JPS6125097U - AC motor inverter control circuit - Google Patents
AC motor inverter control circuitInfo
- Publication number
- JPS6125097U JPS6125097U JP10726284U JP10726284U JPS6125097U JP S6125097 U JPS6125097 U JP S6125097U JP 10726284 U JP10726284 U JP 10726284U JP 10726284 U JP10726284 U JP 10726284U JP S6125097 U JPS6125097 U JP S6125097U
- Authority
- JP
- Japan
- Prior art keywords
- natural vibration
- control circuit
- motor
- frequency
- vibration 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図は本考案の実施例を示す制御ブロック図であり、
第２図は第１図に示すリミッタの動作特性図である。
１・・・整流器、２・・・平滑コンデンサ、３・・・Ｐ
ＷＭインバータ、４・・・誘導電動機、５・・・負荷機
械、１．１・・・速度設定器、１２・・・加減速調節器
、１３・・・電圧・周波数変換器、１４・・・関数発生
器、１０・・・パルス幅変調回路、１６・・・ベース駆
動回路、２１・・・固有振動周波数設定器、２２・・・
コンバレータ、２３・・・リレー、２３Ａ・・・リレー
接点、２４・・・回避周波数発生器、２５・・・’Ｊ
ミッタ。FIG. 1 is a control block diagram showing an embodiment of the present invention,
FIG. 2 is an operational characteristic diagram of the limiter shown in FIG. 1. 1... Rectifier, 2... Smoothing capacitor, 3... P
WM inverter, 4... Induction motor, 5... Load machine, 1.1... Speed setter, 12... Acceleration/deceleration regulator, 13... Voltage/frequency converter, 14... Function generator, 10... Pulse width modulation circuit, 16... Base drive circuit, 21... Natural vibration frequency setter, 22...
Converter, 23... Relay, 23A... Relay contact, 24... Avoidance frequency generator, 25...'J
Mitta.
Claims (1)
交流電力を出力して負荷機械が結合されている交流電動
機を所望速度で運転させるインパータにおいて、前記交
流電動機とその負荷機械とて構成される機械系の１次ま
たは高次の固有振動周波数を設定する固有振動周波数設
定器と、前記速度指令信号またはこれと同等の信号の値
が前記固有振動周波数の上下に設定される所定周波数範
囲内にある二七を検出するコンパレータと、該コンパレ
ータ動作中は前記所定周波数範囲を回避した速度指令信
号またはこれと同等の信号を出力する固有振動周波数回
避手段とを備えてなることを特徴とする交流電動機用イ
ンパータの制御回路。An inverter that outputs AC power at a frequency based on a speed command signal set by a speed setting device to operate an AC motor to which a load machine is connected at a desired speed, the machine comprising the AC motor and the load machine. a natural vibration frequency setter for setting the first-order or higher-order natural vibration frequency of the system; and a value of the speed command signal or a signal equivalent thereto is within a predetermined frequency range set above and below the natural vibration frequency. an AC motor, comprising: a comparator that detects a frequency of 27; and a natural vibration frequency avoidance means that outputs a speed command signal that avoids the predetermined frequency range or a signal equivalent thereto while the comparator is in operation. Imperter control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10726284U JPS6125097U (en) | 1984-07-16 | 1984-07-16 | AC motor inverter control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10726284U JPS6125097U (en) | 1984-07-16 | 1984-07-16 | AC motor inverter control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6125097U true JPS6125097U (en) | 1986-02-14 |
Family
ID=30666515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10726284U Pending JPS6125097U (en) | 1984-07-16 | 1984-07-16 | AC motor inverter control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6125097U (en) |
-
1984
- 1984-07-16 JP JP10726284U patent/JPS6125097U/en active Pending
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