JPH092753A - Elevator control device - Google Patents

Elevator control device

Info

Publication number
JPH092753A
JPH092753A JP7154345A JP15434595A JPH092753A JP H092753 A JPH092753 A JP H092753A JP 7154345 A JP7154345 A JP 7154345A JP 15434595 A JP15434595 A JP 15434595A JP H092753 A JPH092753 A JP H092753A
Authority
JP
Japan
Prior art keywords
induction motor
value
elevator
current
inverter
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
JP7154345A
Other languages
Japanese (ja)
Inventor
Kosei Hata
孝生 畑
Shunsuke Mitsune
三根  俊介
Toshiki Kajiyama
俊貴 梶山
Original Assignee
Hitachi Ltd
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 Hitachi Ltd, 株式会社日立製作所 filed Critical Hitachi Ltd
Priority to JP7154345A priority Critical patent/JPH092753A/en
Publication of JPH092753A publication Critical patent/JPH092753A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To perform automatic landing operation in case of power failure of a commercial power supply while protecting a power supply for emergency by detecting a current-equivalent value and a voltage-equivalent value of an induction motor, and controlling an operation speed of an elevator based on the current-equivalent value and the voltage-equivalent value of the induction motor in automatic landing operation. CONSTITUTION: When a commercial AC power supply 10 fails, a contactor coil 11 is deenergized to put a contactor contact 11b on, and a drive command is generated to an auxiliary inverter device 23. In the auxiliary inverter device 23, power of a power supply (battery) 20 for emergency is converted into three- phase AC, and after a DC power is supplied to an inverter 17 at a specified time after that, so the three-phase AC power is supplied to a control circuit 30. The control circuit 30 takes deviation between a speed command and a detected speed V to perform integrating operation for calculating a current command and a frequency command, it takes deviation between a current command value and a detected current I to perform integrating operation to calculate a voltage command, and it outputs a pulse signal, based on the voltage command value and the frequency command value to control the inverter 17.

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、停電時自動着床運転機
能を有するエレベーターの制御装置の改良に関するもの
である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control device having an automatic landing operation function during a power failure.
【0002】[0002]
【従来の技術】従来の停電時自動着床運転機能を有する
エレベーター制御装置としては、例えば、特開平2−147
581 号公報に開示されているように、非常用電源として
のバッテリの少なくとも一端をコンバータの交流側に接
続することにより、誘導電動機の回生運転によるバッテ
リへの充電を防止しているものがある。一方、例えば、
特公平5−77591号公報に開示されたように、回生電力で
バッテリを充電する回路構成とし、バッテリへの入力電
流を検出する専用の検出器を設け、充電電流が所定値以
上になると誘導電動機の回転速度を低下させるものが知
られている。
2. Description of the Related Art A conventional elevator control device having an automatic landing operation function during a power failure is disclosed in, for example, Japanese Patent Laid-Open No. 2-147.
As disclosed in Japanese Patent No. 581, at least one end of a battery as an emergency power source is connected to the AC side of a converter to prevent charging of the battery due to regenerative operation of an induction motor. On the other hand, for example,
As disclosed in Japanese Examined Patent Publication No. 5-77591, a circuit configuration for charging a battery with regenerative power is provided, and a dedicated detector for detecting an input current to the battery is provided, and when the charging current exceeds a predetermined value, an induction motor It is known to reduce the rotation speed of.
【0003】[0003]
【発明が解決しようとする課題】上気した第1の従来技
術では、誘導電動機の回生電力を全て捨ててしまってお
り、エネルギー効率が悪い。一方、第2の従来技術で
は、回生電力をバッテリに返しているためエネルギー効
率は良いが、専用の電流検出器及びその付属回路が必要
となるため回路構成が複雑になるといった問題点があ
る。
In the first prior art, which has been considered to be a problem, all the regenerative electric power of the induction motor is discarded, resulting in poor energy efficiency. On the other hand, in the second conventional technique, the regenerated electric power is returned to the battery, so that the energy efficiency is good, but there is a problem that the circuit configuration becomes complicated because a dedicated current detector and its associated circuit are required.
【0004】本発明は、上記問題点を解決するためにな
されたもので、停電時自動着床運転時のエネルギー効率
の向上と、非常用電源の保護を、簡易な回路で実現する
ことを目的とする。
The present invention has been made to solve the above problems, and an object thereof is to improve energy efficiency during automatic landing operation during a power failure and protect an emergency power supply with a simple circuit. And
【0005】[0005]
【課題を解決するための手段】本発明のある一面におい
ては、商用交流電源を直流に変換するコンバータと、上
記コンバータ出力を交流に変換しエレベーター駆動用の
誘導電動機に給電するインバータと、上記インバータを
制御する制御手段と、上記商用交流電源停電時に上記イ
ンバータ及び上記制御手段へ給電し停電時自動着床運転
を行うための非常用電源とを備えたエレベーターの制御
装置において、上記誘導電動機の電流相当値を検出する
手段と、上記誘導電動機の電圧相当値を検出する手段
と、上記自動着床運転時に上記誘導電動機の電流相当値
と電圧相当値に基づいてエレベーターの運転速度を制御
する手段を備える。
According to one aspect of the present invention, a converter for converting a commercial AC power supply into a DC power supply, an inverter for converting the converter output into an AC power supply to an induction motor for driving an elevator, and the above inverter. In the control device of the elevator, the current of the induction motor is controlled by the control means for controlling the Means for detecting an equivalent value, means for detecting an equivalent voltage value of the induction motor, and means for controlling the operating speed of the elevator based on the equivalent current value and the equivalent voltage value of the induction motor during the automatic landing operation. Prepare
【0006】本発明の望ましい一実施態様においては、
商用交流電源を直流に変換するコンバータと、上記コン
バータ出力を交流に変換しエレベーター駆動用の誘導電
動機に給電するインバータと、上記誘導電動機の回転速
度を検出する手段と、上記誘導電動機に流れる電流を検
出する手段と、上記速度検出値及び上記電流検出値を入
力し上記インバータを制御する制御手段と、上記商用交
流電源停電時に上記インバータ及び上記制御手段へ給電
し停電時自動着床運転を行うための非常用電源とを備え
たエレベーターの制御装置において、上記自動着床運転
時に上記速度検出値及び上記電流検出値を入力する電力
演算手段と、この電力演算手段の出力が所定値以内とな
るようにエレベーターの速度指令を制限する手段を備え
ることを特徴とする。
In a preferred embodiment of the present invention,
A converter for converting a commercial AC power supply into a DC, an inverter for converting the converter output into an AC to supply power to an induction motor for elevator driving, a means for detecting the rotation speed of the induction motor, and a current flowing through the induction motor. A means for detecting, a control means for inputting the speed detection value and the current detection value to control the inverter, and for supplying power to the inverter and the control means during the commercial AC power failure to perform automatic landing operation during a power failure In an elevator control device equipped with an emergency power source, an electric power calculation means for inputting the speed detection value and the current detection value during the automatic landing operation and an output of the power calculation means are within a predetermined value. Is provided with means for limiting the speed command of the elevator.
【0007】[0007]
【作用】このように構成することによって、自動着床運
転時に、インバータ制御用に用いられる既存の検出手段
の出力から上記誘導電動機の電流相当値と電圧相当値を
得ることができ、非常用電源と誘導電動機間の電力授受
量を所定値に保ち非常用電源を保護しつつ、速やかな自
動着床運転を、簡単な構成で実現する。
With this structure, the current equivalent value and voltage equivalent value of the induction motor can be obtained from the output of the existing detecting means used for controlling the inverter during the automatic landing operation, and the emergency power supply can be obtained. Achieves rapid automatic landing operation with a simple configuration while protecting the emergency power supply by keeping the amount of power exchange between the induction motor and the induction motor at a predetermined value.
【0008】[0008]
【実施例】図1は本発明の一実施例によるエレベーター
制御装置の回路構成を示し、図2は図1における制御回
路30の機能構成を示す。
1 shows a circuit configuration of an elevator control apparatus according to an embodiment of the present invention, and FIG. 2 shows a functional configuration of a control circuit 30 in FIG.
【0009】図1において、商用交流電源10が正常の
ときは接触器コイル11が励磁され接触器接点11aが
オンし、商用交流電源10の電力は、コンバータ13に
より直流へ変換されコンデンサ14へ充電される。エレ
ベータへ運転指令が発せられると、制御回路30はイン
バータ17へ制御信号(PWMパルス信号)を出力し
て、上記直流を可変電圧・可変周波数の3相交流に変換
すると共に、ブレーキ16を釈放(釈放機能は図示省
略)し、誘導電動機18及び巻上げ機42を駆動させ乗
りかご40及び釣合い錘41を昇降駆動する。
In FIG. 1, when the commercial AC power supply 10 is normal, the contactor coil 11 is excited and the contactor contact 11a is turned on, and the power of the commercial AC power supply 10 is converted to DC by the converter 13 and charged in the capacitor 14. To be done. When an operation command is issued to the elevator, the control circuit 30 outputs a control signal (PWM pulse signal) to the inverter 17 to convert the direct current into a three-phase alternating current having a variable voltage and a variable frequency and release the brake 16. The release function is omitted), and the induction motor 18 and the hoist 42 are driven to vertically move the car 40 and the counterweight 41.
【0010】ここで、誘導電動機18が回生運転になる
と、回生電力はインバータ17により直流側へ戻されコ
ンデンサ14へ充電される。コンデンサ14の両端電圧
が所定値を超えると、回生電力消費回路15内のトラン
ジスタ151を導通させて、回生電力を抵抗器152に
消費させる。このようにして、過電圧の発生を防止して
機器を保護すると共に、コンデンサ14への過充電を防
止する。
Here, when the induction motor 18 is in the regenerative operation, the regenerative power is returned to the DC side by the inverter 17 and charged in the capacitor 14. When the voltage across the capacitor 14 exceeds a predetermined value, the transistor 151 in the regenerative power consumption circuit 15 is turned on to cause the resistor 152 to consume the regenerated power. In this way, overvoltage is prevented from occurring and the device is protected, and the capacitor 14 is prevented from being overcharged.
【0011】商用交流電源10が停電すると、接触器コ
イル11が消勢され接触器接点11bがオンし、補助イン
バータ装置23へ駆動指令が発せられる。補助インバー
タ装置23は、制御回路231と補助インバータ232
から成り、非常用電源例えばバッテリ20の電力を3相
交流に変換し、一定時間経過後に接触器コイル21を励
磁して接点21a,21a1 をオンさせる。したがっ
て、インバータ17に非常用電源20の直流電力を供給
し、制御回路30へ3相交流電力を供給する。これによ
り、制御回路30は平常時と同様にインバータ17を利
用して、上記非常電源20からの直流電力を可変電圧・
可変周波数の3相交流に変換すると共に、ブレーキ16
を釈放し、誘導電動機18及び巻上げ機42を駆動させ
乗りかご40及び釣合い錘41を昇降駆動する。
When the commercial AC power supply 10 loses power, the contactor coil 11 is deenergized, the contactor contact 11b is turned on, and a drive command is issued to the auxiliary inverter device 23. The auxiliary inverter device 23 includes a control circuit 231 and an auxiliary inverter 232.
The electric power of the emergency power source, for example, the battery 20, is converted into a three-phase alternating current, and the contactor coil 21 is excited to turn on the contacts 21a and 21a 1 after a certain period of time. Therefore, the DC power of the emergency power supply 20 is supplied to the inverter 17, and the three-phase AC power is supplied to the control circuit 30. As a result, the control circuit 30 uses the inverter 17 in the same manner as in the normal state to change the DC power from the emergency power source 20 to a variable voltage.
Converts to variable-frequency three-phase alternating current and brake 16
Then, the induction motor 18 and the hoisting machine 42 are driven to drive the car 40 and the counterweight 41 up and down.
【0012】その運転方向は、乗りかご40に設けられ
た秤装置33の信号を参照し、乗りかご40と釣合い錘
41の重量差により発生するアンバランス・トルクの作
用方向とする。このようにして、誘導電動機18を負坦
の小さい側へ回転させ、非常用電源20の容量低下を図
る。
The operating direction is the direction of action of the unbalanced torque generated by the weight difference between the car 40 and the counterweight 41 with reference to the signal from the weighing device 33 provided on the car 40. In this way, the induction motor 18 is rotated to the side with the smaller negative load, and the capacity of the emergency power supply 20 is reduced.
【0013】乗りかご40が最寄り階に近づくと、エレ
ベーターの速度指令を低下させて減速し、ブレーキ16
をかけて停止させる。
When the car 40 approaches the nearest floor, the speed command of the elevator is reduced to decelerate and the brake 16
To stop it.
【0014】図2において速度指令作成部35は、運転
制御部39からの運転指令をもとに速度指令V* を算出
し、速度検出器32の検出値Vと共に速度制御部36へ
入力する。速度制御部36は上記速度指令値V* と上記
速度検出値Vの偏差をとって積分演算を行い、電流指令
I* と周波数指令f* を算出する。電流制御部37は上
記電流指令値I* と電流検出器31の検出値Iの偏差を
とって積分演算を行い、電圧指令E* を算出し、上記周
波数指令値f* と共にパルス制御部38へ入力する。パ
ルス制御部38は上記電圧指令値E* と上記周波数指令
値f* をもとにパルス信号PSを出力し、インバータ1
7を駆動する。
In FIG. 2, the speed command generator 35 calculates the speed command V * based on the driving command from the driving controller 39, and inputs it to the speed controller 36 together with the detected value V of the speed detector 32. The speed control unit 36 calculates the current command I * and the frequency command f * by performing the integral calculation by taking the deviation between the speed command value V * and the speed detection value V. The current control unit 37 calculates the voltage command E * by performing the integral calculation by taking the deviation between the current command value I * and the detection value I of the current detector 31, and sends it to the pulse control unit 38 together with the frequency command value f *. input. The pulse control unit 38 outputs a pulse signal PS based on the voltage command value E * and the frequency command value f *, and the inverter 1
7 is driven.
【0015】電力算出部34は次の演算式により誘導電
動機18への供給電力を演算する。 誘導電動機電力P=k×(電動機電流相当値)×(電動機電圧相当値) …(1) ここで、k=変換定数である。
The electric power calculator 34 calculates the electric power supplied to the induction motor 18 by the following arithmetic expression. Induction motor power P = k × (motor current equivalent value) × (motor voltage equivalent value) (1) where k = conversion constant.
【0016】上記誘導電動機の電流相当値としては、誘
導電動機18の電流検出器31の出力値I、インバータ
17への電流指令値I* 、誘導電動機18に対するトル
ク指令値、又は誘導電動機のトルク検出値などが使用で
き、通常の制御上に用いられており、新たに検出装置等
を付加する必要はない。また、誘導電動機18の電圧相
当値としては、誘導電動機18の電圧検出値、インバー
タ17への出力電圧指令値E* 、誘導電動機18の速度
検出値V、上記誘導電動機18に対する速度指令値V*
、上記インバータ17の周波数指令値f* 、又は上記
インバータ17の出力周波数fなどが使用でき、これら
も通常の制御上に用いられており、新たに検出装置等を
付加する必要はない。
As the current equivalent value of the induction motor, the output value I of the current detector 31 of the induction motor 18, the current command value I * to the inverter 17, the torque command value to the induction motor 18, or the torque detection of the induction motor. Values and the like can be used and are used for ordinary control, and it is not necessary to add a detection device or the like. As the voltage equivalent value of the induction motor 18, the voltage detection value of the induction motor 18, the output voltage command value E * to the inverter 17, the speed detection value V of the induction motor 18, and the speed command value V * of the induction motor 18 are used.
, The frequency command value f * of the inverter 17 or the output frequency f of the inverter 17 can be used, and these are also used for normal control, and it is not necessary to newly add a detection device or the like.
【0017】上記供給電力の算出値Pが力行側の所定値
を超えると、速度指令作成部35は速度指令値V* の上
昇を抑制して、誘導電動機18への供給電力を抑え、非
常用電源20の放電能力を超えないようにする。
When the calculated value P of the supplied electric power exceeds a predetermined value on the power running side, the speed command preparing section 35 suppresses the increase of the speed command value V * and suppresses the electric power supplied to the induction motor 18 for emergency use. Do not exceed the discharge capacity of the power supply 20.
【0018】図3は本発明の上記一実施例の動作説明図
であり、同図(a)はあるエレベーターにおける従来の
停電時の自動救出運転速度曲線、同図(b)は本発明を
同一エレベーターに適用した場合の停電時の自動救出運
転速度曲線を示す図である。従来、エレベーター乗りか
ご40内に満員の乗客があり、かつ上昇方向に救出運転
しなければならない最悪の状況にも、与えられたバッテ
リで救出運転を余裕をもって可能とするために、最高速
度は図3(a)に示すように、8m/min までしか上げ
られなかったとする。
FIG. 3 is a diagram for explaining the operation of the above embodiment of the present invention. FIG. 3 (a) is a conventional automatic rescue operation speed curve at the time of a power failure in an elevator, and FIG. 3 (b) is the same as the present invention. It is a figure which shows the automatic rescue operation speed curve at the time of a power failure when applied to an elevator. Conventionally, even in the worst situation where there are full passengers in the elevator car 40 and the rescue operation must be performed in the ascending direction, the maximum speed is set to allow the rescue operation with a given battery with a margin. As shown in 3 (a), it is assumed that the speed could only be increased to 8 m / min.
【0019】これに対して、本願発明を適用すれば、最
高速度を、15m/min まで上げることができる。すな
わち、図3(b)に示すように最高速度15m/min の
第1の速度指令V1* を用意しておき、上記誘導電動機
電力Pが所定値(Pmax-α)に達すると、速度指令作成
部35は速度指令V* の上昇を抑制する。したがって、
上記誘導電動機電力Pが所定値(Pmax-α)に達しない
比較的負担の軽い状態での救出運転の場合には、実際の
速度指令も第1の速度指令V1*通りとなって、最高速度
15m/min でもって速やかな救出を実現する。次に、
比較的負担の重い状態での救出運転の場合には、図示す
るように例えば時点t2 で上記誘導電動機電力Pが所定
値(Pmax-α)に達するのでこれ以降、速度指令作成部
35は速度指令V* の上昇を抑制する。このため、実際
の速度指令は、同図実線V* で示すように最高速度を抑
えられる。図示の例では最高速度は10m/min であ
る。前述したように、制御回路30は、秤装置33の出
力を用いて、負担の軽い方向を選んで救出運転を行う。
このため、従来想定した最悪の状態での救出運転が発生
する可能性は極めて低い。このような極めて稀な状況が
発生した場合のみ、同図(a)に示す時点t1 で電力P
が所定値(Pmax-α)に達するので、この場合のみ最高
速度は8m/min に抑えられる。
On the other hand, if the present invention is applied, the maximum speed can be increased to 15 m / min. That is, as shown in FIG. 3B, a first speed command V1 * having a maximum speed of 15 m / min is prepared, and when the induction motor power P reaches a predetermined value (P max-α ), a speed command is issued. The creation unit 35 suppresses the rise of the speed command V *. Therefore,
In the rescue operation in a relatively light load state where the induction motor power P does not reach the predetermined value (P max-α ), the actual speed command also becomes the first speed command V 1 * Realize prompt rescue at a maximum speed of 15 m / min. next,
In the case of rescue operation under a relatively heavy load, the induction motor power P reaches a predetermined value (P max-α ) at the time t 2 as shown in the figure, and hence the speed command generation unit 35 thereafter. Suppress the rise of speed command V *. Therefore, the actual speed command can suppress the maximum speed as indicated by the solid line V * in the figure. In the illustrated example, the maximum speed is 10 m / min. As described above, the control circuit 30 uses the output of the weighing device 33 to select the direction in which the burden is light and perform the rescue operation.
Therefore, it is extremely unlikely that the rescue operation will occur in the worst state conventionally assumed. Only when such an extremely rare situation occurs, the power P at the time t 1 shown in FIG.
Reaches a predetermined value (P max-α ), and only in this case the maximum speed is suppressed to 8 m / min.
【0020】さて、前述したように、負担の軽い方向を
選んで救出運転を行うため、救出運転時のインバータ1
7と誘導電動機18は、力行と回生の機会は半々といえ
る。回生運転時にも力行運転と変わりはなく、上記供給
電力の算出値Pが回生側の所定値を超えると、速度指令
作成部35は速度指令値V* を低下させて、誘導電動機
18からの回生電力を抑え、非常用電源20の入力電流
が過大とならないようにする。一方、上記供給電力の算
出値が所定値より低い時は、速度指令作成部35は速度
指令値V* を予定通り増加させ誘導電動機18への供給
(回生)電力を増やし、非常用電源20の充放電能力を
効率良く使用できるようにする。
As described above, since the rescue operation is performed by selecting the direction in which the burden is light, the inverter 1 during the rescue operation is selected.
7 and the induction motor 18 can be said to have half the opportunities for power running and regeneration. There is no difference from the power running operation during the regenerative operation, and when the calculated value P of the supplied electric power exceeds the predetermined value on the regenerative side, the speed command creation unit 35 lowers the speed command value V * and regenerates from the induction motor 18. The power is suppressed so that the input current of the emergency power supply 20 does not become excessive. On the other hand, when the calculated value of the supplied power is lower than the predetermined value, the speed command creating unit 35 increases the speed command value V * as planned to increase the power supplied (regenerative) to the induction motor 18, and the emergency power supply 20 To enable efficient use of charge / discharge capacity.
【0021】この結果、救出運転時間は、従来の装置が
常に、図3(a)に示す0〜t5 という長時間を要して
いたのに対し、この実施例によれば、図3(b)の0〜
3,0〜t4 等、その時の状況に応じた再短時間で済
むことになる。
As a result, the rescue operation time of the conventional device always required a long time of 0 to t 5 shown in FIG. 0) of b)
It will be a short time again, depending on the situation at that time, such as t 3 , 0 to t 4 .
【0022】この実施例によれば、停電時自動着床運転
時のエネルギー効率の向上と、非常用電源の保護を、簡
易な回路で実現することができる外、常に、可能な限り
高い速度で救出運転することとなり、速やかに乗客を脱
出させることができる。
According to this embodiment, the energy efficiency in the automatic landing operation during a power failure and the protection of the emergency power supply can be realized by a simple circuit, and at a high speed as much as possible at all times. The rescue operation will be performed, and the passengers can be promptly evacuated.
【0023】以上の実施例においては、非常用電源と誘
導電動機間で授受する電力に応じて最高速度を抑制する
ものとしたが、合わせて又は単独に加減速度を抑制する
ようにしても相当の効果が得られる。
In the above embodiments, the maximum speed is suppressed in accordance with the electric power transferred between the emergency power source and the induction motor, but it is also possible to suppress the acceleration / deceleration together or independently. The effect is obtained.
【0024】[0024]
【発明の効果】本発明によれば、停電時自動着床運転時
のエネルギー効率の向上と、非常用電源の保護を、簡易
な装置で実現することができる。
According to the present invention, it is possible to improve the energy efficiency during automatic landing operation during a power failure and protect the emergency power supply with a simple device.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の一実施例によるエレベーター制御装置
の回路構成図である。
FIG. 1 is a circuit configuration diagram of an elevator control device according to an embodiment of the present invention.
【図2】図1における制御回路30の機能構成を示す。FIG. 2 shows a functional configuration of a control circuit 30 in FIG.
【図3】本発明の一実施例の動作説明図であり、同図
(a)はあるエレベーターにおける従来の停電時の自動
救出運転速度曲線、同図(b)は本発明を同一エレベー
ターに適用した場合の停電時の自動救出運転速度曲線を
示す図である。
FIG. 3 is an operation explanatory diagram of an embodiment of the present invention, in which FIG. 3 (a) is a conventional automatic rescue operation speed curve at the time of a power failure in an elevator, and FIG. 3 (b) is the same elevator applied to the present invention. It is a figure which shows the automatic rescue operation speed curve at the time of a power failure in the case of doing.
【符号の説明】[Explanation of symbols]
10…商用交流電源、13…コンバータ、17…インバ
ータ、18…誘導電動機、20…非常用電源、23…補
助インバータ、30…制御手段(制御回路)、31…誘
導電動機の電流相当値検出手段(電流検出器)、32…
誘導電動機の電圧相当値検出手段(速度検出器)、34
…電力算出部、35…速度指令作成部、36…速度制御
部、40…乗りかご、41…釣合い錘。
10 ... Commercial AC power supply, 13 ... Converter, 17 ... Inverter, 18 ... Induction motor, 20 ... Emergency power supply, 23 ... Auxiliary inverter, 30 ... Control means (control circuit), 31 ... Induction motor current equivalent value detection means ( Current detector), 32 ...
Induction motor voltage equivalent value detecting means (speed detector), 34
... power calculation unit, 35 ... speed command creation unit, 36 ... speed control unit, 40 ... car, 41 ... counterweight.

Claims (10)

    【特許請求の範囲】[Claims]
  1. 【請求項1】商用交流電源を直流に変換するコンバータ
    と、上記コンバータ出力を交流に変換しエレベーター駆
    動用の誘導電動機に給電するインバータと、上記インバ
    ータを制御する制御手段と、上記商用交流電源停電時に
    上記インバータ及び上記制御手段へ給電し停電時自動着
    床運転を行うための非常用電源とを備えたエレベーター
    の制御装置において、上記誘導電動機の電流相当値を検
    出する手段と、上記誘導電動機の電圧相当値を検出する
    手段と、上記自動着床運転時に上記誘導電動機の電流相
    当値と電圧相当値に基づいてエレベーターの運転速度を
    制御する手段を備えたことを特徴とするエレベーターの
    制御装置。
    1. A converter for converting a commercial AC power supply into a DC power supply, an inverter for converting the converter output into an AC power supply to feed an induction motor for driving an elevator, a control means for controlling the inverter, and a commercial AC power supply power failure. In an elevator control device equipped with an emergency power supply for supplying power to the inverter and the control means at times to perform automatic landing operation during a power failure, means for detecting a current equivalent value of the induction motor, and the induction motor An elevator control device comprising: means for detecting a voltage equivalent value; and means for controlling an operating speed of the elevator based on a current equivalent value and a voltage equivalent value of the induction motor during the automatic landing operation.
  2. 【請求項2】上記運転速度を制御する手段は、上記誘導
    電動機の電流相当値と電圧相当値に基づいて上記エレベ
    ーターの運転速度を制限する手段である請求項1記載の
    エレベーターの制御装置。
    2. The elevator control apparatus according to claim 1, wherein the means for controlling the operating speed is means for limiting the operating speed of the elevator based on a current equivalent value and a voltage equivalent value of the induction motor.
  3. 【請求項3】上記運転速度を制御する手段は、上記誘導
    電動機の電流相当値と電圧相当値の積が所定値を超えな
    いように上記エレベーターの運転速度を制限する手段で
    ある請求項1又は2記載のエレベーターの制御装置。
    3. The means for controlling the operating speed is means for limiting the operating speed of the elevator so that the product of the current equivalent value and the voltage equivalent value of the induction motor does not exceed a predetermined value. The elevator control device described in 2.
  4. 【請求項4】商用交流電源を直流に変換するコンバータ
    と、上記コンバータ出力を交流に変換しエレベーター駆
    動用の誘導電動機に給電するインバータと、上記インバ
    ータを制御する制御手段と、上記商用交流電源停電時に
    上記インバータ及び上記制御手段へ給電し停電時自動着
    床運転を行うための非常用電源とを備えたエレベーター
    の制御装置において、上記誘導電動機の電流相当値を検
    出する手段と、上記誘導電動機の電圧相当値を検出する
    手段と、上記自動着床運転時に上記誘導電動機の電流相
    当値と電圧相当値に基づいてエレベーターの加速度を制
    御する手段を備えたことを特徴とするエレベーターの制
    御装置。
    4. A converter for converting a commercial AC power supply into a DC power supply, an inverter for converting the converter output into an AC power supply to an induction motor for driving an elevator, control means for controlling the inverter, and the commercial AC power supply power failure. In an elevator control device equipped with an emergency power supply for supplying power to the inverter and the control means at times to perform automatic landing operation during a power failure, means for detecting a current equivalent value of the induction motor, and the induction motor An elevator control apparatus comprising: a unit for detecting a voltage equivalent value; and a unit for controlling an elevator acceleration based on a current equivalent value and a voltage equivalent value of the induction motor during the automatic landing operation.
  5. 【請求項5】上記加速度を制御する手段は、上記誘導電
    動機の電流相当値と電圧相当値に基づいて上記エレベー
    ターの加速度を制限する手段である請求項4記載のエレ
    ベーターの制御装置。
    5. The elevator control apparatus according to claim 4, wherein the means for controlling the acceleration is means for limiting the acceleration of the elevator based on a current equivalent value and a voltage equivalent value of the induction motor.
  6. 【請求項6】上記加速度を制御する手段は、上記誘導電
    動機の電流相当値と電圧相当値の積が所定値を超えない
    ように上記エレベーターの加速度を制限する手段である
    請求項4又は5記載のエレベーターの制御装置。
    6. The means for controlling the acceleration is a means for limiting the acceleration of the elevator so that the product of the current equivalent value and the voltage equivalent value of the induction motor does not exceed a predetermined value. Elevator control device.
  7. 【請求項7】上記誘導電動機の電流相当値は、上記誘導
    電動機の電流検出値、上記インバータへの電流指令値、
    上記誘導電動機に対するトルク指令値、又は上記誘導電
    動機のトルク検出値である請求項1〜5又は6記載のエ
    レベーターの制御装置。
    7. The current equivalent value of the induction motor is a current detection value of the induction motor, a current command value to the inverter,
    The elevator control device according to claim 1, which is a torque command value for the induction motor or a torque detection value of the induction motor.
  8. 【請求項8】上記誘導電動機の電圧相当値は、上記誘導
    電動機の電圧検出値、上記インバータへの出力電圧指令
    値、上記誘導電動機の速度検出値、上記誘導電動機に対
    する速度指令値、上記インバータの周波数指令値、又は
    上記インバータの出力周波数検出値である請求項1〜6
    又は7記載のエレベーターの制御装置。
    8. The voltage equivalent value of the induction motor includes a voltage detection value of the induction motor, an output voltage command value to the inverter, a speed detection value of the induction motor, a speed command value for the induction motor, and an inverter voltage value. The frequency command value or the output frequency detection value of the inverter.
    Or the elevator control device according to 7.
  9. 【請求項9】商用交流電源を直流に変換するコンバータ
    と、上記コンバータ出力を交流に変換しエレベーター駆
    動用の誘導電動機に給電するインバータと、上記誘導電
    動機の回転速度を検出する手段と、上記誘導電動機に流
    れる電流を検出する手段と、上記速度検出値及び上記電
    流検出値を入力し上記インバータを制御する制御手段
    と、上記商用交流電源停電時に上記インバータ及び上記
    制御手段へ給電し停電時自動着床運転を行うための非常
    用電源とを備えたエレベーターの制御装置において、上
    記自動着床運転時に上記速度検出値及び上記電流検出値
    を入力する演算手段と、この演算手段の出力が所定値以
    内となるようにエレベーターの速度指令を制限する手段
    を備えたことを特徴とするエレベーターの制御装置。
    9. A converter for converting a commercial AC power source into a direct current, an inverter for converting the converter output into an alternating current to supply power to an induction motor for driving an elevator, a means for detecting a rotation speed of the induction motor, and the induction. A means for detecting a current flowing through the electric motor, a control means for inputting the speed detection value and the current detection value to control the inverter, a power supply to the inverter and the control means at the time of the commercial AC power failure, and automatic arrival at the time of the power failure. In an elevator control device equipped with an emergency power supply for floor operation, a calculating means for inputting the speed detection value and the current detection value during the automatic landing operation, and the output of the calculating means is within a predetermined value. An elevator control device comprising means for limiting an elevator speed command so that
  10. 【請求項10】上記演算手段は、上記速度検出値及び上
    記電流検出値に基づいて、上記非常用電源と誘導電動機
    間で授受される電力を演算する手段を含む請求項9記載
    のエレベーターの制御装置。
    10. The elevator control according to claim 9, wherein the arithmetic means includes means for arithmetically operating the electric power transferred between the emergency power source and the induction motor based on the speed detection value and the current detection value. apparatus.
JP7154345A 1995-06-21 1995-06-21 Elevator control device Pending JPH092753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7154345A JPH092753A (en) 1995-06-21 1995-06-21 Elevator control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7154345A JPH092753A (en) 1995-06-21 1995-06-21 Elevator control device

Publications (1)

Publication Number Publication Date
JPH092753A true JPH092753A (en) 1997-01-07

Family

ID=15582135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7154345A Pending JPH092753A (en) 1995-06-21 1995-06-21 Elevator control device

Country Status (1)

Country Link
JP (1) JPH092753A (en)

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US6315081B1 (en) 1998-12-15 2001-11-13 Lg Industrial Systems Co., Ltd. Apparatus and method for controlling operation of elevator in power failure
JP2003529511A (en) * 2000-03-31 2003-10-07 インベンテイオ・アクテイエンゲゼルシヤフト Apparatus and method for reducing the power connection rating of an elevator installation
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WO2005105647A1 (en) * 2004-04-27 2005-11-10 Mitsubishi Denki Kabushiki Kaisha Elevator apparatus
WO2007007637A1 (en) * 2005-07-11 2007-01-18 Toshiba Elevator Kabushiki Kaisha Speed control device, speed control method, and speed control program for elevator
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US6315081B1 (en) 1998-12-15 2001-11-13 Lg Industrial Systems Co., Ltd. Apparatus and method for controlling operation of elevator in power failure
KR100429345B1 (en) * 2000-02-28 2004-04-29 미쓰비시덴키 가부시키가이샤 Controller of elevator
JP2003529511A (en) * 2000-03-31 2003-10-07 インベンテイオ・アクテイエンゲゼルシヤフト Apparatus and method for reducing the power connection rating of an elevator installation
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US7637353B2 (en) 2006-05-16 2009-12-29 Mitsubishi Electric Corporation Control device for elevator
KR101242527B1 (en) * 2008-07-25 2013-03-12 오티스 엘리베이터 컴파니 Method for operating an elevator in an emergency mode
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US8631908B2 (en) 2008-07-25 2014-01-21 Otis Elevator Company Elevator system and associated method including power control for operating an elevator in an emergency mode
CN102198900A (en) * 2010-03-23 2011-09-28 上海三菱电梯有限公司 Backup source operation control system of energy feedback elevator
CN102351121A (en) * 2011-10-01 2012-02-15 西子联合控股有限公司 Elevator emergency evacuation device and an elevator emergency evacuation method
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