Patent application number | Description | Published |
20080303279 | Generating Unit and Method For Producing a Current With a Predetermined Network Frequency - According to the invention, a drive is embodied to drive a rotor at a variable rotational frequency; the rotor has a winding that is embodied to produce a rotary field magnetomotive force of a generator, with a rotor rotary field frequency which is variable in relation to the rotor; the frequency converter is electrically connected to the rotor winding; a regulating device comprises a recording element for measuring values of the generator, a calculating unit for a generator simulation, and a transmitter for transmitting a control signal to the frequency converter; and, on the basis of the control signal, an electrical excitation of the rotor winding can be triggered by the frequency converter in such a way that a pre-determined stator rotary field frequency is present in the event of a variable rotational frequency of the rotor and a variable rotor rotary field frequency | 12-11-2008 |
20090254308 | Method for Automatic Monitoring of Generator Operation - The invention relate to a method for automatic monitoring of generator operation, which method has the following steps: recording of generator input variables, calculation of set generator output variables based on the recorded generator input variables, recording of the actual generator output variables, comparison of the recorded actual generator output variables with the calculated set generator output variables, and evaluation of the comparison results. | 10-08-2009 |
20090295252 | Arrangement With Generator Bars for a Stator of an Electrical Generator - An arrangement having at least two generator bars for a stator of an electrical generator which are electrically connected to one another via a respective bar end is characterized, according to the invention, by the fact that the respective bar ends, which are electrically connected to one another, of the at least two generator bars are braced with respect to one another by means of a tape. | 12-03-2009 |
20090302696 | Oscillation Damping System for a Stator of an Electrical Machine - An oscillation damping system for stator windings is provided which includes a supporting component of an end winding. The supporting component is equipped with damping elements, which are arranged asymmetrically in the circumferential direction in order to suppress excited natural oscillations. Masses or springs and screw-type restraints which connect the supporting component to the stator housing are suitable as damping elements. | 12-10-2009 |
20120119603 | ROTOR FOR A TURBO GENERATOR, AND TURBO GENERATOR COMPRISING A ROTOR - A rotor for a turbo generator is provided. The rotor includes a cylindrical rotor shaft that expands in the center to form a rotor body, grooves introduced into the cylindrical surface of the rotor body, an excitation winding accommodated in the grooves, a feeding duct through which a cooling gas flows, and cooling ducts which penetrate the excitation winding substantially in the radial direction and connect the feeding duct to respective outlets in the cylindrical surface of the rotor body A distribution duct extending in the longitudinal direction of the shaft is arranged in the area of the central longitudinal axis. The feeding ducts are connected to the distribution duct via junction ducts. An admission duct for feeding the cooling gas is provided for each distribution duct. | 05-17-2012 |
20120187923 | METHOD AND ASSEMBLY FOR THE TURNING GEAR OPERATION OF A TURBO SET - An assembly including an electric generator and a steam turbine and an excitation device is provided. The excitation device is designed such that during nominal operation the auxiliary excitation machine is designed as permanently excited synchronous machine and the auxiliary excitation machine is designed as a synchronous motor or turning gear motor in a turning gear operation. | 07-26-2012 |
20120299248 | Shaft sealing ring for a barrier oil sealing system of a hydrogen-cooled generator - A shaft sealing ring for a barrier oil sealing system of a hydrogen-cooled generator is designed, in the installed state, to bear radially against a generator shaft by way of its running surface arranged on the inner side and to interact with the generator shaft, under the action of a barrier oil, with hydrogen sealing, wherein the shaft sealing ring is produced from a lead bronze material. | 11-29-2012 |
20150188373 | WINDING FOR AN ELECTRICAL MACHINE - A winding for an electric machine is provided. The electric machine includes conductor bars which are arranged one above the other and each of which has a cooling slot. The conductor bars are designed such that the height of the conductor bars increases in the radial direction and the effective cooling cross-section decreases in the radial direction. | 07-02-2015 |