JPH04371470A - Speed control device for elevator - Google Patents

Speed control device for elevator

Info

Publication number
JPH04371470A
JPH04371470A JP3150063A JP15006391A JPH04371470A JP H04371470 A JPH04371470 A JP H04371470A JP 3150063 A JP3150063 A JP 3150063A JP 15006391 A JP15006391 A JP 15006391A JP H04371470 A JPH04371470 A JP H04371470A
Authority
JP
Japan
Prior art keywords
signal
acceleration
output
inverter
speed control
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
JP3150063A
Other languages
Japanese (ja)
Inventor
Katsumi Ohira
克己 大平
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3150063A priority Critical patent/JPH04371470A/en
Publication of JPH04371470A publication Critical patent/JPH04371470A/en
Pending legal-status Critical Current

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  • Elevator Control (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To obtain a speed control device for elevator with favorable operation efficiency by controlling with a inverter driving device with small converter capacity so that high acceleration operation is done only at limited operation. CONSTITUTION:An output of a three-phase alternating current power source 1 is converted to a direct current by a converter 3, a direct current output of the converter 3 is converted to an alternating current by an inverter 5, a lifting motor 6 is driven by the alternating current output of the inverter 5 and a cage 10 is elevated up and down through a sheave 7 directly connected to the motor. A signal PA of a pattern generating device 11 to which a signal PD of a call registering device 20, a signal IA from an electric current detector 13 and a signal PB from a taco generator 12 are input to a regulator 14 to calculate its output PC, which is taken in by the inverter 5 for speed control of the cage 10. By this, as acceleration is not raised during high-speed operation, there is no need to increase a converter capacity, which can realize a low-cost device.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】この発明は、パルス幅変調された
信号によって作動するインバータ出力によりり、かごの
加速度を制御するエレベータの速度制御装置に関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator speed control system for controlling the acceleration of a car using an inverter output operated by a pulse width modulated signal.

【0002】0002

【従来の技術】例えば、特公昭56−49832号公報
に開示されているように、エレベータのかご室内の乗客
の有無を検出して、乗客有りの検出の場合は通常の速度
指令を出力し、乗客無しの場合はかご室の加速度を上げ
て、エレベータの運転能率を向上させる速度制御装置が
ある。
2. Description of the Related Art For example, as disclosed in Japanese Patent Publication No. 56-49832, the presence or absence of a passenger in an elevator car is detected, and if the presence of a passenger is detected, a normal speed command is output. There is a speed control device that increases the acceleration of the elevator car when there are no passengers, improving the operating efficiency of the elevator.

【0003】0003

【発明が解決しようとする課題】インバータの出力によ
りかごを昇降させるエレベータ装置では、インバータの
容量はトルク電流(加速度)の大きさによって決まり、
また、コンバータの容量はインバータに供給する電力で
あるインバータ電流(トルク電流)と電圧との積で決ま
る。この電圧の大きさは加速度には関係なく速度に比例
するものであるから、かごの高速度運転時に加速度を上
げるような制御を行うためには直流電力を供給するコン
バータの容量が大きくなり、高コストとなるという問題
がある。
[Problem to be Solved by the Invention] In an elevator system that raises and lowers a car using the output of an inverter, the capacity of the inverter is determined by the magnitude of torque current (acceleration).
Further, the capacity of the converter is determined by the product of the inverter current (torque current), which is the power supplied to the inverter, and the voltage. The magnitude of this voltage is independent of acceleration and is proportional to speed, so in order to control the car to increase acceleration during high-speed operation, the capacity of the converter that supplies DC power must be increased, and the There is a problem of cost.

【0004】この発明は上記のような課題を解決するた
めになされたもので、コンバータの容量が比較的に小さ
くても、限られたかごの運転時にのみ高加速度にするよ
うにして、低コストで運転能率の良いエレベータの速度
制御装置を得ることを目的とする。
[0004] This invention was made to solve the above-mentioned problems, and even if the capacity of the converter is relatively small, high acceleration is achieved only during limited car operation, thereby reducing costs. The purpose of this invention is to obtain an elevator speed control device with good operating efficiency.

【0005】[0005]

【課題を解決するための手段】この発明に係るエレベー
タの速度制御装置は、呼び登録装置よりの呼び信号に応
じて、隣接階への信号であれば高加速度とし、遠隔階よ
りの信号であれば低加速度とする演算を行ってかごの昇
降速度を制御する速度制御手段を備えたものである。
[Means for Solving the Problems] An elevator speed control device according to the present invention applies high acceleration in response to a call signal from a call registration device if the signal is for an adjacent floor, and applies high acceleration even if the signal is from a remote floor. For example, the car is equipped with a speed control means that performs calculations to obtain a low acceleration and controls the elevator speed of the car.

【0006】また、上記速度制御手段は、指令速度信号
が設定値を超えると高加速度運転より低加速度運転に切
替わる演算を行う加速度切換手段を備えたものである。
[0006] The speed control means also includes acceleration switching means that performs a calculation to switch from high acceleration operation to low acceleration operation when the command speed signal exceeds a set value.

【0007】[0007]

【作用】この発明においては、呼び登録装置よりの呼び
信号が隣接階への呼びであれば高加速度運転に、また遠
隔階への呼びであれば低加速度運転にする演算を行い、
この演算結果による指令速度信号を速度制御手段に入力
させる。また、上記加速度切替手段によって、指令速度
信号が規定値を超えるようであれば高加速度運転より低
加速度運転に切替わる演算を行う。
[Operation] In this invention, if the call signal from the call registration device is a call to an adjacent floor, high acceleration operation is performed, and if the call is to a remote floor, calculation is performed to perform low acceleration operation,
A command speed signal based on this calculation result is input to the speed control means. Further, the acceleration switching means performs a calculation to switch from high acceleration operation to low acceleration operation if the command speed signal exceeds a specified value.

【0008】[0008]

【実施例】図1はこの発明に係るエレベータの速度制御
装置の全体構成を示すブロック図、図2は図1における
レギュレータの構成を示すブロック図、図3は同じくマ
イクロコンピュータから成るパターン発生装置のブロッ
ク図である。図1〜図3において、1は三相交流電源、
2は開閉器、3は三相交流電源1よりの交流を直流に変
換するコンバータ、4は平滑用のコンデンサ、5は直流
を交流に変換するインバータ、6は巻上電動機、7は綱
車で、主ロープ9によってかご10及びつり合い錘8を
釣荷している。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the overall configuration of an elevator speed control device according to the present invention, FIG. 2 is a block diagram showing the configuration of the regulator in FIG. 1, and FIG. It is a block diagram. In FIGS. 1 to 3, 1 is a three-phase AC power supply,
2 is a switch, 3 is a converter that converts AC from the three-phase AC power supply 1 into DC, 4 is a smoothing capacitor, 5 is an inverter that converts DC to AC, 6 is a hoisting motor, and 7 is a sheave. , a car 10 and a counterweight 8 are loaded by a main rope 9.

【0009】11はCPU30、ROM33、RAM3
4及び入出力ポート32からなるパターン発生装置、2
はタコジェネレータ、13はインバータ5の出力電流を
検出する電流検出器である。14はレギュレータで、パ
ータン発生装置11の出力PA及びタコジェネレータ1
2の出力が入力する電流指令回路15と、この出力IB
と電流検出器13の出力との差を演算する減算回路16
と、増幅器17と、増幅器17の出力を受けてパルス幅
変調のパルス幅を出力するPWM回路18と、ベースア
ンプ19とからなっている。20は呼び釦操作による信
号を受けてパータン発信器11に出力PDを入力する呼
び登録装置である。
[0009] 11 is CPU 30, ROM 33, RAM 3
4 and an input/output port 32;
1 is a tacho generator, and 13 is a current detector that detects the output current of the inverter 5. 14 is a regulator, which outputs PA of the pattern generator 11 and the tacho generator 1;
A current command circuit 15 to which the output of No. 2 is input, and this output IB
and the output of the current detector 13.
, an amplifier 17 , a PWM circuit 18 that receives the output of the amplifier 17 and outputs a pulse width modulated pulse width, and a base amplifier 19 . Reference numeral 20 denotes a call registration device which receives a signal from a call button operation and inputs an output PD to the pattern transmitter 11.

【0010】次に、上記の構成に基づいて動作を説明す
る。三相交流電源1からの三相交流出力を開閉器2を介
してコンバータ3に入力し、三相交流出力を直流出力に
変換し、この直流出力をコンデンサ4で平滑して逆変換
器であるインバータ5に入力し、後述するベースドライ
ブ信号PCに応じて駆動されるインバータ5で変換した
三相交流出力を巻上電動機6に印加して駆動する。それ
によって、この巻上電動機6の回転軸に連結した綱車7
が回転するので、この綱車7に巻回されて一端につり合
い錘8を吊り、他端にかご10を吊っている主ロープ9
を介してかご10を昇降させる。
Next, the operation will be explained based on the above configuration. The three-phase AC output from the three-phase AC power supply 1 is input to the converter 3 via the switch 2, which converts the three-phase AC output into a DC output, and this DC output is smoothed by a capacitor 4 to form an inverse converter. A three-phase AC output, which is input to the inverter 5 and converted by the inverter 5 which is driven in accordance with a base drive signal PC to be described later, is applied to the hoisting motor 6 to drive it. As a result, the sheave 7 connected to the rotating shaft of the hoisting motor 6
, the main rope 9 is wound around the sheave 7 and suspends the counterweight 8 at one end and the car 10 at the other end.
The car 10 is raised and lowered via the.

【0011】一方、かご10の速度パターンを発生させ
るマイクロコンピュータから成るパターン発生装置11
では、呼び登録装置20よりの信号が入力し、図4のフ
ローチャートに示すように手順101でエレベータの呼
びがあるかを判定し、呼びがなければ手順101で呼び
の信号を待ち、呼びがあれば手順102に進み、隣接階
への呼びでなければ、手順103に進んで低加速走行と
なる指令速度を演算した指令速度信号PAをレギュレー
タ14に出力する。また、隣接階への呼びであれば手順
104に進んで高加速度走行となる指令速度を演算した
指令速度信号PAを出力し、手順103,104後はそ
れぞれ次回の走行のために手順101に戻る。
On the other hand, a pattern generator 11 consisting of a microcomputer generates a speed pattern of the car 10.
Then, a signal from the call registration device 20 is input, and as shown in the flowchart of FIG. 4, it is determined in step 101 whether there is an elevator call, and if there is no call, it is waited for a call signal in step 101, and if there is a call, it is determined. If the call is not for an adjacent floor, the process proceeds to step 103 and outputs a command speed signal PA, which calculates a command speed for low-acceleration travel, to the regulator 14. If the call is to an adjacent floor, the process proceeds to step 104 and outputs a command speed signal PA that calculates the command speed for high-acceleration travel, and after steps 103 and 104, returns to step 101 for the next run. .

【0012】図5はパターン発生装置11における指令
速度演算の他の動作の例を示すフローチャートである。 先ず、手順201で高加速度走行認識フラグHACCを
1にして、手順202でHACCが1であるかを判定す
る。1でなければ既に高加速度走行でないと認識してい
るとして、手順206の低加速走行となる指令速度信号
の出力演算に進む。また、1であれば手順203でRA
M34に格納してある指令速度信号の出力値が、コンバ
ータ容量の制限から決まる規定値を超えているかを判定
し、超えていなければ手順204で高加速度走行となる
指令速度信号の演算を行なって出力し、処理手順を手順
202へ移す。また、超えていれば手順205でHAC
Cを0にして高加速度走行の認識をやめ、手順206で
低加速度走行となる指令速度信号の演算を行なって出力
し、処理手順を手順202へ移す。
FIG. 5 is a flowchart showing another example of the command speed calculation in the pattern generator 11. First, in step 201, the high acceleration running recognition flag HACC is set to 1, and in step 202, it is determined whether HACC is 1. If it is not 1, it is assumed that it is already recognized that the vehicle is not running at high acceleration, and the process proceeds to Step 206, which is the output calculation of the command speed signal that will result in running at low acceleration. Also, if it is 1, in step 203 the RA
It is determined whether the output value of the command speed signal stored in M34 exceeds a specified value determined by the limit of the converter capacity, and if it does not, the command speed signal that causes high acceleration driving is calculated in step 204. The process proceeds to step 202. In addition, if it exceeds the HAC in step 205.
C is set to 0 to stop recognition of high acceleration running, and in step 206 a command speed signal for low acceleration running is calculated and output, and the processing procedure moves to step 202.

【0013】以上のパターン発生装置11における高加
速度あるいは低加速度となる演算の結果で得られた指令
速度信号PAと、巻上電動機6の回転速度、即ちかご1
0の走行速度を検出するタコジェネレータ12からの検
出速度信号PB及びインバータ5の三相出力電流を検出
する電流検出器13からの帰還信号である検出電流信号
IAとがレギュレータ14に入力すると、図2に示すよ
うに、電流指令回路15で指令速度信号PAと検出速度
信号PBとを比較演算し、さらにこの演算で得られた指
令電流信号IBと検出電流信号IAとの差を減算回路1
6で演算し、この出力を増幅器17で増幅してPWM回
路18、ベースアンプ19を経てインバータ5にベース
ドライブ信号PCが入力する。
The command speed signal PA obtained as a result of the calculation resulting in high acceleration or low acceleration in the pattern generator 11 and the rotational speed of the hoisting motor 6, that is, the car 1
When the detected speed signal PB from the tacho generator 12 which detects the running speed of 0 and the detected current signal IA which is the feedback signal from the current detector 13 which detects the three-phase output current of the inverter 5 are input to the regulator 14, as shown in FIG. 2, the current command circuit 15 compares and calculates the command speed signal PA and the detected speed signal PB, and furthermore, the difference between the command current signal IB and the detected current signal IA obtained by this calculation is calculated by the subtraction circuit 1.
6, the output is amplified by an amplifier 17, and a base drive signal PC is input to the inverter 5 via a PWM circuit 18 and a base amplifier 19.

【0014】かご10の加速度の設定値となる指令速度
信号PAに基づき、パルス幅変調されたベースドライブ
信号PCによりインバータ5が駆動されると、インバー
タ5からの三相出力電流値に応じた加速度で巻上電動機
6が回転する。かご10の速度、加速度と時間との関係
は、パターン発生装置11の第1の実施例である図4の
動作で得られた指令速度信号PAにより、それぞれの加
速度の上限が抑制された図6の線図に示すように、手順
102で隣接階への呼びがあれば高加速度にする指令速
度信号に伴う高加速度の変化、同じく隣接階への呼びで
なければ低加速度にする指令速度信号に伴う低加速度の
変化の特性が得られる。また、パターン発生装置11の
第2の実施例である図5の動作で得られた指令速度信号
PAにより、図7の線図に示すように手順203で指令
速度信号が規定値に達すると、高加速度にする指令速度
信号より低加速度にする指令速度信号に切替わり、この
信号の切替わりに応じた高加速度より低加速度になる特
性が得られる。
When the inverter 5 is driven by the pulse-width modulated base drive signal PC based on the command speed signal PA which is the set value for the acceleration of the car 10, the acceleration corresponds to the three-phase output current value from the inverter 5. The hoisting motor 6 rotates. The relationship between the speed, acceleration, and time of the car 10 is as shown in FIG. 6, in which the upper limit of each acceleration is suppressed by the command speed signal PA obtained in the operation of FIG. As shown in the diagram, in step 102, if there is a call to an adjacent floor, the high acceleration will change with the command speed signal that causes high acceleration, and if there is no call to the adjacent floor, the command speed signal will change to low acceleration. Characteristics of low acceleration changes are obtained. Further, when the command speed signal PA obtained in the operation of FIG. 5, which is the second embodiment of the pattern generator 11, reaches the specified value in step 203 as shown in the diagram of FIG. The command speed signal for high acceleration is switched to the command speed signal for low acceleration, and a characteristic is obtained in which the high acceleration is changed to low acceleration in accordance with the switching of the signal.

【0015】[0015]

【発明の効果】以上のように、この発明によれば、かご
の加速度の設定値となるパターン発生装置の出力である
指令速度信号を、呼び登録よりの信号に応じてかごの加
速度の高,低を定め、また、上記指令速度信号がコンバ
ータ容量の制限で決まる設定値を超えると高加速走行よ
り低加速走行に切替わるようにして、かごの昇降時の加
速度を所定値以上にならないようにしたので、かごの速
度と加速度との積の大きさを制約でき、比較的小さい容
量のコンバータによりかごの運転を行なうことができ、
コストが安く運転能率の高いエレベータの速度制御装置
が得られる。
As described above, according to the present invention, the command speed signal, which is the output of the pattern generator, which is the set value of the car acceleration, is adjusted according to the signal from the call registration. In addition, when the command speed signal exceeds a set value determined by the converter capacity limit, high acceleration travel is switched to low acceleration travel, so that the acceleration when raising and lowering the car does not exceed a predetermined value. Therefore, the size of the product of car speed and acceleration can be restricted, and the car can be operated with a relatively small capacity converter.
An elevator speed control device that is low in cost and has high operating efficiency can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

【図1】この発明の実施例の全体構成を示すブロック図
である。
FIG. 1 is a block diagram showing the overall configuration of an embodiment of the invention.

【図2】図1におけるレギュレータの構造を示すブロッ
ク図である。
FIG. 2 is a block diagram showing the structure of the regulator in FIG. 1.

【図3】同じくパターン発生装置の構成を示すブロック
図である。
FIG. 3 is a block diagram showing the configuration of the pattern generator.

【図4】パターン発生装置の第1実施例の動作を示すフ
ローチャートである。
FIG. 4 is a flowchart showing the operation of the first embodiment of the pattern generator.

【図5】同じく第2実施例の動作を示すフローチャート
である。
FIG. 5 is a flowchart showing the operation of the second embodiment.

【図6】図4の第1実施例の動作により得られる速度−
時間及び加速度−時間の関係を示す線図である。
[Fig. 6] Speed obtained by the operation of the first embodiment shown in Fig. 4.
FIG. 3 is a diagram showing the relationship between time and acceleration-time.

【図7】図5の第2実施例の動作により得られる速度−
時間及び加速度−時間の関係を示す線図である。
[FIG. 7] Speed obtained by the operation of the second embodiment shown in FIG.
FIG. 3 is a diagram showing the relationship between time and acceleration-time.

【符号の説明】[Explanation of symbols]

3  コンバータ 5  インバータ 6  巻上電動機 7  綱車 9  ロープ 10  かご 11  パターン発生装置 14  レギュレータ 20  呼び登録装置 3 Converter 5 Inverter 6 Hoisting motor 7 Sheave 9 Rope 10 Basket 11 Pattern generator 14 Regulator 20 Call registration device

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】  交流を直流に変換するコンバータと、
このコンバータの直流出力を交流に変換してその出力で
巻上電動機を駆動するインバータと、上記巻上電動機の
駆動によって回転しロープを介してかごを昇降させる綱
車とを備え、上記かごを呼ぶ呼び登録装置と、この呼び
登録装置よりの呼び信号が隣接階への信号であれば高加
速度とし、遠隔階への信号であれば低加速度になるよう
な演算を行って上記かごの昇降速度を制御する速度制御
手段とを備えたことを特徴とするエレベータの速度制御
装置。
[Claim 1] A converter that converts alternating current to direct current,
The car is equipped with an inverter that converts the DC output of this converter into AC and drives a hoisting motor with the output, and a sheave that rotates by the drive of the hoisting motor and raises and lowers the car via a rope. A call registration device and a calculation are performed such that if the call signal from the call registration device is a signal to an adjacent floor, it will be a high acceleration, and if it is a signal to a remote floor, it will be a low acceleration, and the elevator speed of the car is determined. 1. A speed control device for an elevator, comprising speed control means for controlling the speed.
【請求項2】  速度制御手段は、指令速度信号が規定
値を超えると高加速度運転より低加速度運転に切替わる
演算を行う加速度切替手段を備えていることを特徴とす
る請求項1記載のエレベータの速度制御装置。
2. The elevator according to claim 1, wherein the speed control means includes acceleration switching means that performs a calculation to switch from high acceleration operation to low acceleration operation when the command speed signal exceeds a specified value. speed control device.
JP3150063A 1991-06-21 1991-06-21 Speed control device for elevator Pending JPH04371470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3150063A JPH04371470A (en) 1991-06-21 1991-06-21 Speed control device for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3150063A JPH04371470A (en) 1991-06-21 1991-06-21 Speed control device for elevator

Publications (1)

Publication Number Publication Date
JPH04371470A true JPH04371470A (en) 1992-12-24

Family

ID=15488704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3150063A Pending JPH04371470A (en) 1991-06-21 1991-06-21 Speed control device for elevator

Country Status (1)

Country Link
JP (1) JPH04371470A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848931A (en) * 2012-09-14 2013-01-02 天津大学 Energy source system structure of electric automobile
CN110803592A (en) * 2019-11-22 2020-02-18 上海辛格林纳新时达电机有限公司 Elevator control method, device and computer readable storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369344A (en) * 1976-12-01 1978-06-20 Mitsubishi Electric Corp Speed control device for elevator
JPH01299177A (en) * 1988-05-24 1989-12-01 Mitsubishi Electric Corp Device for controlling elevator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369344A (en) * 1976-12-01 1978-06-20 Mitsubishi Electric Corp Speed control device for elevator
JPH01299177A (en) * 1988-05-24 1989-12-01 Mitsubishi Electric Corp Device for controlling elevator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848931A (en) * 2012-09-14 2013-01-02 天津大学 Energy source system structure of electric automobile
CN110803592A (en) * 2019-11-22 2020-02-18 上海辛格林纳新时达电机有限公司 Elevator control method, device and computer readable storage medium
CN110803592B (en) * 2019-11-22 2022-02-18 上海辛格林纳新时达电机有限公司 Elevator control method, device and computer readable storage medium

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