FIELD: process engineering.
SUBSTANCE: invention relates to dc motor ACS. Proposed method comprises measurement of actual motor shaft rpm in rolling. Motor rpm is adjusted. Note here that measured motor shaft rpm is compared with preset one. In case inconsistency occurs, square voltage pulse opposed to deviation of motor shaft rpm it is generated and fed to motor armature. Magnitude and length of voltage are selected subject to control over minimum change in motor armature current at preset motor shaft rpm of reaching the preset rpm.
EFFECT: decreased amplitude and time of transients at variation of rpm and/or torque at DC motor shaft.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| APPARATUS FOR CONTROLLING STRIP TENSION | 0 |
|
SU1009551A1 |
| METHOD AND APPARATUS FOR CONTROLLING TENSION BETWEEN MILL STANDS | 0 |
|
SU1738400A1 |
| DEVICE FOR IMPACT REDUCTION IN ROLLING MILL STAND | 0 |
|
SU1819167A3 |
| ELECTRIC DRIVE FOR ROLLING MILL | 2013 |
|
RU2539631C1 |
| APPARATUS FOR REGULATING ROLLED STOCK DIMENSIONS | 0 |
|
SU900901A1 |
| ROLLING MILL STAND ELECTRIC DRIVE | 0 |
|
SU970615A1 |
| D.C.DRIVE WITH LEADING CURRENT LIMITING | 0 |
|
SU1105999A1 |
| SYSTEM FOR AUTOMATIC CONTROL OF PIECE-WISE REDUCING WITH TENSION ON MULTISTAND MILL WITH INDEPENDENT ELECTRIC DRIVE | 0 |
|
SU1297959A1 |
| CONTACTLESS DEVICE FOR INDICATING METAL PRESENCE IN THE STAND OF ROLLING MILL | 0 |
|
SU738705A1 |
| METHOD FOR SETTING SPEED MODE OF CONTINUOUS GROUP OF ROLLING STANDS OF HOT ROLLING MILL AT PROVIDING MINIMUM TENSION BETWEEN STANDS | 2002 |
|
RU2198753C1 |
