PROCEDURE FOR THE ENTERPRISE OF A THREE-PHASE STATIC FREQUENCY CHANGER CIRCUIT

IMPROVED PROCEDURE FOR THE BALANCING OF A DC VOLTAGE CIRCLE OF A STATIC FREQUENCY CHANGER CIRCUIT FOR THE CIRCUIT OF THREE TENSION LEVELS

PROCEDURE FOR THE BALANCING OF A DC VOLTAGE CIRCLE OF A STATIC FREQUENCY CHANGER CIRCUIT FOR THE CIRCUIT OF THREE TENSION LEVELS

PROCEDURE FOR THE ENTERPRISE OF A THREE-PHASE ROTATING ELECTRICAL MACHINE AS WELL AS DEVICE FOR THE EXECUTION OF THE PROCEDURE

Method for operation of a three-phase rotating electrical machine, and an apparatus for carrying out the method

A method and apparatus are provided for operation of a three-phase rotating electrical machine which has at least two stator winding sets and each stator winding set has three phase windings connected in star, and the star circuits of the stator winding sets have a phase shift of 30 degrees electrical with respect to one another, and an associated converting unit is respectively provided for each stator winding set, in which method the respective stator winding set is fed by the associated converter unit, and a respectively associated regulation device is provided for each converter unit, and each converter unit is driven by means of a drive signal from the associated regulation device independently of regulation devices of the respective other converter units.

Verbessertes Verfahren zur Symmetrierung eines Gleichspannungskreises einer Umrichterschaltung zur Schaltung von drei Spannungsniveaus

Verfahren zum Betrieb einer dreiphasigen rotierenden elektrischen Maschine sowie Vorrichtung zur Durchführung des Verfahrens

Verfahren zum Betrieb einer dreiphasigen Umrichterschaltung

Verfahren zur Symmetrierung eines Gleichspannungskreises einer Umrichterschaltung zur Schaltung von drei Spannungsniveaus

Method for operating a three-phase rotating electric machine and device for implementing the method

This invention refers to a method and apparatus for operation of a three-phase rotating electrical machine, specifically referring to a method for operation of a three-phase rotating electrical machine. The electrical machine has at least two stator winding sets and each stator winding set has three phase windings connected in star; and an associated converting unit is respectively provided for each stator winding set, a respectively associated regulation device is provided for each converter unit, and each converter unit is driven by means of a drive signal from the associated regulation device independently of regulation devices of the respective other converter units, wherein, with regard to the respective regulation device, the drive signal is produced in the regulation device by regulation of the actual torque value at a pre-determinable reference torque value and a regulation of the actual stator flux value at a total reference stator flux value, and wherein, with regard to the respective ...

METHOD FOR BALANCED A DC VOLTAGE CIRCUIT OF A CONVERTER CIRCUIT FOR SWITCHING THREE VOLTAGE LEVELS

The modulation factor (m) is continuously determined for each phase (u,v,w), and monitored in comparison with a modulation factor threshold (Sm). When a first threshold (UDCS1) is not reached or exceeded, and the modulation factor threshold is exceeded, the modulation factor is reduced by selecting a sequence (PM) from a number of sequences, for a selectable time period.

Verfahren zum betrieb einer dreiphasigen rotierenden elektrischen maschine sowie vorrichtung zur durchführung des verfahrens

Method for operation of a three-phase rotating electrical machine, and an apparatus for carrying out the method

Verfahren zum betrieb einer dreiphasigen umrichterschaltung