JPH0318700U - - Google Patents
Info
- Publication number
- JPH0318700U JPH0318700U JP7803989U JP7803989U JPH0318700U JP H0318700 U JPH0318700 U JP H0318700U JP 7803989 U JP7803989 U JP 7803989U JP 7803989 U JP7803989 U JP 7803989U JP H0318700 U JPH0318700 U JP H0318700U
- Authority
- JP
- Japan
- Prior art keywords
- output
- induction motor
- circuit
- current
- inverter circuit
- 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
- 230000006698 induction Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims 3
- 230000001172 regenerating effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図は本考案になる誘導電動機の制御回路の
一実施例を示す構成図、第２図は回生時の回転数
の変化に対して制御電圧をどのように変化させる
かを示す説明図、第３図は第１図において○ａ部
と○ｂ部の電圧の関係を示した図、第４図は本考
案になる制御方式の一実施例を示すフローチヤー
トである。第５図は従来の制御回路の構成図であ
る。
図において、１……電源、２……カ行用サイリ
スタ整流回路、３……回生用サイリスタ整流回路
、４……インバータ回路、５……誘導電動機、６
……電流検出器、７……速度検出器、８……抵抗
、９……光変換素子、１０……抵抗、１１……Ａ
／Ｄ変換器、１２……インバータ駆動回路、１３
……周波数演算器、１４……出力インターフエー
ス、１５……入力インターフエース、１６……Ｃ
ＰＵ、１７……メモリである。
FIG. 1 is a configuration diagram showing an embodiment of the control circuit for an induction motor according to the present invention, and FIG. 2 is an explanatory diagram showing how the control voltage is changed in response to changes in the rotation speed during regeneration. FIG. 3 is a diagram showing the relationship between the voltages at portions ○a and ○b in FIG. 1, and FIG. 4 is a flowchart showing an embodiment of the control method according to the present invention. FIG. 5 is a configuration diagram of a conventional control circuit. In the figure, 1... power supply, 2... thyristor rectifier circuit for row 3, 3... thyristor rectifier circuit for regeneration, 4... inverter circuit, 5... induction motor, 6
... Current detector, 7 ... Speed detector, 8 ... Resistor, 9 ... Photoconversion element, 10 ... Resistor, 11 ... A
/D converter, 12...Inverter drive circuit, 13
...Frequency calculator, 14...Output interface, 15...Input interface, 16...C
PU, 17... Memory.
Claims (1)
を検出する電流検出器と交流より直流を得る交換
器と該直流より任意の周波数の交流を得て該誘導
電動機を駆動するインバータ回路と、該速度検出
器の出力から該インバータ回路の出力周波数を演
算する周波数演算器と、該周波数演算器の出力に
従つてインバータ回路を駆動するインバータ駆動
回路と、該誘導電動機の回生制御時の発電電力を
交流側へ回生するための回生用サイリスタ整流回
路とを具備する誘導電動機の制御回路において、
該インバータ回路に光変換素子を接続し、該光変
換素子の出力部にＡ／Ｄ変換素子を有し、更に減
速時に該Ａ／Ｄ変換器からの出力を制御するため
の制御値を保持したメモリを有することを特徴と
する誘導電動機の制御回路。 A speed detector that detects the speed, a current detector that detects the current of the induction motor, an exchanger that obtains direct current from the alternating current, an inverter circuit that obtains alternating current of an arbitrary frequency from the direct current and drives the induction motor, and the speed. a frequency calculator that calculates the output frequency of the inverter circuit from the output of the detector; an inverter drive circuit that drives the inverter circuit according to the output of the frequency calculator; In a control circuit for an induction motor equipped with a regenerative thyristor rectifier circuit for regenerating to the side,
A light conversion element was connected to the inverter circuit, an A/D conversion element was provided at the output section of the light conversion element, and a control value was held for controlling the output from the A/D converter during deceleration. A control circuit for an induction motor, characterized by having a memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7803989U JPH0318700U (en) | 1989-06-30 | 1989-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7803989U JPH0318700U (en) | 1989-06-30 | 1989-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0318700U true JPH0318700U (en) | 1991-02-25 |
Family
ID=31620966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7803989U Pending JPH0318700U (en) | 1989-06-30 | 1989-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318700U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043087A (en) * | 1983-08-17 | 1985-03-07 | Mitsubishi Electric Corp | Inverter device |
| JPS63224696A (en) * | 1987-03-14 | 1988-09-19 | Matsushita Electric Works Ltd | Controller for motor |
-
1989
- 1989-06-30 JP JP7803989U patent/JPH0318700U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043087A (en) * | 1983-08-17 | 1985-03-07 | Mitsubishi Electric Corp | Inverter device |
| JPS63224696A (en) * | 1987-03-14 | 1988-09-19 | Matsushita Electric Works Ltd | Controller for motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0318700U (en) | ||
| JPS58116095A (en) | Inverter device | |
| JPS5822801U (en) | electric car control device | |
| JPS6122197U (en) | Inverter-driven linear motor conveyor | |
| JPH0746073Y2 (en) | Power converter | |
| JPH0196798U (en) | ||
| JPS62185499U (en) | ||
| JPH0340900U (en) | ||
| JPS59141496U (en) | Electric motor deceleration control device | |
| JPS61174899U (en) | ||
| JPH03120693U (en) | ||
| JPS6295402U (en) | ||
| JPH0567192U (en) | Inverter smoothing circuit | |
| JPS6226192U (en) | ||
| JPS5821507B2 (en) | inverter warmer | |
| JPS61134696U (en) | ||
| JPS62178795U (en) | ||
| JPS6315194U (en) | ||
| JPS62149296U (en) | ||
| JPS60114999U (en) | Reactor coolant recirculation pump drive power supply | |
| JPS6152498U (en) | ||
| JPS622385U (en) | ||
| JPS5860661U (en) | DC elevator control device | |
| JPH01146797U (en) | ||
| JPS63109593U (en) |