JPS61159897U - - Google Patents
Info
- Publication number
- JPS61159897U JPS61159897U JP4228185U JP4228185U JPS61159897U JP S61159897 U JPS61159897 U JP S61159897U JP 4228185 U JP4228185 U JP 4228185U JP 4228185 U JP4228185 U JP 4228185U JP S61159897 U JPS61159897 U JP S61159897U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- voltage reference
- pulse width
- induction motor
- 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 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000003786 synthesis reaction Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
図面は本考案の一実施例を示す誘導電動機の電
源装置の構成図である。
２……整流器、３……直流コンデンサ、４……
インバータ、５……速度基準抵抗、８……回生電
力放電回路、９……電流検出器、１０……電流方
向判別器、１１……電圧基準補正回路、１２……
周波数基準回路、１３……電圧基準回路、１４…
…パルス制御回路、１５……ベースドライブ回路
。
The drawing is a configuration diagram of a power supply device for an induction motor showing an embodiment of the present invention. 2... Rectifier, 3... DC capacitor, 4...
Inverter, 5... Speed reference resistor, 8... Regenerative power discharge circuit, 9... Current detector, 10... Current direction discriminator, 11... Voltage reference correction circuit, 12...
Frequency reference circuit, 13... Voltage reference circuit, 14...
...Pulse control circuit, 15...Base drive circuit.
Claims (1)
置。 (イ) 三相入力電源を順変換して直流電圧に整流
する順変換装置。 (ロ) この順変換装置の直流主回路に接続されて
前記直流電圧を誘導電動機の交流電源に逆変換す
る逆変換装置。 (ハ) 前記直流主回路に接続された直流コンデン
サ。 (ニ) この直流コンデンサと並列に接続された放
電抵抗及び制御素子の直列回路。 (ホ) 前記誘導電動機の回転速度を予め定める速
度基準回路。 (ヘ) この速度基準回路の整定によつて電圧基準
値を定める電圧基準回路。 (ト) 前記直流主回路に流れる直流電流を計測す
る電流検出器。 (チ) この電流検出器に接続されて前記直流電流
の流れる方向を判別する電流方向判別器。 (リ) この電流方向判別器の出力信号によつて前
記電圧基準回路の電圧基準値を補正する電圧基準
補正回路。 (ヌ) 前記電圧基準回路からの電圧出力信号によ
つて出力パルスのパルス幅を変調するパルス幅変
調合成回路。 (ル) このパルス幅変調合成回路からのパルス幅
信号によつて前記逆変換装置の制御信号を出力す
る出力信号制御回路。[Claims for Utility Model Registration] A power supply device for an induction motor consisting of the following components. (a) A forward converter that converts three-phase input power and rectifies it into DC voltage. (b) A reverse converter connected to the DC main circuit of the forward converter to reversely convert the DC voltage into AC power for the induction motor. (c) A DC capacitor connected to the DC main circuit. (d) A series circuit of a discharge resistor and a control element connected in parallel with this DC capacitor. (E) A speed reference circuit that predetermines the rotational speed of the induction motor. (f) A voltage reference circuit that determines the voltage reference value by setting this speed reference circuit. (G) A current detector that measures the DC current flowing in the DC main circuit. (H) A current direction discriminator connected to the current detector to discriminate the direction in which the direct current flows. (li) A voltage reference correction circuit that corrects the voltage reference value of the voltage reference circuit based on the output signal of the current direction discriminator. (j) A pulse width modulation synthesis circuit that modulates the pulse width of an output pulse using a voltage output signal from the voltage reference circuit. (l) An output signal control circuit that outputs a control signal for the inverse conversion device based on the pulse width signal from the pulse width modulation synthesis circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4228185U JPS61159897U (en) | 1985-03-26 | 1985-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4228185U JPS61159897U (en) | 1985-03-26 | 1985-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61159897U true JPS61159897U (en) | 1986-10-03 |
Family
ID=30552891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4228185U Pending JPS61159897U (en) | 1985-03-26 | 1985-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61159897U (en) |
-
1985
- 1985-03-26 JP JP4228185U patent/JPS61159897U/ja active Pending
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