JPS6016182A - Restarting method of motor - Google Patents

Restarting method of motor

Info

Publication number
JPS6016182A
JPS6016182A JP58123743A JP12374383A JPS6016182A JP S6016182 A JPS6016182 A JP S6016182A JP 58123743 A JP58123743 A JP 58123743A JP 12374383 A JP12374383 A JP 12374383A JP S6016182 A JPS6016182 A JP S6016182A
Authority
JP
Japan
Prior art keywords
motor
inverter
electric motor
frequency
voltage
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
JP58123743A
Other languages
Japanese (ja)
Inventor
Hiroaki Uchiumi
内海 廣明
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP58123743A priority Critical patent/JPS6016182A/en
Publication of JPS6016182A publication Critical patent/JPS6016182A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/26Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To smoothly restart from the course of deceleration by controlling the frequency, voltage and phase of an inverter when a motor is stopped, thereby controlling the deceleration of the motor. CONSTITUTION:If a motor stop command is outputted when a motor 3 is operated by the set frequency by an inverter 2, a microcomputer 5 controls the frequency, voltage and phase of the inverter 2 to control the deceleration of the motor 3. When the operation command of restart is inputted from an operation panel 6 to a microcomputer 5 in the course of decelerating the motor 3, the inverter 2 is switched to acceleration while maintaining the frequency, voltage and phase control. In this manner, the restart can be performed in a short time smoothly.

Description

【発明の詳細な説明】 この発明は電動機の再始動運転方法に関する。[Detailed description of the invention] The present invention relates to a method for restarting an electric motor.

第1図は電動機の運転装置を説明する構成図で、コンバ
ータ1から得る直流電力はトランジスタ式電圧型インバ
ータ2によシ可変周波数、可変電圧の交流電力に変換さ
れて永久磁石式電動機(又は “誘導電動機)3に供給
される。4は平滑コンデンサである。前記インバータ2
のゲート制御信号はマイクロコンピュータ5のインバー
タ用インター7 :L −スjgから与えられる。前記
マイクロコンピュータ5にはインバータ制御、例えばP
WM制御用のソフトウェアプログラムが格納されたRO
M52、後述する操作パネルによって設定される各種設
定値等のパラメータのデータ格納及び演算用のデータ格
納かなされるR□ M 5 s % これら各データを
使用したプログラムに従ってインバータ2の出力信号を
得るμm0PU5a、操作パネル用インターフェース5
B及びパスライン56から構成される。
FIG. 1 is a block diagram illustrating an electric motor operating device. DC power obtained from a converter 1 is converted into variable frequency, variable voltage AC power by a transistor voltage inverter 2 to drive a permanent magnet electric motor (or 4 is a smoothing capacitor.The inverter 2
The gate control signal is given from the inverter interface 7: L-sjg of the microcomputer 5. The microcomputer 5 has inverter control, for example P
RO that stores the software program for WM control
M52, R□ M 5 s % μm0PU5a, which stores parameter data such as various setting values set by the operation panel described later and data for calculations, and obtains the output signal of the inverter 2 according to a program using each of these data. , operation panel interface 5
B and a pass line 56.

6は操作パネルで、この操作パネル6はインバータ2の
動作周波数(電動機の回転数制御)や電動機3の加減速
指令の設定を行う設定器を有し、この設定器からの信号
d操作パネル用インーフェース55を通してバクライン
56に導びかれる。
6 is an operation panel, and this operation panel 6 has a setting device for setting the operating frequency of the inverter 2 (rotational speed control of the motor) and acceleration/deceleration commands for the electric motor 3, and the signal d from this setting device is for the operation panel. It is led to a back line 56 through an interface 55.

上記第1図のように構成された電動機の運転装置におけ
る従来の電動機運転方法を第2図に基づいて述べる。第
2図は従来の運転パターンのタイムチャートで、この図
では縦軸に電動機回転数nを、横軸に時間tをとっであ
る。この第2図において、時間t=0から1 = 1.
までは電動機が設定周波数(所定の回転数n+ ’)に
より運転されている状態を示すパターンである。このよ
うに運転されているとき、前記時間1 = 1.のとき
操作パネル6から停止指令がインバータ2のゲートに入
力されると、インバータ2は動作を停止する。これにょ
シミ動機3への電力供給が断れる。しかし、電動機3は
慣性によシさらに回転を続行し、時間の経過とともに回
転数が次第に減速されてくる。このときの減速パターン
を第2図の曲線Zで示す。図中時間t!は電動機3のi
転が停止する時点である。
A conventional motor operating method in the motor operating device configured as shown in FIG. 1 will be described with reference to FIG. FIG. 2 is a time chart of a conventional operation pattern, in which the vertical axis represents the motor rotation speed n and the horizontal axis represents time t. In this FIG. 2, from time t=0 to 1=1.
The patterns up to this point indicate a state in which the electric motor is operated at a set frequency (predetermined rotational speed n+'). When operating in this way, the time 1 = 1. When a stop command is input from the operation panel 6 to the gate of the inverter 2 at this time, the inverter 2 stops operating. As a result, power supply to Simi Motion 3 is cut off. However, the electric motor 3 continues to rotate due to inertia, and the rotation speed gradually decreases as time passes. The deceleration pattern at this time is shown by curve Z in FIG. Time t in the diagram! is i of electric motor 3
This is the point at which the rotation stops.

特にqD冨の大きい電動機3の場合には停止指令が入力
されてから停止するまで数10分間も回転し続けること
がある。このようにqplの大きい電動機が例えば永久
磁石式電動機PMの場合には停止するまで誘起電圧を発
生する。このようなときに前記時間t1から1.の間に
再始動の運転指令がインバータ2に入力されると、周波
数、電圧および位相が電動機PMとインバータ2との間
で不一致とな郵、出力過電流や直流過電圧を発生する。
In particular, in the case of the electric motor 3 having a large qD value, it may continue to rotate for several tens of minutes from when a stop command is input until it stops. In this way, when the motor with a large qpl is, for example, a permanent magnet motor PM, an induced voltage is generated until the motor stops. In such a case, from the time t1 to 1. If a restart operation command is input to the inverter 2 during this period, the frequency, voltage, and phase will not match between the motor PM and the inverter 2, resulting in output overcurrent and DC overvoltage.

これらによりインバータ2は故障し、動作を停止してし
まう。また、qD3の大きい電動機が、例えば誘導電動
機工Mの場合にも、インバータ2に再始動の運転指令が
入力され九時にパワーパック等によシ直流過電圧が発生
するため、インバータ2が故障してしまう。
Due to these, the inverter 2 breaks down and stops operating. Furthermore, even if the motor with a large qD3 is, for example, an induction motor M, a restart command is input to the inverter 2 and a DC overvoltage is generated by the power pack etc. at 9 o'clock, so the inverter 2 may fail. Put it away.

なお、第2図中、時間t2からt3間は電動機3の回転
が停止したことを確認するための時間である。このよう
に従来は回転が完全に停止した後でなければ再始動の運
転指令は与えなかった。時間t3は運転指令入力時点で
、この指令によυ電動機3は図中の加速指令曲縁Yによ
って時間t4まで加速される。そして回転数が設定値n
1に一致すると同期速度での運転状態に入る。
In addition, in FIG. 2, the period from time t2 to t3 is a time for confirming that the rotation of the electric motor 3 has stopped. In this way, conventionally, a restart command was not given until rotation had completely stopped. At time t3, the driving command is input, and according to this command, the υ motor 3 is accelerated until time t4 according to the acceleration command curved edge Y in the figure. And the rotation speed is the set value n
If it matches 1, it enters the operating state at synchronous speed.

上述のように従来の電動機運転方法では、インバータの
動作を停止して電動機への電力供給を断った後、電動機
の回転が完全に停止するまで数10分以上の晴間再始動
ができないため、電動機の使用効率が悪い。もし、電動
機が慣性により回転している時に再始動指令を与えても
、インバータの動作が停止してしまうために電動機の再
始動が不可能であった。
As mentioned above, in the conventional electric motor operation method, after stopping the inverter and cutting off the power supply to the electric motor, it is not possible to restart the electric motor for more than several tens of minutes until the rotation of the electric motor has completely stopped. is used inefficiently. Even if a restart command was given while the electric motor was rotating due to inertia, the operation of the inverter would stop, making it impossible to restart the electric motor.

この発明は上記の事情に鑑みて彦されたもので、可変速
インバータ装置に電動機停止指令をマイクロコンピュー
タから与えてインバータ装置の周波数、′l!圧および
位相を制御させてから電動機を減速制御させ、この減速
制御途中に再始動を行うようにしたので、再始動の運転
が円滑にできる電動機の再始動運転方法を提供すること
を目的とする。
This invention was developed in view of the above-mentioned circumstances, and allows a microcomputer to give a motor stop command to a variable speed inverter to control the frequency of the inverter, 'l! The purpose of the present invention is to provide a method for restarting an electric motor that enables smooth restart operation by controlling the pressure and phase, then decelerating the electric motor, and restarting the motor during the deceleration control. .

以下図面を参照してこの発明の一実施例を説明する。An embodiment of the present invention will be described below with reference to the drawings.

第3図はこの発明による電動機の停止、再始動の運転パ
ターンのタイムチャートで、時間11までは第1図に示
すインバータ2による設定周波数で電動機3は規定の運
転が行われているものとする。
FIG. 3 is a time chart of the operation pattern for stopping and restarting the electric motor according to the present invention, and it is assumed that until time 11, the electric motor 3 is operated at the specified frequency by the inverter 2 shown in FIG. .

このように運転されているときに、第1図に示す操作パ
ネル6から電動機停止指令が送出される。
While operating in this manner, a motor stop command is sent from the operation panel 6 shown in FIG.

この指令が入力されたマイクロコンピュータ5はインバ
ータ2ヘゲートしゃ断出力を送出しないで、周波数、電
圧および位相制御を行う出力を送出して、電動機3を時
間1.よシ減速制御させる。第3図中、Zが減速制御曲
線である。減速制御曲線Zに従って、電動機3を減速さ
せている途中に、時間t2に再始動の運転指令が操作パ
ネル6からマイクロコンピュータ5に入力されると、イ
ンバータ2は周波数、電圧および位相制御を保持したま
ま加速制御に切替えられて再始動される。Yは加速制御
曲線である。再始動後、前記加速制御曲線Yに従って、
時間t3まで電動機3は加速される。電動機3の回転数
が時間j++になると設定値と一致し以後、同期速度で
の運転状態に入る。
The microcomputer 5 to which this command has been input does not send a gate cutoff output to the inverter 2, but sends an output for frequency, voltage, and phase control to control the motor 3 for a time of 1. Control the deceleration. In FIG. 3, Z is the deceleration control curve. While the electric motor 3 is being decelerated according to the deceleration control curve Z, when a restart operation command is input from the operation panel 6 to the microcomputer 5 at time t2, the inverter 2 maintains frequency, voltage, and phase control. The engine is then switched to acceleration control and restarted. Y is an acceleration control curve. After restarting, according to the acceleration control curve Y,
The electric motor 3 is accelerated until time t3. When the rotational speed of the electric motor 3 reaches time j++, it matches the set value and thereafter enters the operating state at the synchronous speed.

上記のようにして、減速制御中でもインバータ2の周波
数、電圧および位相を制御しているので、減速制御途中
から加速制御に切替えてもGD冨の大きさに関係なく電
動機3はスムーズに再始動が可能で、過電流や過電圧等
が生じないため、インバータ2の動作停止を起さない。
As described above, the frequency, voltage, and phase of the inverter 2 are controlled even during deceleration control, so even if you switch to acceleration control from the middle of deceleration control, the motor 3 will restart smoothly regardless of the magnitude of GD. Since no overcurrent or overvoltage occurs, the operation of the inverter 2 does not stop.

また、この方法では再始動までの待時間もないので、電
動機の使用効率が極めて良い。
In addition, this method requires no waiting time before restarting, so the motor is used very efficiently.

次に第3図に示す運転パターンのタイムチャートにおい
て、減速制御油lsZを図示点線のように時間軸まで延
長させた交点(時間ta)はこの発明による電動機の停
止時点で、いま電動機3がこの停止時点に近い低回転数
か停止したとき、インバータ2のゲートしゃ断を行った
後、再始動の運転指令が前述と同様に操作パネル6から
送出されたとする。このとき、電Mtb機3は低回転で
あるため、電動機3とインバータ2との間の周波数、電
圧および位相が不一致でもパワーバックや急激な加速電
流は発生しないで、通常の運転指令で再始動ができる。
Next, in the time chart of the operation pattern shown in FIG. 3, the intersection point (time ta) where the deceleration control oil lsZ is extended to the time axis as shown by the dotted line is the point at which the electric motor according to the present invention is stopped, and the electric motor 3 is now in this position. Assume that when the engine has stopped at a low rotational speed close to the time of stopping, the inverter 2 is gated off, and then an operation command for restarting is sent from the operation panel 6 in the same manner as described above. At this time, since the electric Mtb machine 3 rotates at a low rotation speed, even if the frequency, voltage, and phase between the electric motor 3 and the inverter 2 do not match, power back or sudden acceleration current does not occur, and the machine restarts with the normal operation command. I can do it.

これはインバータの各音は始動電流によシ決定されるた
め、インバータの動作停止は発生 □しない。
This is because each sound of the inverter is determined by the starting current, so the inverter does not stop operating.

以上述べたように、この発明によれば可変速インバータ
装置に電動機停止指令をマイクロコンビエータから与え
たときインバータ装置の周波数。
As described above, according to the present invention, when a motor stop command is given to the variable speed inverter device from the micro combiator, the frequency of the inverter device.

電圧および位相を制御させて電動機を減速制御させ、こ
の制御の途中に、再び加速制御を行なわせるようにした
ので、GD2の大きい電動機でも再始動は極めて短時間
にでき、しかもインバータの故障等による動作停止の発
生も起ら力い。また、電動機が低回転か停止されたとき
にインバータのゲートシゃ断を行った後、再始動の指令
があったときにも円滑な再始動ができるとともにインバ
ータの故障等による動作停止の発生も起らない等の利点
がある。
Since the voltage and phase are controlled to decelerate the motor, and during this control, acceleration control is performed again, even a motor with a large GD2 can be restarted in an extremely short time, and moreover, it is possible to restart the motor in an extremely short time due to inverter failure, etc. It is also unlikely that the operation will stop. In addition, after the inverter gate is cut off when the motor rotates at low speed or has stopped, smooth restarting is possible when a restart command is received, and it also prevents operation from stopping due to inverter failure, etc. There are advantages such as not having to

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

第1図はマイクロコンピュータを使用した電動機の運転
装置を説明する構成図、第2図は従来の電動機の再始動
運転パターンを示すタイムチャート、第3図はこの発明
の一実施例を示す電動機の再始動運転パターンのタイム
チャートである。 20・インバータ130・電動機、5++−・マイクロ
コンピュータ、6・・−操作ハネル。
Fig. 1 is a block diagram illustrating a motor operating device using a microcomputer, Fig. 2 is a time chart showing a restart operation pattern of a conventional motor, and Fig. 3 is a diagram of a motor showing an embodiment of the present invention. It is a time chart of a restart operation pattern. 20.Inverter 130.Electric motor, 5++-.Microcomputer, 6.--Operation panel.

Claims (2)

【特許請求の範囲】[Claims] (1)可変速インバータ装置の出力によシ制御される電
動機の運転方法において、前記可変速インバータ装置に
電動機停止指令をマイクロコンピュータから与え、その
インバータ装置の周波数、電圧および位相を制御して電
動機を減速制御させ、この制御途中に前記マイクロコン
ピュータから可変速インバータ装置に電動機加速制御指
令を与えたことを特徴とする電動機の再始動運転方法。
(1) In a method of operating an electric motor controlled by the output of a variable speed inverter device, a motor stop command is given to the variable speed inverter device from a microcomputer, and the frequency, voltage and phase of the inverter device are controlled to drive the electric motor. A method for restarting an electric motor, characterized in that the microcomputer gives a motor acceleration control command to a variable speed inverter device during deceleration control.
(2)可変速インバータ装置の出力によシ制御される電
動機の運転方法において、前記可変速インバータ装置に
電動機停止指令をマイクロコンピュータから与え、その
インバータ装置の周波数、電圧および位相を制御して電
動機を減速制御させ、この制御によって、電動機が停止
または低回転運転になつ九ときに、前記インバータ装置
のゲートしゃ断を行い、その後電動機に再始動指令を与
えて電動機を加速制御させるようにしたことを特徴とす
る電動機の再始動運転方法。
(2) In a method of operating an electric motor controlled by the output of a variable speed inverter, a motor stop command is given to the variable speed inverter from a microcomputer, and the frequency, voltage and phase of the inverter are controlled to drive the electric motor. By this control, when the electric motor stops or operates at low rotation speed, the gate of the inverter device is cut off, and then a restart command is given to the electric motor to accelerate the electric motor. Characteristic method of restarting an electric motor.
JP58123743A 1983-07-07 1983-07-07 Restarting method of motor Pending JPS6016182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58123743A JPS6016182A (en) 1983-07-07 1983-07-07 Restarting method of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58123743A JPS6016182A (en) 1983-07-07 1983-07-07 Restarting method of motor

Publications (1)

Publication Number Publication Date
JPS6016182A true JPS6016182A (en) 1985-01-26

Family

ID=14868224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58123743A Pending JPS6016182A (en) 1983-07-07 1983-07-07 Restarting method of motor

Country Status (1)

Country Link
JP (1) JPS6016182A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250894A (en) * 1986-04-22 1987-10-31 Mitsubishi Electric Corp Driving device for induction motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5666196A (en) * 1979-10-29 1981-06-04 Mitsubishi Electric Corp Motor operation controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5666196A (en) * 1979-10-29 1981-06-04 Mitsubishi Electric Corp Motor operation controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250894A (en) * 1986-04-22 1987-10-31 Mitsubishi Electric Corp Driving device for induction motor

Similar Documents

Publication Publication Date Title
US3963930A (en) System for controlling operation of the rotating anode of an x-ray tube
JPS6016182A (en) Restarting method of motor
US4719398A (en) Coasting AC motor restart system and method
JPS5945515A (en) Method for controlling position of motor
JPS59203883A (en) Operation of variable speed pump water wheel dynamotor
JP2002233181A (en) Motor control device
JPS634440B2 (en)
JP4427952B2 (en) Electric motor control method
JP2527787B2 (en) AC motor restart device
JPS646636B2 (en)
JPH10313586A (en) Brushless, sensorless dc motor and its driving and controlling device
JP3686995B2 (en) Motor winding switching method and motor drive device
JP2003106607A (en) Control device for air conditioner
JPS6198187A (en) Control circuit for inverter
JP2761362B2 (en) Operation control method of induction motor
JPS6389096A (en) Drive control of step motor
JPH04355694A (en) Control method for motor by winding tap switching
WO2020135237A1 (en) Method for quantitatively analyzing starting capability of stepper motor
JPH08251967A (en) Inverter
JPH0866078A (en) Method and circuit for controlling voltage-type inverter
JP2000050688A (en) Variable speed equipment
JPS60205719A (en) Control system for stop of needle in home position of machine
JPH10290521A (en) Motor runaway detection method and speed controller
JPH0441756Y2 (en)
JPH06165547A (en) Braking method for induction motor