JPS6168696U - - Google Patents
Info
- Publication number
- JPS6168696U JPS6168696U JP15221084U JP15221084U JPS6168696U JP S6168696 U JPS6168696 U JP S6168696U JP 15221084 U JP15221084 U JP 15221084U JP 15221084 U JP15221084 U JP 15221084U JP S6168696 U JPS6168696 U JP S6168696U
- Authority
- JP
- Japan
- Prior art keywords
- motors
- load current
- voltage
- large number
- type inverter
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
- Control Of Multiple Motors (AREA)
Description
第1図は本考案の電圧型インバータの過電圧吸
収装置の実施例の回路図である。
図中、はインバータ、1は順変換部、2は電
解コンデンサ、3はスイツチ、4は抵抗、5は逆
変換部、6は開閉器、7は電動機、8は計器用変
流器、9は整流回路、10は増幅器、11は電流
設定器、12は比較器を示す。
FIG. 1 is a circuit diagram of an embodiment of an overvoltage absorbing device for a voltage type inverter according to the present invention. In the figure, is an inverter, 1 is a forward conversion section, 2 is an electrolytic capacitor, 3 is a switch, 4 is a resistor, 5 is an inverse conversion section, 6 is a switch, 7 is a motor, 8 is a current transformer for measuring instruments, and 9 is a In the rectifier circuit, 10 is an amplifier, 11 is a current setting device, and 12 is a comparator.
Claims (1)
よりなる逆変換部とを有し、その出力側に接続さ
れた多数の電動機群を速度制御する電圧型インバ
ータであつて、電動機群の並列運転時の回生エネ
ルギーを力行運転時の電動機に供給するものにお
いて、 前記電動機群に供給される負荷電流を検出する
負荷電流検出手段と、 前記電動機群が少数台運転時(1台乃至数台分
に相当)の負荷電流に設定された基準信号を出力
する電流設定器と、 前記検出手段からの負荷電流と電流設定器の基
準信号とを比較して電動機群が多数台運転か少数
台運転かを判別する比較器と、 前記比較器から導びかれる信号を基に、多数台
運転であれば開路され、少数台運転であれば閉路
される開閉制御が行なわれ、かつインバータ直流
中間回路に介挿されているスイツチと、 前記スイツチと直列接続された抵抗と を備える電圧型インバータの過電圧吸収装置。[Claims for Utility Model Registration] A voltage-type inverter that has a forward conversion section and an inverse conversion section consisting of a thyristor and a feedback diode, and controls the speed of a large number of motor groups connected to the output side of the voltage-type inverter, A device for supplying regenerative energy during parallel operation of a group of motors to a motor during power running, comprising: load current detection means for detecting a load current supplied to the group of motors; A current setting device outputs a reference signal set to a load current corresponding to several motors (equivalent to several motors), and the load current from the detection means is compared with the reference signal of the current setting device to determine whether a large number of motors are in operation or a small number of motors are being operated. Based on a comparator that determines whether the unit is in operation, and a signal derived from the comparator, opening/closing control is performed in which the circuit is opened if a large number of units are in operation, and closed if a small number of units are in operation. An overvoltage absorption device for a voltage type inverter, comprising: a switch inserted in a circuit; and a resistor connected in series with the switch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15221084U JPH0127436Y2 (en) | 1984-10-08 | 1984-10-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15221084U JPH0127436Y2 (en) | 1984-10-08 | 1984-10-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6168696U true JPS6168696U (en) | 1986-05-10 |
JPH0127436Y2 JPH0127436Y2 (en) | 1989-08-16 |
Family
ID=30710284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15221084U Expired JPH0127436Y2 (en) | 1984-10-08 | 1984-10-08 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0127436Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010022184A (en) * | 2008-07-14 | 2010-01-28 | Kamimura Kogyo:Kk | Apparatus and method for controlling plural pmsms (permanent magnet synchronous motor) |
WO2015019405A1 (en) * | 2013-08-05 | 2015-02-12 | 三菱電機株式会社 | Electric vehicle control system and power conversion device |
-
1984
- 1984-10-08 JP JP15221084U patent/JPH0127436Y2/ja not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010022184A (en) * | 2008-07-14 | 2010-01-28 | Kamimura Kogyo:Kk | Apparatus and method for controlling plural pmsms (permanent magnet synchronous motor) |
WO2015019405A1 (en) * | 2013-08-05 | 2015-02-12 | 三菱電機株式会社 | Electric vehicle control system and power conversion device |
US9522613B2 (en) | 2013-08-05 | 2016-12-20 | Mitsubishi Electric Corporation | Electric vehicle control system and power conversion device |
Also Published As
Publication number | Publication date |
---|---|
JPH0127436Y2 (en) | 1989-08-16 |
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