http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2007122063-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P25-00 |
| filingDate | 2007-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2008-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2007122063-A |
| titleOfInvention | AC ELECTRIC DRIVE |
| abstract | 1. An AC electric drive containing an induction motor, a thyristor voltage converter connected between the stator winding of the motor and the supply network, a stator EMF meter with current and voltage sensors of the motor, the outputs of which are connected to the inputs of the stator EMF meter, a functional block that implements the dependence ω = f (E, U), where E, U are the EMF and voltage of the motor, the control unit, the output of which is connected to the control input of the thyristor voltage converter, the speed control unit and the back unit of rotation speed, connected with its output to the first input of the speed controller block, the second input of which is connected to the output of the function block, and the inputs of the function block are connected to the output of the EMF meter and the output of the voltage sensor, and the EMF meter is based on a zero-organ and a calculation unit EMF that implements the dependence E = f (U, T), where T is the duration of a dead time pause, while the input of the zero-organ is connected to the output of the current sensor, and the output of the zero-organ is connected to the first input of the EMF calculation unit, the second input of which connected to the output of the voltage sensor, characterized in that it is additionally equipped with a second voltage sensor, the output of which is connected to an additional input of the EMF calculation unit, and voltage sensors of the motor are used as voltage sensors, and the EMF calculation unit is configured to implement the dependence: where T- duration of a dead time pause in phase B; u, u are the values of the linear voltages on the motor stator obtained at the beginning of the dead time pause in phase B; u, u are the values of the linear voltages on the motor stator |
| priorityDate | 2007-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID426185581 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID11957446 |
Total number of triples: 10.