JPH0472898U - - Google Patents
Info
- Publication number
- JPH0472898U JPH0472898U JP11446890U JP11446890U JPH0472898U JP H0472898 U JPH0472898 U JP H0472898U JP 11446890 U JP11446890 U JP 11446890U JP 11446890 U JP11446890 U JP 11446890U JP H0472898 U JPH0472898 U JP H0472898U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- angular acceleration
- frequency
- rotation
- speed sensor
- 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
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案の実施例の電気的構成を示すブ
ロツク図、第２図はこの考案の動作を示すフロー
チヤートである。
１……商用電源、２……交直変換器、３……平
滑コンデンサ、４……出力段、５……誘導モータ
、６……制動抵抗器、７……回転数センサ、８…
…インバータ制御回路、９……回転数検出回路、
１０……クロツク回路、１１……第１の記憶部、
１２……角加速度演算部、１３……第２の記憶部
、１４……指令部。
FIG. 1 is a block diagram showing the electrical configuration of an embodiment of the present invention, and FIG. 2 is a flowchart showing the operation of this invention. 1... Commercial power supply, 2... AC/DC converter, 3... Smoothing capacitor, 4... Output stage, 5... Induction motor, 6... Braking resistor, 7... Rotation speed sensor, 8...
...Inverter control circuit, 9...Rotation speed detection circuit,
10... Clock circuit, 11... First storage section,
12...Angular acceleration calculation unit, 13...Second storage unit, 14...Command unit.
Claims (1)
系を駆動せしめる誘導モータの回転数を検出する
回転数センサと、 上記回転数センサからの回転数を記憶する第１
の記憶部と、 上記回転数センサからの現在の回転数及び上記
第１の記憶部からの過去の回転数に基づいて角加
速度を演算する角加速度演算部と、 上記角加速度ごとに対応する回転系のイナーシ
ヤ、及びこれらのイナーシヤに対応しかつ誘導モ
ータにおける現在の回転周波数ｆｈよりある周波
数△ｆだけ低い回転周波数ｆｓで回生制動を行う
にあたり最適な周波数△ｆを記憶するとともに、
上記角加速度演算部からの角加速度に対応する記
憶されたイナーシヤ及び最適な周波数△ｆを読み
出し可能な第２の記憶部と、 上記第２の記憶部から読み出された最適な周波
数△ｆを回生制動の開始に備えてＶＶＶＦ型イン
バータにセツトする指令部と、 を具備することを特徴とするインバータ制御装置
。[Scope of Claim for Utility Model Registration] A rotation speed sensor that detects the rotation speed of an induction motor that is driven by a VVVF type inverter and drives a rotation system, and a first sensor that stores the rotation speed from the rotation speed sensor.
a storage unit; an angular acceleration calculation unit that calculates angular acceleration based on the current rotation speed from the rotation speed sensor and the past rotation speed from the first storage unit; and a rotation corresponding to each of the angular accelerations. In addition to storing the inertia of the system and the optimum frequency Δf corresponding to these inertias for performing regenerative braking at a rotational frequency fs that is lower by a certain frequency Δf than the current rotational frequency fh of the induction motor,
a second storage section capable of reading out the stored inertia and optimal frequency Δf corresponding to the angular acceleration from the angular acceleration calculation section; An inverter control device comprising: a command unit that is set in a VVVF type inverter in preparation for the start of regenerative braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11446890U JPH0472898U (en) | 1990-10-31 | 1990-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11446890U JPH0472898U (en) | 1990-10-31 | 1990-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0472898U true JPH0472898U (en) | 1992-06-26 |
Family
ID=31862149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11446890U Pending JPH0472898U (en) | 1990-10-31 | 1990-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0472898U (en) |
-
1990
- 1990-10-31 JP JP11446890U patent/JPH0472898U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62172581U (en) | ||
| JPH0472898U (en) | ||
| JPH03120693U (en) | ||
| JPH042989U (en) | ||
| JPH0340900U (en) | ||
| JPS63187594U (en) | ||
| JPS602399U (en) | Variable frequency control device for AC motor | |
| JPS6226192U (en) | ||
| JPH02136483U (en) | ||
| JPH027796U (en) | ||
| JPS63105500U (en) | ||
| JPS6262308U (en) | ||
| JPS63182697U (en) | ||
| JPS59141496U (en) | Electric motor deceleration control device | |
| JPS6149599U (en) | ||
| JPH03111193U (en) | ||
| JPH0339399U (en) | ||
| JPH01146797U (en) | ||
| JPS6172090U (en) | ||
| JPS62154798U (en) | ||
| JPS634194U (en) | ||
| JPH03111197U (en) | ||
| JPH0360896U (en) | ||
| JPH0182694U (en) | ||
| JPS63182696U (en) |