Siemens Aktiengesellschaft

Stefan Kuenzel

Wolfgang Papiernik

Thomas Grohmann

Guido Seeger

Bernd Quaschner

Johannes Welker

Gerhard Heinemann

Carsten Spindler

Michael Jaentsch

Klaus Georg

Daniel Boenke

A control device, linear device, non-transitory computer readable medium and method by which optimal vibration damping can also be achieved in a simple manner when transferring a carrier from one segment to the next segment, where a primary part includes a plurality of sequentially consecutive segments that are each connected to a supply voltage via a respective converter, such that each of plurality of sequentially consecutive the segments receive respective currents of a three-phase system.

Linear Drive with cross-controller vibration damping

A method of maximizing the power or torque output of a synchronous motor with reluctance effect is disclosed. Bases on torque and voltage set points, in the regulation of the synchronous motor, an optimal torque- and field producing current is generated. The method can further generate an optimal voltage which can maximize the power output of a synchronous motor since changes of inductances generated by the current itself can be accounted for.

Method for maximizing power output in permanent field synchronous motors

The invention makes it possible to execute the pre-control and the fine interpolation in the drive (A) in the fast drive clock (tDR) with a slower path pre-setting in the clock (tNC) of the NC. For this purpose, in each NC clock (tNC) a setpoint speed value (nNC*) and the P gain (kP) of the NC position controller (L_NC) and the desired axle speed (nNC) and the average axle speed (nNCMW) during the last NC position controller clock are transferred from the NC to the drive. From this information, polynomial segments of the third degree are in each case generated on the drive side, valid for the duration of an NC position controller clock (tNC). They are constructed in such a way that the speed at the polynomial transitions is constant. A variable component of the position polynomial is determined as the fine position component xF, with which the setpoint position values are finely interpolated in the drive. Furthermore, the speed (nVor) and the torque (iVor) can also be pre-controlled in a finely interpolated form in the drive, since the polynomial of the third degree can be differentiated twice.

Method of control and control structure for the movement control, pre-control and fine interpolation of objects in a speed controller clock which is faster than the position controller clock

Method for the determination for an actual speed of a movable displacement element

A position control branch for a hydraulic drive is prescribed a desired position. The hydraulic drive is moved to an actual position via the position control branch. It is determined whether the hydraulic drive has come to a standstill. On detection of a standstill, a desired direction of movement is determined with the aid of the actual position and the desired position. A force value dependent on the desired direction of movement is then applied to the hydraulic drive via a force precontroller connected in parallel with the position control branch.

Control method for a hydraulic drive, and a control device corresponding thereto

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Erlangen, Germany

Stefan Kuenzel