet synchronous motor 1, detects current with a current detector 12, and detects the magnetic pole position of the permanent-magnet motor 1 with a magnet position detector 8. Then, a judgment circuit 20 for judging the failure of the magnetic pole position detector is provided. For example, when an AC current is supplied to the permanent-magnet synchronous motor 1, a torque is generated and a traction machine 3 that is connected to the permanent-magnet synchronous motor 1 is rotated. By controlling the rotary speed of the permanent-magnet synchronous motor 1, the speed of an elevator can be controlled. The judgment circuit 20 judges the right or wrong of the magnetic pole position signal. When it judges that the magnetic pole position signal is wrong, it reports the failure in the magnetic pole position detector 8 and stops the elevator.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、エレベータ装置に
係わり、特に永久磁石式同期モータを用いたエレベータ
装置に関わる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus, and more particularly to an elevator apparatus using a permanent magnet type synchronous motor.

【0002】[0002]

【従来の技術】従来の永久磁石式同期モータを用いたエ
レベータ装置は、例えば特開平9− 9699号公報に示さ
れるように構成されている。
2. Description of the Related Art A conventional elevator apparatus using a permanent magnet type synchronous motor is configured as shown in, for example, JP-A-9-9699.

【0003】[0003]

【発明が解決しようとする課題】従来例では、磁極位置
検出器が正常であるか否かの判定手段がないため、磁極
位置検出器が故障した場合、誤った磁極位置信号が電流
制御系に帰還されてしまい、正常なエレベータの速度制
御が行われなくなる。従って、異常な速度偏差が発生
し、エレベータが暴走する恐れがある。
In the prior art, since there is no means for determining whether the magnetic pole position detector is normal, if the magnetic pole position detector fails, an erroneous magnetic pole position signal is sent to the current control system. The elevator is returned, and normal elevator speed control is not performed. Therefore, an abnormal speed deviation may occur, and the elevator may run away.

【0004】本発明の目的は、磁極位置検出器の故障を
判断し、エレベータが暴走することなく停止させること
ができるエレベータ装置を得ることにある。
[0004] It is an object of the present invention to provide an elevator apparatus capable of judging a failure of a magnetic pole position detector and stopping the elevator without runaway.

【0005】[0005]

【課題を解決するための手段】永久磁石式同期モータを
用いたエレベータ装置において、永久磁石式同期モータ
の磁極位置に応じて磁極位置信号を出力する手段と、前
記永久磁石式同期モータの電流値を検出する手段を有
し、この電流値と比較して前記磁極位置信号の正誤を判
断するためのエレベータ装置とすることにより上記課題
は解決される。
In an elevator apparatus using a permanent magnet synchronous motor, means for outputting a magnetic pole position signal according to the magnetic pole position of the permanent magnet synchronous motor, and a current value of the permanent magnet synchronous motor The above problem can be solved by providing an elevator apparatus for detecting the magnetic pole position signal by comparing the current value with the current value.

【0006】[0006]

【発明の実施の形態】図1に本発明のエレベータ装置の
実施例を示す。
FIG. 1 shows an embodiment of an elevator apparatus according to the present invention.

【0007】図1は、PWMインバータを用いて構成し
た場合のエレベータ装置を示すものである。永久磁石式
同期モータ1と、これに電流を供給するPWMインバー
タ2と、電流の検出を行う電流検出器12と、永久磁石
式同期モータ1の磁極位置の検出を行う磁極位置検出器
8と、磁極位置検出器の故障を判断する判定回路20
と、電流制御を行う電流制御器10と、エレベータ速度
の検出を行う速度検出器7と、エレベータの速度制御を
行う速度制御器11と、永久磁石式同期モータ1に結合
された巻上機3で構成される。
FIG. 1 shows an elevator apparatus constructed using a PWM inverter. A permanent magnet synchronous motor 1, a PWM inverter 2 for supplying a current thereto, a current detector 12 for detecting a current, a magnetic pole position detector 8 for detecting a magnetic pole position of the permanent magnet synchronous motor 1, Judgment circuit 20 for judging failure of magnetic pole position detector
A current controller 10 for controlling current, a speed detector 7 for detecting an elevator speed, a speed controller 11 for controlling the speed of the elevator, and a hoist 3 coupled to the permanent magnet type synchronous motor 1. It is composed of

【0008】速度制御器11では、速度指令値ωm
* と、速度検出器7からの速度帰還値ωmに基づいて、
トルク分電流指令iq* が決定される。永久磁石式同期
モータでは、磁石による界磁束が確立されているため、
界磁分電流指令id* は基本的には0で良い。3相/2
相座標変換器16において、電流検出器12からの3相
電流帰還値iu,iwと、磁極位置検出器8からの磁極
位置信号θによりトルク分電流iq及び界磁分電流id
に変換される。トルク分電流指令iq* とトルク分電流
iqの偏差及び界磁分電流指令id* 及び界磁分電流i
dの偏差をとり、電流制御器10において、q軸電圧の
指令値vq*′,d軸電圧の指令値vd*′が決定され
る。
In the speed controller 11, a speed command value ωm
* , Based on the speed feedback value ωm from the speed detector 7,
The torque current command iq * is determined. In the permanent magnet type synchronous motor, the field flux by the magnet is established,
The field current command id * may be basically zero. 3 phase / 2
In the phase coordinate converter 16, the torque component current iq and the field component current id are obtained based on the three-phase current feedback values iu and iw from the current detector 12 and the magnetic pole position signal θ from the magnetic pole position detector 8.
Is converted to Deviation between torque component current command iq * and torque component current iq and field component current command id * and field component current i
By taking the deviation of d, the current controller 10 determines the command value vq * 'of the q-axis voltage and the command value vd * ' of the d-axis voltage.

【0009】これらの電圧指令vq*′,vd*′と、非
干渉演算器31において実速度ωrと実電流iq,id
から計算された指令値の偏差をとったものが、q軸電圧
指令vq* 及びd軸電圧指令vd* になる。これらの電
圧指令vq* ,vd* 及び磁極位置検出器8からの磁極
位置信号θに基づき、2相/3相座標変換器15におい
て3相電圧指令vu* ,vv* ,vw* に変換されてP
WMインバータ2において、出力電圧を制御し、永久磁
石式同期モータ1に交流電流を供給する。
These voltage commands vq * ', vd * ', actual speed ωr and actual currents iq, id
Are the q-axis voltage command vq * and the d-axis voltage command vd * . Based on these voltage commands vq * , vd * and the magnetic pole position signal θ from the magnetic pole position detector 8, the two-phase / three-phase coordinate converter 15 converts them into three-phase voltage commands vu * , vv * , vw *. P
In the WM inverter 2, the output voltage is controlled to supply an alternating current to the permanent magnet synchronous motor 1.

【0010】交流電流が流れることにより永久磁石式同
期モータ1にトルクが発生し、永久磁石式同期モータ1
には結合された巻上機3が回転する。永久磁石式同期モ
ータ1の回転速度を制御することによりエレベータの速
度を制御することができる。判定回路20では、磁極位
置信号の正誤を判断する。
When an alternating current flows, a torque is generated in the permanent magnet type synchronous motor 1 and the permanent magnet type synchronous motor 1
, The hoisting machine 3 connected thereto rotates. By controlling the rotation speed of the permanent magnet type synchronous motor 1, the speed of the elevator can be controlled. The determination circuit 20 determines whether the magnetic pole position signal is correct or not.

【0011】図2に判定回路20での磁極位置信号の正
誤の判定手順を示す。速度制御器11から出力される電
流指令値iq* ,id* と、電流検出器12からの電流
帰還値iq,idを比較した偏差信号をとり、所定値を
超えているかどうか判定する。
FIG. 2 shows a procedure for determining whether the magnetic pole position signal is correct or not in the determination circuit 20. A deviation signal obtained by comparing the current command values iq * , id * output from the speed controller 11 and the current feedback values iq, id from the current detector 12 is determined, and it is determined whether or not the difference exceeds a predetermined value.

【0012】次にこの偏差が、所定値を超えていると判
断された場合、電流帰還値が実際の負荷や加速,減速な
どの運転状態に合致しているかどうか判断する。負荷状
態を知る方法として、図示はしていないが荷重検出器を
用いている。そしてモータに流れている電流値が、実際
の負荷と所定値を超えてずれている場合に、磁極位置検
出器8が故障していると判断する。磁極位置信号が誤っ
ていると判断されたときは、磁極位置検出器8の故障を
発報し、決められた手順に従いエレベータを停止させ
る。
Next, when it is determined that the deviation exceeds a predetermined value, it is determined whether or not the current feedback value matches the actual load and operating conditions such as acceleration and deceleration. As a method of knowing the load state, a load detector (not shown) is used. If the current flowing through the motor deviates from the actual load by more than a predetermined value, it is determined that the magnetic pole position detector 8 has failed. When it is determined that the magnetic pole position signal is incorrect, a failure of the magnetic pole position detector 8 is issued, and the elevator is stopped according to a predetermined procedure.

【0013】図3に別の判定手順を示す。速度制御器1
1から出力される電流指令値iq*,id* と、電流検出
器12からの電流帰還値iq,idを比較した偏差信号
をとり、所定値を超えているかどうか判定する。次にこ
の偏差が小さくなる様に磁極位置信号を修正する。なお
も、偏差が増大していき所定値以上になるようであれば
磁極位置信号が故障していると判断する。磁極位置信号
が誤っていると判断されたときは、磁極位置検出器8の
故障を発報し、決められた手順に従いエレベータを停止
させる。
FIG. 3 shows another determination procedure. Speed controller 1
A deviation signal obtained by comparing the current command values iq * , id * output from 1 with the current feedback values iq, id from the current detector 12 is determined, and it is determined whether or not the difference exceeds a predetermined value. Next, the magnetic pole position signal is corrected so as to reduce the deviation. In addition, if the deviation increases and becomes equal to or more than a predetermined value, it is determined that the magnetic pole position signal has failed. When it is determined that the magnetic pole position signal is incorrect, a failure of the magnetic pole position detector 8 is reported, and the elevator is stopped according to a predetermined procedure.

【0014】このような判定回路20を設けることによ
り、磁極位置検出器の故障を判断し、エレベータが暴走
することなく停止させることができる。
By providing such a determination circuit 20, a failure of the magnetic pole position detector can be determined, and the elevator can be stopped without runaway.

【0015】本実施例では、磁極位置検出器と速度検出
器を別個のものとしているが、一体型であっても良い。
巻上機は、減速機の有無に関わらず、またモータ一体型
巻上機であっても良い。また、本実施例では、界磁分電
流指令は0とする制御法としたが、負荷状態に合わせて
界磁電流を制御しても良い。
In this embodiment, the magnetic pole position detector and the speed detector are separate, but they may be integrated.
The hoist may be a motor-integrated hoist regardless of the presence or absence of the reduction gear. Further, in the present embodiment, the control method is such that the field component current command is 0, but the field current may be controlled according to the load state.

【0016】[0016]

【発明の効果】本発明により、磁極位置検出器の故障を
判断し、エレベータが暴走することなく停止させること
ができるエレベータ装置を得ることができる。
According to the present invention, it is possible to obtain an elevator apparatus capable of judging a failure of the magnetic pole position detector and stopping the elevator without runaway.

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

【図1】本発明のエレベータ装置の実施例の構成図であ
る。
FIG. 1 is a configuration diagram of an embodiment of an elevator apparatus of the present invention.

【図2】本発明のエレベータ装置の実施例の磁極位置信
号の正誤の判定手順である。
FIG. 2 shows a procedure for determining whether a magnetic pole position signal is correct or not in the embodiment of the elevator apparatus of the present invention.

【図3】本発明のエレベータ装置の他の実施例の磁極位
置信号の正誤の判定手順である。
FIG. 3 shows a procedure for determining whether a magnetic pole position signal is correct or not in another embodiment of the elevator apparatus of the present invention.

【符号の説明】[Explanation of symbols]

1…永久磁石式同期モータ、3…巻上機、8…磁極位置
検出器、12…電流検出器、20…判定回路。
DESCRIPTION OF SYMBOLS 1 ... Permanent magnet type synchronous motor, 3 ... Hoisting machine, 8 ... Magnetic pole position detector, 12 ... Current detector, 20 ... Judgment circuit.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 荒堀 昇 茨城県ひたちなか市市毛1070番地 株式会 社日立製作所水戸工場内 Fターム(参考) 3F002 CA06 CA10 EA05 3F304 CA13 EA00 EA29 EA34 EB03 ED18 5H560 AA10 BB04 BB12 DA00 DB00 DC12 EB01 GG04 JJ02 XA12 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Noboru Arahori 1070 Ma, Hitachinaka-shi, Ibaraki F-term in Mito Plant, Hitachi, Ltd. F-term (reference) DA00 DB00 DC12 EB01 GG04 JJ02 XA12

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】釣り合い錘と、乗りかごと、前記釣り合い
錘と前記乗りかごを接続するロープと、該ロープを介し
て前記乗りかごを上下移動せしめる巻上機と、該巻上機
を駆動し、永久磁石を設けた回転子と巻線を設けた固定
子からなる永久磁石式同期モータと、該永久磁石式同期
モータの磁極位置に応じて磁極位置信号を出力する手段
と、前記永久磁石式同期モータの電流値を検出する手段
を有し、該電流値とを比較して前記磁極位置信号の正誤
を判断することを特徴とする永久磁石式同期モータを用
いたエレベータ装置。
1. A counterweight, a car, a rope connecting the counterweight and the car, a hoist that moves the car up and down via the rope, and driving the hoist. A permanent magnet synchronous motor including a rotor provided with permanent magnets and a stator provided with windings, means for outputting a magnetic pole position signal according to the magnetic pole position of the permanent magnet synchronous motor, An elevator apparatus using a permanent magnet type synchronous motor, comprising means for detecting a current value of a synchronous motor, and comparing the current value with the current value to determine whether the magnetic pole position signal is correct or not.
【請求項2】釣り合い錘と、乗りかごと、前記釣り合い
錘と前記乗りかごを接続するロープと、該ロープを介し
て前記乗りかごを上下移動せしめる巻上機と、該巻上機
を駆動し、永久磁石を設けた回転子と巻線を設けた固定
子からなる永久磁石式同期モータと、該永久磁石式同期
モータの電流値を制御する制御装置と、前記永久磁石式
同期モータの磁極位置に応じて磁極位置信号を出力する
手段と、前記永久磁石式同期モータの電流値を検出する
手段を有し、前記制御装置の電流指令値と前記検出電流
値とを比較して前記磁極位置信号の正誤を判断すること
を特徴とする永久磁石式同期モータを用いたエレベータ
装置。
2. A counterweight, a car, a rope connecting the counterweight and the car, a hoist for moving the car up and down via the rope, and driving the hoist. A permanent magnet synchronous motor including a rotor having a permanent magnet and a stator having a winding, a control device for controlling a current value of the permanent magnet synchronous motor, and a magnetic pole position of the permanent magnet synchronous motor Means for outputting a magnetic pole position signal in accordance with, and means for detecting the current value of the permanent magnet type synchronous motor, comparing the current command value of the control device and the detected current value, the magnetic pole position signal An elevator apparatus using a permanent magnet type synchronous motor characterized by judging right or wrong of the elevator.
【請求項3】請求項1または2記載の永久磁石式同期モ
ータを用いたエレベータ装置であって、前記磁極位置信
号が誤っていると判断したときに、その誤りの程度を判
定し、所定の基準値を超えた場合は、故障の発報をし、
エレベータを停止させることを特徴とする永久磁石式同
期モータを用いたエレベータ装置。
3. An elevator apparatus using a permanent magnet synchronous motor according to claim 1 or 2, wherein when the magnetic pole position signal is determined to be incorrect, the degree of the error is determined, and If the standard value is exceeded, a failure is reported,
An elevator apparatus using a permanent magnet type synchronous motor, wherein the elevator is stopped.
JP10306678A 1998-10-28 1998-10-28 Elevator device using permanent-magnet synchronous motor Pending JP2000134976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10306678A JP2000134976A (en) 1998-10-28 1998-10-28 Elevator device using permanent-magnet synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10306678A JP2000134976A (en) 1998-10-28 1998-10-28 Elevator device using permanent-magnet synchronous motor

Publications (1)

Publication Number Publication Date
JP2000134976A true JP2000134976A (en) 2000-05-12

Family

ID=17960013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10306678A Pending JP2000134976A (en) 1998-10-28 1998-10-28 Elevator device using permanent-magnet synchronous motor

Country Status (1)

Country Link
JP (1) JP2000134976A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005170605A (en) * 2003-12-11 2005-06-30 Mitsubishi Electric Corp Abnormal vibration detecting device of elevator
US6914408B2 (en) * 2001-02-27 2005-07-05 Hitachi, Ltd. Motor control apparatus and electric vehicle using same
JP2009058338A (en) * 2007-08-31 2009-03-19 Koyo Electronics Ind Co Ltd Rotary encoder and electronic control system
JP2009280318A (en) * 2008-05-20 2009-12-03 Mitsubishi Electric Corp Control device for elevator
KR100999603B1 (en) * 2004-10-05 2010-12-08 현대자동차주식회사 Encoder failure detection method of a green car
KR101158922B1 (en) 2004-03-29 2012-06-21 루크 라멜렌 운트 쿠프룽스바우 베타일리궁스 카게 Method and device for controlling an electromotor
CN101723217B (en) * 2008-10-28 2012-11-21 株式会社日立制作所 Security device for elevator
CN108183649A (en) * 2016-12-08 2018-06-19 株式会社日立大厦系统 The magnetic pole diagnostic device of elevator permanent-magnetic body synchronous motor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6914408B2 (en) * 2001-02-27 2005-07-05 Hitachi, Ltd. Motor control apparatus and electric vehicle using same
JP2005170605A (en) * 2003-12-11 2005-06-30 Mitsubishi Electric Corp Abnormal vibration detecting device of elevator
JP4498730B2 (en) * 2003-12-11 2010-07-07 三菱電機株式会社 Elevator abnormal vibration detection device
KR101158922B1 (en) 2004-03-29 2012-06-21 루크 라멜렌 운트 쿠프룽스바우 베타일리궁스 카게 Method and device for controlling an electromotor
KR100999603B1 (en) * 2004-10-05 2010-12-08 현대자동차주식회사 Encoder failure detection method of a green car
JP2009058338A (en) * 2007-08-31 2009-03-19 Koyo Electronics Ind Co Ltd Rotary encoder and electronic control system
JP2009280318A (en) * 2008-05-20 2009-12-03 Mitsubishi Electric Corp Control device for elevator
CN101723217B (en) * 2008-10-28 2012-11-21 株式会社日立制作所 Security device for elevator
CN108183649A (en) * 2016-12-08 2018-06-19 株式会社日立大厦系统 The magnetic pole diagnostic device of elevator permanent-magnetic body synchronous motor
CN108183649B (en) * 2016-12-08 2020-12-18 株式会社日立大厦系统 Magnetic pole diagnostic device of permanent magnet synchronous motor for elevator

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