JPS61498U - Induction motor control device - Google Patents
Induction motor control deviceInfo
- Publication number
- JPS61498U JPS61498U JP8300185U JP8300185U JPS61498U JP S61498 U JPS61498 U JP S61498U JP 8300185 U JP8300185 U JP 8300185U JP 8300185 U JP8300185 U JP 8300185U JP S61498 U JPS61498 U JP S61498U
- Authority
- JP
- Japan
- Prior art keywords
- current
- circuit
- induction motor
- control device
- output frequency
- 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
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の誘導電動機の制御装置を示す構成図、第
２図ａは従来装置の加速時の動作波形図、第２図ｂは従
来装置の回転数と！・ルクの関係図、第３図は本考案の
誘導電動機の制御装置の一実施例を示す構成図、第４図
ａは第３図の装置による加速時の動作波形図、第４図ｂ
は、第３図の装置の回転数とトルクの関係図である。
図中、１・・・第１の変換装置、２・・・リアクトル、
３・・・コンデンサ、４・・・第２の変換装置、５・・
・誘導電動機、１３・・・電流検出器、１６・・・周波
数指令回路、１７・・・電流指令回路、１３・・・加速
度制御回路、１９・・・積分器、１７・・・電圧周波数
変換器、８・・・リングカウンタ、９・・・ゲート回路
である。
なお、図中同一符号は同一又は相当部分を示す。Fig. 1 is a configuration diagram showing a conventional induction motor control device, Fig. 2a is an operating waveform diagram during acceleration of the conventional device, and Fig. 2b is the rotation speed of the conventional device. Figure 3 is a configuration diagram showing an embodiment of the induction motor control device of the present invention, Figure 4a is an operating waveform diagram during acceleration by the device in Figure 3, Figure 4b is
3 is a diagram showing the relationship between rotation speed and torque of the device shown in FIG. 3. FIG. In the figure, 1... first conversion device, 2... reactor,
3... Capacitor, 4... Second conversion device, 5...
・Induction motor, 13... Current detector, 16... Frequency command circuit, 17... Current command circuit, 13... Acceleration control circuit, 19... Integrator, 17... Voltage frequency conversion 8...Ring counter, 9...Gate circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
接続され、リアクトルとコンデンサよりなる中間直流回
路、および前記中間直流回路に接続され、直流を交流に
変換する第２の変換装置によって構成される誘導電動機
の制御装置において、前記第２の変換装置の出力周波数
の目標値を与える周波数指令回路と、前記出力周波数と
出力周波数の目標値との差に基づいて電流基準を発生し
、その差が所定値より大きくなると電流基準として所定
の最大値を発生する電流指令回路と、前記中間直流回路
の直流電流を検出する電流検出器と、前記電流基準と直
流電流の差をとり、その差に基いて加速度信号を演算す
る加速度制御回路と、前記加速度信号を積分する積分器
とを具備し、前記積分器の出力電圧によって前記第２の
変換装置の出力周波数を決定するようにした誘導電動機
の制御装置。Consisting of a first converter that converts alternating current to direct current, an intermediate direct current circuit connected to this converter and consisting of a reactor and a capacitor, and a second converter connected to the intermediate direct current circuit and converts direct current to alternating current. A control device for an induction motor includes a frequency command circuit that provides a target value of the output frequency of the second conversion device, and a current reference circuit that generates a current reference based on the difference between the output frequency and the target value of the output frequency; a current command circuit that generates a predetermined maximum value as a current reference when the difference becomes larger than a predetermined value; a current detector that detects the DC current of the intermediate DC circuit; An induction motor comprising: an acceleration control circuit that calculates an acceleration signal based on the acceleration signal; and an integrator that integrates the acceleration signal, the output frequency of the second conversion device being determined by the output voltage of the integrator. control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8300185U JPS61498U (en) | 1985-05-30 | 1985-05-30 | Induction motor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8300185U JPS61498U (en) | 1985-05-30 | 1985-05-30 | Induction motor control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61498U true JPS61498U (en) | 1986-01-06 |
Family
ID=30631234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8300185U Pending JPS61498U (en) | 1985-05-30 | 1985-05-30 | Induction motor control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61498U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250519A (en) * | 1975-10-21 | 1977-04-22 | Toshiba Corp | Frequency convertor |
| JPS5251521A (en) * | 1975-10-23 | 1977-04-25 | Meidensha Electric Mfg Co Ltd | Induction motor driving controlling circuit |
-
1985
- 1985-05-30 JP JP8300185U patent/JPS61498U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250519A (en) * | 1975-10-21 | 1977-04-22 | Toshiba Corp | Frequency convertor |
| JPS5251521A (en) * | 1975-10-23 | 1977-04-25 | Meidensha Electric Mfg Co Ltd | Induction motor driving controlling circuit |
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