JPH01252194A - Method of adjusting inverter - Google Patents
Method of adjusting inverterInfo
- Publication number
- JPH01252194A JPH01252194A JP63079308A JP7930888A JPH01252194A JP H01252194 A JPH01252194 A JP H01252194A JP 63079308 A JP63079308 A JP 63079308A JP 7930888 A JP7930888 A JP 7930888A JP H01252194 A JPH01252194 A JP H01252194A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- adjustment
- control
- current
- test
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 230000006698 induction Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
Landscapes
- Elevator Control (AREA)
- Control Of Ac Motors In General (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ、産業上の利用分野
本発明は、インバータと誘導電動機によるエレベータ駆
動装置に係り、特にインバータの調整方法に関する。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to an elevator drive system using an inverter and an induction motor, and more particularly to a method for adjusting an inverter.
Ｂ０発明の概要
本発明はエレベータの組み立て後にインバータの調整を
行うにおいて、
誘導電動機の回転ロックした状態でインバータの周波数
と電流又は電圧を制御することで該インバータの調整を
行うことにより、
確実、容易な調整ができるようにしたものである。B0 Summary of the Invention The present invention provides reliable and easy adjustment of the inverter after assembling the elevator by controlling the frequency and current or voltage of the inverter while the rotation of the induction motor is locked. This allows for adjustments to be made.
Ｃ０従来の技術
最近のエレベータ駆動装置は、殆どが誘導電動機とイン
バータの組み合わせに構成され、速度パターンに従った
インバータの出力周波数制御系と、出力電圧又は電流の
制御系を有して誘導電動機を運転し、該電動機によって
巻上機を駆動することで乗車かごの昇降を得る。C0 PRIOR TECHNOLOGY Most recent elevator drive systems are constructed with a combination of an induction motor and an inverter, and have an inverter output frequency control system according to a speed pattern and an output voltage or current control system to control the induction motor. The electric motor drives the hoisting machine to raise and lower the car.
このようなエレベータ駆動装置において、インバータ出
力の各相電圧又は電流のアンバランス、直流分重畳、さ
らには波形歪みは電動機にトルクリップルとして表れる
。このトルクリップルはエレベータの乗車かごに振動を
発生させ、制御性や乗り心地を悪くすることがある。In such an elevator drive device, unbalance of each phase voltage or current of the inverter output, DC component superposition, and further waveform distortion appear in the motor as torque ripple. This torque ripple causes vibrations in the elevator car, which can impair controllability and ride comfort.
そこで、従来からインバータ各相の電流制御系又は電圧
制御系を構成する回路部品の精度を高くして各相の出力
電流、電圧をバランスさせ、またＰＷＭ制御等による波
形改善を行う方法がある。Therefore, conventionally, there is a method of increasing the precision of circuit components constituting the current control system or voltage control system of each phase of the inverter, balancing the output current and voltage of each phase, and improving the waveform by PWM control or the like.
この方法は、インバータさらには電動機までも高精度に
管理、製作する必要があることから高価な装置になる問
題があった。This method has the problem that it becomes an expensive device because it is necessary to control and manufacture the inverter and even the electric motor with high precision.
従来の他の方法としては、エレベータ装置として組み立
て後に、乗車かご昇降試験中にインバータの各相バラン
ス等を調整する方法がある。この現物対応の調整は、イ
ンバータ及び電動機のアンバランス等を制御装置側で補
償することにより、インバータの回路部品等の管理及び
装置製作を容易にする。Another conventional method is to adjust the balance of each phase of the inverter during a car up/down test after assembling the elevator system. This actual adjustment facilitates the management of inverter circuit components and equipment manufacturing by compensating for unbalance of the inverter and electric motor on the control device side.
Ｄ１発明が解決しようとする課題 従来の現物対応の調整方法には以下の問題点かある。Problems that the D1 invention attempts to solve The conventional adjustment method for in-kind items has the following problems.
エレベータは、建屋に組み込んだ後には電動機。Elevators are equipped with electric motors after they are built into the building.
巻上機１乗車かご等の機械系が一体不可分となり、エレ
ベータとして試験動作させることができるも、電動機単
体をインバータで試験運転することができない。そして
、エレベータの乗車かごは最上階から最下階までしか運
行できない。このような制約から、調整時には乗車かど
の最上階と最下階までの短い時間内でアンバランス等を
測定・調整しなければならないという難しさがある。さ
らに、乗車かごの位置によって電動機電流ら変化するこ
とが多く、この場合には各相のアンバランスや波形歪み
等は殆ど測定できず、調整不可能となる。Mechanical systems such as the hoist 1 and the car are inseparable and can be tested as an elevator, but the electric motor alone cannot be tested with an inverter. Furthermore, elevator cars can only operate from the top floor to the bottom floor. Due to these constraints, it is difficult to measure and adjust imbalances and the like within a short period of time between the top and bottom floors of the boarding corner. Furthermore, the motor current often changes depending on the position of the car, and in this case, unbalance of each phase, waveform distortion, etc. can hardly be measured and adjustment becomes impossible.
このような問題には、エレベータを低速運転状態にして
運転時間を長くすることが考えられるが、このときのイ
ンバータ出力周波数が低くなり、その波形歪み等には測
定器の指針振れや測定精度の低下になって正確な測定ひ
いては調整が困難になる。A possible solution to this problem is to put the elevator in a low-speed operating state and increase the operating time, but at this time the inverter output frequency becomes low, and the resulting waveform distortion may cause the pointer of the measuring instrument to oscillate and the measurement accuracy to be affected. As a result, accurate measurement and adjustment become difficult.
なお、電動機をエレベータ装置に組み込む前にインバー
タと結合し、電流制御特性等を調整しておくことが考え
られるか、これはエレベータ装置として組み立て終了後
の故障修理等に対応できず、上述の問題点解消にはなり
得ない。Is it possible to combine the electric motor with an inverter and adjust the current control characteristics etc. before assembling the motor into the elevator system? This would not be able to deal with troubleshooting after the elevator system has been assembled, and would solve the problem mentioned above. It cannot be a solution to the problem.
本発明の目的は、エレベータ装置の組み立て後に比較的
容゛易にしかも正確な調整になる調整方法を提供するに
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide an adjustment method that allows relatively easy and accurate adjustment after assembly of an elevator system.
Ｅ１課題を解決するための手段
本発明は上記目的を達成するために、インバータ運転さ
れる誘導電動機によってエレベータの機構系を駆動する
エレベータ駆動装置において、前記インバータの制御部
は通常制御から試験制御に切り換えられたときに誘導電
動機を回転ロックした状態で指令周波数かつ指令電流又
は電圧に一致するインバータの出力制御を行い、この状
態でインバータの調整を行うようにしたことを特徴とす
る。E1 Means for Solving the Problems In order to achieve the above object, the present invention provides an elevator drive device that drives an elevator mechanical system by an induction motor operated by an inverter, in which the control section of the inverter changes from normal control to test control. When switched, the inverter output is controlled to match the command frequency and command current or voltage with the induction motor locked in rotation, and the inverter is adjusted in this state.
Ｆ０作用
電動機を回転ロックさせておくことで、乗車がごの最上
階から最下階までの昇降時間による制約を無くし、ま？
Ｑ周波数と電流又は電圧を調整に好都合な値に設定でき
るようにする。By locking the rotation of the F0 operating motor, there is no restriction on the time taken for passengers to go up and down from the top floor to the bottom floor.
To enable setting of Q frequency and current or voltage to values convenient for adjustment.
Ｇ、実施例 以下、本発明の実施例を詳細に説明する。G. Example Examples of the present invention will be described in detail below.
第２図は中・低速エレベータ装置の構成図を示す。整流
器ｌに得る直流電力を電圧形トランジスタインバータ主
回路２でＰＷＭ波形の交流電力に変換して誘導電動機３
に供給される。電動機３の駆動力は減速歯車機構４を介
して巻上機５に伝達され、巻上機５にはローブ６によっ
て乗車かご７とカウンタウェイト８がつり合わされ、巻
上機５の回転によって乗車かご７の昇降駆動がなされる
。FIG. 2 shows a configuration diagram of a medium/low speed elevator system. The DC power obtained from the rectifier l is converted into AC power with a PWM waveform by the voltage source transistor inverter main circuit 2, and the induction motor 3
is supplied to The driving force of the electric motor 3 is transmitted to the hoisting machine 5 via the reduction gear mechanism 4, and the hoisting machine 5 has a lobe 6 that balances the car 7 and the counterweight 8. 7 is driven up and down.
巻上機５には電磁ブレーキ９も設けられ、乗車かご７の
着床位置での減速・停止の機械ブレーキがかけられる。The hoisting machine 5 is also provided with an electromagnetic brake 9, and a mechanical brake for decelerating and stopping the car 7 at the landing position is applied.
インバータの制御装置は、電動機３０回転数を検出する
パルスピックアップ１０と、この検出パルスから乗車か
ご７の位置を検出して該かご位置と目的階情報から定め
る速度パターン信号を発生する速度指令発生器１１と、
この速度パターン信号を速度指令Ｎとしてパルスピック
アップｌＯの回転数との突き合わせで速度制御演算を行
い、この演算からインバータ周波数及び電圧を算定した
正弦波信号を発生する制御部１２と、この制御部１２か
らの正弦波信号を指令として正弦波ＰＷＭ信号のゲート
パルスを発生するＰＷＭ信号信号部生部１３備えるＰＷ
Ｍ信号信号部生部１３流制御形にされ、正弦波信号を電
流指令としてインバータ出力電流との偏差を比例積分演
算し、この出力をキャリア信号と比較することでＰＷＭ
波形を得る。The inverter control device includes a pulse pickup 10 that detects 30 rotations of the electric motor, and a speed command generator that detects the position of the car 7 from this detection pulse and generates a speed pattern signal determined from the car position and destination floor information. 11 and
This speed pattern signal is used as a speed command N, and a speed control calculation is performed by comparing it with the rotation speed of the pulse pickup 1O, and a control section 12 generates a sine wave signal with the inverter frequency and voltage calculated from this calculation. A PWM signal generating section 13 that generates a gate pulse of a sine wave PWM signal using a sine wave signal as a command from the PW.
M signal signal generating section 13 The current control type is used, and the deviation from the inverter output current is calculated using a sine wave signal as a current command, and the PWM is performed by comparing this output with the carrier signal.
Get the waveform.
こうした制御装置において、制御部１２は、エレベータ
装置の組み立て後の試験手段として第１図に示すように
、通常制御手順に試験制御手順を付加したプログラム又
は回路構成を備える。同図において、制御部１２は制御
開始に先立って通常制御か試験（テスト）制御かを判定
しくステップＳ１）、通常制御では走行命令の有無判定
を行い（ステップＳ２）、これら両ステップの繰り返し
で走行命令を待つ。そして、走行命令が与えられると、
トルク制御の開始（ステップＳ３）と電磁ブレーキ９の
解除（ステップ４）と速度パターンに従った走行制御開
始（ステップ５）の一連の走行制御を実行する。In such a control device, the control unit 12 includes a program or a circuit configuration in which a test control procedure is added to a normal control procedure, as shown in FIG. 1, as a test means after the elevator device is assembled. In the figure, before starting the control, the control unit 12 determines whether it is normal control or test control (step S1), and in the normal control, determines whether or not there is a running command (step S2), and repeats these two steps. Wait for driving command. Then, when the command to run is given,
A series of travel control is executed, including starting torque control (step S3), releasing electromagnetic brake 9 (step 4), and starting travel control according to the speed pattern (step 5).
次に、試験制御が選択されたとき、制御部１２は通電命
令のオンを待ち（ステップＳ６）、この通電命令が与え
られたときに試験運転専用の指令電流読み込み（ステッ
プＳ７）と指令周波数読み込み（ステップＳ８）とを行
う。この電流及び周波数指令は夫々電流設定器１４と周
波数設定器１５の設定値として与えられる。この後、制
御部１２は、電磁ブレーキ９を解除することなく、電流
指令及び周波数指令に一致する正弦波信号をＰ ＷＭ倍
信号発生１３に与える電流制御を開始する（ステップＳ
９）。この制御状態は通電命令が解除されるまで継続す
る。Next, when test control is selected, the control unit 12 waits for the energization command to turn on (step S6), and when this energization command is given, reads the command current dedicated to the test operation (step S7) and reads the command frequency. (Step S8). The current and frequency commands are given as set values of a current setter 14 and a frequency setter 15, respectively. After that, the control unit 12 starts current control to give a sine wave signal matching the current command and frequency command to the PWM multiplied signal generator 13 without releasing the electromagnetic brake 9 (step S
9). This control state continues until the energization command is released.
このような試験制御によれば、電動機３は電磁ブレーキ
９で回転ロックされたまま一定周波数かつ一定電流の試
験電流がインバータ主回路２側から供給され、この試験
電流のアンバランス、直流分重畳さらには波形歪みが調
整又は故障修理での調整がなされる。この調整時には乗
車かご７の昇降による時間的制約がなく、シかも乗車か
ご７の位置の移動による電動機電流の変化がなく、さら
に試験周波数を測定器の指針振れを無くした任意の周波
数領域に設定した測定ができる。According to such test control, a test current of a constant frequency and a constant current is supplied from the inverter main circuit 2 side while the motor 3 is rotationally locked by the electromagnetic brake 9, and the test current is unbalanced, DC component is superimposed, and The waveform distortion is adjusted or the adjustment is made for troubleshooting. During this adjustment, there is no time constraint due to the raising and lowering of the car 7, there is no change in motor current due to movement of the position of the car 7, and the test frequency is set to an arbitrary frequency range that eliminates the deflection of the measuring instrument's pointer. measurements can be made.
なお、試験制御での電流指令は、電動機３を回転ロック
状態で長時間通電するも該電動機が過熱しない程度にさ
れ、かつ電流調整を行い易くなる適当なレベルにされ、
例えば定格値に近い周波数で励磁電流相当分の電流に設
定される。The current command in the test control is set to an appropriate level that will not overheat the motor 3 even if the motor 3 is energized for a long period of time in a locked rotation state, and that makes it easy to adjust the current.
For example, the current is set to a value equivalent to the excitation current at a frequency close to the rated value.
なお、実施例では電流制御形ＰＷＭ制御によるインバー
タに対する調整方法を示すが、これは電圧形インバータ
の場合には試験のために一定電圧かつ一定周波数の指令
を与えることで同等の調整が可能となる。また、整流器
ｌ側で電流制御を行うインバータでは該整流器１の電流
指令を設定・制御する調整方法にされる。In addition, in the example, an adjustment method for an inverter using current-controlled PWM control is shown, but in the case of a voltage-type inverter, equivalent adjustment can be made by giving a constant voltage and constant frequency command for testing. . Further, in an inverter that performs current control on the rectifier l side, an adjustment method is used in which the current command of the rectifier 1 is set and controlled.
Ｈ１発明の効果
以上のとおり、本発明によれば、調整時には電動機を回
転ロックした状態でインバータ周波数と電流又は電圧を
制御し、この状態でインバータ調整を行うようにしたた
め、乗車かごの昇降時間に制約されることなく、しかも
調整に好ましい周波数、電流等に設定することができ、
エレベータ装置の組み立て後の調整を正確かつ容易に行
うことができる効果がある。H1 Effects of the Invention As described above, according to the present invention, the inverter frequency and current or voltage are controlled with the rotation of the electric motor locked during adjustment, and the inverter adjustment is performed in this state. You can set the frequency, current, etc. that is preferable for adjustment without being restricted.
This has the effect that adjustment after assembly of the elevator device can be performed accurately and easily.
第１図は本発明の一実施例を示す制御フローチャート、
第２図はエレベータの装置構成図である。
２・・・インバータ主回路、３・・・誘導電動機、７・
・・乗車かご、１１・・・速度指令発生器、１２・・・
制御部、１３・・・ＰＷＭ信号発生部、１４・・・電流
設定器、１５・・・周波数設定器。
第１図
実施例の７０−チャートFIG. 1 is a control flowchart showing one embodiment of the present invention;
FIG. 2 is a diagram showing the configuration of the elevator. 2... Inverter main circuit, 3... Induction motor, 7.
... Car, 11... Speed command generator, 12...
Control unit, 13... PWM signal generation unit, 14... Current setting device, 15... Frequency setting device. Figure 1 70-Chart of Example
Claims (1)
ータの機構系を駆動するエレベータ駆動装置において、
前記インバータの制御部は通常制御から試験制御に切り
換えられたときに誘導電動機を回転ロックした状態で指
令周波数かつ指令電流又は電圧に一致するインバータの
出力制御を行い、この状態でインバータの調整を行うよ
うにしたことを特徴とするインバータの調整方法。(1) In an elevator drive device that drives an elevator mechanical system by an induction motor operated by an inverter,
When the control unit of the inverter is switched from normal control to test control, the control unit controls the output of the inverter to match the command frequency and command current or voltage with the rotation of the induction motor locked, and adjusts the inverter in this state. An inverter adjustment method characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63079308A JP2628884B2 (en) | 1988-03-31 | 1988-03-31 | How to adjust the inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63079308A JP2628884B2 (en) | 1988-03-31 | 1988-03-31 | How to adjust the inverter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01252194A true JPH01252194A (en) | 1989-10-06 |
| JP2628884B2 JP2628884B2 (en) | 1997-07-09 |
Family
ID=13686222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63079308A Expired - Lifetime JP2628884B2 (en) | 1988-03-31 | 1988-03-31 | How to adjust the inverter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2628884B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082313A (en) * | 2005-09-14 | 2007-03-29 | Toyo Electric Mfg Co Ltd | Induction machine control device |
-
1988
- 1988-03-31 JP JP63079308A patent/JP2628884B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082313A (en) * | 2005-09-14 | 2007-03-29 | Toyo Electric Mfg Co Ltd | Induction machine control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2628884B2 (en) | 1997-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100303011B1 (en) | Operation control apparatus for elevator | |
| US4982816A (en) | Speed control system for elevators | |
| JPWO2005102895A1 (en) | Elevator control device | |
| EP0477976A2 (en) | Adjusting technique for a digital elevator drive system | |
| KR0134984B1 (en) | Motor control apparatus | |
| JP3017788B2 (en) | Control device for elevator equipment without speed sensor | |
| JPH01252194A (en) | Method of adjusting inverter | |
| JPH1160103A (en) | Elevator control device | |
| JPS6181375A (en) | Controller for alternating current elevator | |
| JP2000211829A (en) | Elevator control device | |
| JPS6246474B2 (en) | ||
| JP2000095453A (en) | Control device for elevator | |
| JPH11292411A (en) | Speed control device for elevator | |
| JP3908323B2 (en) | Elevator speed control device | |
| JPH0592875A (en) | Elevator control device | |
| WO2022079885A1 (en) | Diagnosis device for passenger conveyer | |
| JP2001019290A (en) | Controller of elevator | |
| JPS60128176A (en) | Controller for elevator | |
| JPH09272663A (en) | Drive controller for elevator | |
| JPH0725500B2 (en) | Elevator speed control method | |
| JP2000128445A (en) | Controller for geared elevator | |
| JPH04217572A (en) | Elevator load detector | |
| JPH0717324B2 (en) | Start-up control device for elevator | |
| JPH11171412A (en) | Elevator control system | |
| JPH02163276A (en) | Hall arriving speed controller for elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |