JPH0127678B2 - - Google Patents
Info
- Publication number
- JPH0127678B2 JPH0127678B2 JP56041061A JP4106181A JPH0127678B2 JP H0127678 B2 JPH0127678 B2 JP H0127678B2 JP 56041061 A JP56041061 A JP 56041061A JP 4106181 A JP4106181 A JP 4106181A JP H0127678 B2 JPH0127678 B2 JP H0127678B2
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- reactor
- adjusting
- drive motor
- roll
- 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.)
- Expired
Links
- 238000005096 rolling process Methods 0.000 claims description 35
- 230000001172 regenerating effect Effects 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000010349 pulsation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/008—Skew rolling stands, e.g. for rolling rounds
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/281—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices the DC motor being operated in four quadrants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Multiple Motors (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56041061A JPS57156695A (en) | 1981-03-20 | 1981-03-20 | Controller for dc motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56041061A JPS57156695A (en) | 1981-03-20 | 1981-03-20 | Controller for dc motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57156695A JPS57156695A (en) | 1982-09-28 |
JPH0127678B2 true JPH0127678B2 (es) | 1989-05-30 |
Family
ID=12597902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56041061A Granted JPS57156695A (en) | 1981-03-20 | 1981-03-20 | Controller for dc motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57156695A (es) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5336031B2 (es) * | 1975-06-07 | 1978-09-30 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634550Y2 (es) * | 1976-09-02 | 1981-08-14 |
-
1981
- 1981-03-20 JP JP56041061A patent/JPS57156695A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5336031B2 (es) * | 1975-06-07 | 1978-09-30 |
Also Published As
Publication number | Publication date |
---|---|
JPS57156695A (en) | 1982-09-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU702631B2 (en) | Driving means formed by induction motor and method for starting the same | |
US8692495B2 (en) | Roller mill and method for size reduction of ground material | |
DE2636128A1 (de) | Kraftwerksanlage und verfahren zu deren betrieb | |
US2342790A (en) | Control system | |
JPH0127678B2 (es) | ||
CN109322691B (zh) | 隧道风机的能耗制动装置 | |
CN107742996B (zh) | 一种全回转舵桨的电动回转驱动系统及控制方法 | |
US2223728A (en) | Control system for reversible rolling mills | |
JP2798033B2 (ja) | 誘導電動機による駆動装置及びその始動運転方法 | |
US2176039A (en) | Run-out table drive | |
EP1430594B1 (de) | Kaskade mit elektronischer abschaltung und erweitertem drehzahlbereich | |
JPH1080189A (ja) | 二重給電式電気回転機械の制御方法とこの方法を使用する機械 | |
JPS63206195A (ja) | インバ−タ電源駆動モ−タ | |
US5550444A (en) | Device and process for the reversible storage of electric energy by its reversible conversion to kinetic energy | |
JPS5810960B2 (ja) | 電動機の電源切替制御方法 | |
JP3044894B2 (ja) | 風車発電機 | |
Scott et al. | Large grinding mill drives update | |
JPH02266885A (ja) | 圧延機用電動機の速度制御方法 | |
AU2016416850B2 (en) | Method for actuating a motor for starting a mill | |
JPH04146223A (ja) | モータ駆動システム | |
US2785363A (en) | Rotary inverter power conversion system | |
Madisetti et al. | Trends in the electronic control of mine hoists | |
US3667015A (en) | Alternating current motor starting apparatus and method | |
CN2251832Y (zh) | 鼠笼式转子异步调速电机 | |
Dick | Spotting drives for large motors |