JPS589091U - Pulse width modulation type inverter control device - Google Patents
Pulse width modulation type inverter control deviceInfo
- Publication number
- JPS589091U JPS589091U JP10024681U JP10024681U JPS589091U JP S589091 U JPS589091 U JP S589091U JP 10024681 U JP10024681 U JP 10024681U JP 10024681 U JP10024681 U JP 10024681U JP S589091 U JPS589091 U JP S589091U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- width modulation
- modulation type
- type inverter
- 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
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は９パルスモードにおける変調動作例を示す図、
第２図はチョッピング周波数の変化を示す図、第３図は
本考案の理解を容易にするため示した変調部の制御系統
図、第４図は本考案の一実施例を示す制御系統図、第５
図は加減速調整部分の一例を示す説明図である。
４．４′・・・・・・三角波発生器、７・・・・・・変
調器、９・・・・・・加減速ｍ整器、１０・・・・・・
ヒステリシスコンパレータ、ｆＩＮｖ−・・・・・イン
バータ周波数、ｆｃＨ・・・・・・チョッピング周波数
。
２０４
２０５−FIG. 1 is a diagram showing an example of modulation operation in 9-pulse mode,
FIG. 2 is a diagram showing changes in the chopping frequency, FIG. 3 is a control system diagram of the modulation section shown to facilitate understanding of the present invention, and FIG. 4 is a control system diagram showing an embodiment of the present invention. Fifth
The figure is an explanatory diagram showing an example of an acceleration/deceleration adjustment section. 4.4'... Triangular wave generator, 7... Modulator, 9... Acceleration/deceleration m adjuster, 10...
Hysteresis comparator, fINv-...Inverter frequency, fcH...Chopping frequency. 204 205-
Claims (1)
用いて誘導電動機の可変速度駆動を行うパルス幅変調形
インバータ装置において、出力周波数がインバータ周波
数の３の整数倍になるよう選定せしめられる第１の三角
液状搬送波信号を発生する回路部分と、所定レベルのチ
ョッピング周波数をもつ一定の信号周波数を有する第２
の三角波状搬送波信号を発生する回路部分と、速度信号
入力から加減速時状態を判定する回路部分とを備え、前
記第１の三角波状搬送波信号と第２−の三角波状搬送波
信号を比較するとともに、該第２の三角波状搬送波信号
を前記加減速時状態の際に発生するようにしたことを特
徴とするパルス幅変調形インバータ制御装置。In a pulse width modulation type inverter device that drives an induction motor at variable speed using a power conversion device that generates an output of variable voltage and variable frequency, the first pulse width modulation type inverter device is configured such that the output frequency is selected to be an integral multiple of 3 of the inverter frequency. a second circuit portion having a constant signal frequency with a predetermined level of chopping frequency;
a circuit section that generates a triangular carrier wave signal, and a circuit section that determines an acceleration/deceleration state from a speed signal input, and compares the first triangular carrier signal and the second triangular carrier signal; . A pulse width modulation type inverter control device, characterized in that the second triangular carrier wave signal is generated during the acceleration/deceleration state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024681U JPS589091U (en) | 1981-07-07 | 1981-07-07 | Pulse width modulation type inverter control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024681U JPS589091U (en) | 1981-07-07 | 1981-07-07 | Pulse width modulation type inverter control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS589091U true JPS589091U (en) | 1983-01-20 |
Family
ID=29894945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10024681U Pending JPS589091U (en) | 1981-07-07 | 1981-07-07 | Pulse width modulation type inverter control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS589091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61192193U (en) * | 1985-05-23 | 1986-11-29 | ||
| JPS6224291U (en) * | 1985-07-24 | 1987-02-14 |
-
1981
- 1981-07-07 JP JP10024681U patent/JPS589091U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61192193U (en) * | 1985-05-23 | 1986-11-29 | ||
| JPH0518632Y2 (en) * | 1985-05-23 | 1993-05-18 | ||
| JPS6224291U (en) * | 1985-07-24 | 1987-02-14 |
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