JPH01146797U - - Google Patents
Info
- Publication number
- JPH01146797U JPH01146797U JP3620788U JP3620788U JPH01146797U JP H01146797 U JPH01146797 U JP H01146797U JP 3620788 U JP3620788 U JP 3620788U JP 3620788 U JP3620788 U JP 3620788U JP H01146797 U JPH01146797 U JP H01146797U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- regenerative braking
- reference voltage
- 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.)
- Pending
Links
- 230000006698 induction Effects 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Ac Motors In General (AREA)
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案の制御回路の構成図、第２図は
本考案の放電信号制御回路の詳細な回路構成図、
第３図は従来の技術の制御回路構成図である。
１は三相交流電源、２はコンバータ部、３は放
電部、４はインバータ部、５は誘導電動機、７は
整流回路、９は放電信号制御回路。
Fig. 1 is a block diagram of the control circuit of the present invention, Fig. 2 is a detailed circuit block diagram of the discharge signal control circuit of the present invention,
FIG. 3 is a block diagram of a conventional control circuit. 1 is a three-phase AC power supply, 2 is a converter section, 3 is a discharge section, 4 is an inverter section, 5 is an induction motor, 7 is a rectifier circuit, and 9 is a discharge signal control circuit.
Claims (1)
度制御するクレーンにおいて、電源電圧に対応し
た基準電圧を発生させる整流回路と、回生制動時
に誘導電動機の運動エネルギーを放電させる放電
部と、インバータ装置の主回路の電圧を検出し、
前記整流回路で発生させた前記基準電圧とを比較
し、回生制動時においてインバータ装置の主回路
の電圧が前記基準電圧に対し所定値になると放電
部に放電開始信号を出力する回路を備えた放電信
号制御回路とを具備することを特徴とするクレー
ンの回生制動制御回路。 In a crane that uses a voltage source inverter to control the speed of an induction motor, there is a rectifier circuit that generates a reference voltage corresponding to the power supply voltage, a discharge section that discharges the kinetic energy of the induction motor during regenerative braking, and the main circuit of the inverter. detects the voltage of
A discharge unit comprising a circuit that compares the reference voltage generated by the rectifier circuit and outputs a discharge start signal to the discharge unit when the voltage of the main circuit of the inverter device reaches a predetermined value with respect to the reference voltage during regenerative braking. A regenerative braking control circuit for a crane, comprising a signal control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3620788U JPH01146797U (en) | 1988-03-17 | 1988-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3620788U JPH01146797U (en) | 1988-03-17 | 1988-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146797U true JPH01146797U (en) | 1989-10-11 |
Family
ID=31262824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3620788U Pending JPH01146797U (en) | 1988-03-17 | 1988-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011084374A (en) * | 2009-10-16 | 2011-04-28 | Kawasaki Heavy Ind Ltd | Cargo handling machine |
-
1988
- 1988-03-17 JP JP3620788U patent/JPH01146797U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011084374A (en) * | 2009-10-16 | 2011-04-28 | Kawasaki Heavy Ind Ltd | Cargo handling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01146797U (en) | ||
| JPH01120797U (en) | ||
| JPH0340900U (en) | ||
| JPS6257541U (en) | ||
| JPS61162300U (en) | ||
| JPH03120693U (en) | ||
| JPS622385U (en) | ||
| JPS59141496U (en) | Electric motor deceleration control device | |
| JPS6226192U (en) | ||
| JPS6437351U (en) | ||
| JPS62185499U (en) | ||
| JPH0410600U (en) | ||
| JPH02136483U (en) | ||
| JPS6211396U (en) | ||
| JPS6412442U (en) | ||
| JPS62145492U (en) | ||
| JPS59173490U (en) | AC elevator control device | |
| JPS6295402U (en) | ||
| JPS6152498U (en) | ||
| JPS63105500U (en) | ||
| JPS63109596U (en) | ||
| JPH0171999U (en) | ||
| JPH01116598U (en) | ||
| JPS61174899U (en) | ||
| JPS62140896U (en) |