Patents by Inventor Heiko Zatocil

Heiko Zatocil has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200106376
    Abstract: An embodiment relates to a method for operating a three-phase machine including a rotor and a stator connected to a three-phase network. The stator is connected to the three-phase network via a first semiconductor circuit arrangement for forming a first rotational field rotating in a first direction of rotation in the stator and via a second semiconductor circuit arrangement for forming a second rotational field rotating in a direction of rotation opposite to the first direction of rotation in the stator. The three-phase machine further includes a controller. The method includes controlling, via the controller, semiconductors of the first and second semiconductor circuit arrangement to accelerate the rotor by current pulses of both the first rotational field and second rotational field in the first direction of rotation.
    Type: Application
    Filed: September 18, 2019
    Publication date: April 2, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Hauke NANNEN, Heiko ZATOCIL
  • Publication number: 20200059183
    Abstract: In order to achieve the energy efficiency class IE4 defined in the IEC standard 60034, it is necessary to operate permanently excited synchronous machines directly on the mains. Because this is not readily possible, soft start devices may be considered as cost-efficient solutions. A method is described by which the initial rotor angle is defined, which can then be used by an encoderless start process. The fundamental concept is based on energizing in a defined direction. This is achieved in that solely two actuator phases are fired. A current space vector is thereby applied to the machine in a fixed direction and the machine is then aligned thereto. The successful alignment and a blocked motor can thus be recognized based on the profile of the stator current space vector.
    Type: Application
    Filed: October 17, 2016
    Publication date: February 20, 2020
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: HAUKE NANNEN, HEIKO ZATOCIL
  • Publication number: 20190267921
    Abstract: In order to achieve the energy efficiency class IE4 defined in IEC standard 60034, it is necessary to operate permanent-magnet synchronous machines directly from the supply system. Since this is not readily possible, soft-starting devices come into consideration as cost-effective solutions. The problem of transmitter-free running up can be split into two component problems: determining the initial rotor angle and running up the machine. The present invention describes a (rotary) transmitter-free starting method with which the motor can be started using a soft-starting device.
    Type: Application
    Filed: November 10, 2016
    Publication date: August 29, 2019
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: HAUKE NANNEN, HEIKO ZATOCIL
  • Patent number: 9146166
    Abstract: A method for determining an electrical torque of an electrical machine includes determining an electrical torque in a first speed range with a first algorithm, and determining the electrical torque in a second speed range with a second algorithm which differs from the first algorithm. An upper limit of the second speed range is slightly higher than a lower limit of the first speed range. An apparatus is provided to determine the electrical torque of the electrical machine with the aforedescribed method.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: September 29, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Hans-Georg Köpken, Stefan Künzel, Hubert Schierling, Günter Schwesig, Heiko Zatocil
  • Publication number: 20140026681
    Abstract: A method for determining an electrical torque of an electrical machine includes determining an electrical torque in a first speed range with a first algorithm, and determining the electrical torque in a second speed range with a second algorithm which differs from the first algorithm. An upper limit of the second speed range is slightly higher than a lower limit of the first speed range. An apparatus is provided to determine the electrical torque of the electrical machine with the aforedescribed method.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventors: Hans-Georg Köpken, Stefan Künzel, Hubert Schierling, Günter Schwesig, Heiko Zatocil
  • Patent number: 8604745
    Abstract: A method for the identification without shaft encoder of magnetomechanical characteristic quantities of a three-phase asynchronous comprising: —constant voltage impression U1? in ? axial direction in order to generate a constant magnetic flux; —test signal voltage supply U1? in ? axial direction of the asynchronous motor, whereby the ? axial direction remains supplied with constant current; —measuring signal current measurement I1? in ? stator axial direction of the asynchronous motor; —identification of mechanical characteristic quantities of the asynchronous motor based on the test signal voltage U1? and on the measuring signal current I1?, whereby the rotor can execute deflection movements. Method can also be used for control of electrical drives. An identification apparatus for the determination of mechanical characteristic quantities of an asynchronous motor and for motor control, whereby the identified characteristic quantities can be used to determine, optimize and monitor a motor control.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: December 10, 2013
    Assignee: Baumuller Nurnberg GmbH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Patent number: 8587234
    Abstract: Identification without shaft encoder of electrical equivalent circuit parameters of a three-phase asynchronous motor comprising: -standstill position search of the rotor, so that the d flux axial direction of the rotor is aligned opposite the cc axial direction of the stator; -test signal voltage supply U1d in the d flux axial direction of the motor whereby the q transverse axial direction remains without current; -measuring signal current I1d of the d flux axial direction of the motor; -identification of equivalent circuit parameters of the motor based on the test signal voltage U1d and on the measuring signal current I1d in the d flux axial direction; whereby the rotor remains torque-free. The method used to control electrical drives. An identification apparatus for a synchronous motor and a motor control device comprising the apparatus, whereby identified equivalent circuit parameters can be used to determine, optimize and monitor a motor control.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 19, 2013
    Assignee: Baumuller Nurnberg GmbH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Patent number: 8587239
    Abstract: Identification of electrical equivalent circuit parameters (15) of a three-phase asynchronous motor (09) without a shaft encoder. The method comprises—Assumption of a standstill position of the rotor (11);—Equidirectional test signal infeed U1?, U1? in ? and ? in the stator axis direction of the asynchronous motor (09);—Measuring of a measuring signal I1?, I1? of the ? and ? axial direction of the asynchronous motor (09); and—Identification of equivalent circuit parameters of the asynchronous motor (09) on the basis of the test signal voltages U1?, U1? and of the measuring signal currents I1?, I1?; whereby the test signal feed allows the rotor (11) to remain torque-free. Determination of equivalent circuit parameters (15) of an asynchronous motor (09) as well relates to a motor control device (35), whereby the identified equivalent circuit parameters (15) can be used for the determination, optimization and monitoring of a motor control and for control of electrical drives.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 19, 2013
    Assignee: Baumuller Nurnberg GmbH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Patent number: 8587250
    Abstract: A method for the identification without a shaft encoder of magnetomechanical characteristic quantities, in particular the mass moment of inertia J and the permanent magnetic flux ?PM between rotor and stator of a three-phase synchronous motor, comprising:—constant voltage supply U1d in the d flux axial direction;—test signal voltage supply U1q in the q transverse flux axial direction;—measuring signal current measuring I1q of the q transverse flux axial direction;—identification of magnetomechanical characteristic quantities of the synchronous motor on the basis of the test signal voltage U1q and of the measuring signal current I1q; whereby the rotor can execute deflection movements with pre-definable maximal amplitudes. Method use also for control of electrical drives.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 19, 2013
    Assignee: Baumuller Nurnberg GmbH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Publication number: 20120038298
    Abstract: Identification without shaft encoder of electrical equivalent circuit parameters of a three-phase asynchronous motor comprising: standstill position search of the rotor, so that the d flux axial direction of the rotor is aligned opposite the ? axial direction of the stator; test signal voltage supply U1d in the d flux axial direction of the motor whereby the q transverse axial direction remains without current; measuring signal current I1d of the d flux axial direction of the motor; identification of equivalent circuit parameters of the motor based on the test signal voltage U1d and on the measuring signal current I1d in the d flux axial direction; whereby the rotor remains torque-free. The method used to control electrical drives. An identification apparatus for a synchronous motor and a motor control device comprising the apparatus, whereby identified equivalent circuit parameters can be used to determine, optimize and monitor a motor control.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: BAUMULLER NURNBERG GMBH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Publication number: 20120038299
    Abstract: A method for the identification without a shaft encoder of magnetomechanical characteristic quantities, in particular the mass moment of inertia J and the permanent magnetic flux ?PM between rotor and stator of a three-phase synchronous motor, comprising: —constant voltage supply U1d in the d flux axial direction; —test signal voltage supply U1q in the q transverse flux axial direction; —measuring signal current measuring I1q of the q transverse flux axial direction; —identification of magnetomechanical characteristic quantities of the synchronous motor on the basis of the test signal voltage U1q and of the measuring signal current I1q; whereby the rotor can execute deflection movements with pre-definable maximal amplitudes. Method use also for control of electrical drives.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: BAUMULLER NURNBERG GMBH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Publication number: 20120038303
    Abstract: Identification of electrical equivalent circuit parameters (15) of a three-phase asynchronous motor (09) without a shaft encoder. The method comprises—Assumption of a standstill position of the rotor (11);—Equidirectional test signal infeed U1?, U1? in ? and ? in the stator axis direction of the asynchronous motor (09);—Measuring of a measuring signal I1?, I1? of the ? and ? axial direction of the asynchronous motor (09); and—Identification of equivalent circuit parameters of the asynchronous motor (09) on the basis of the test signal voltages U1?, U1? and of the measuring signal currents I1?, I1?; whereby the test signal feed allows the rotor (11) to remain torque-free. Determination of equivalent circuit parameters (15) of an asynchronous motor (09) as well relates to a motor control device (35), whereby the identified equivalent circuit parameters (15) can be used for the determination, optimization and monitoring of a motor control and for control of electrical drives.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: BAUMULLER NURNBERG GMBH
    Inventors: Sebastian Villwock, Heiko Zatocil
  • Publication number: 20120038311
    Abstract: A method for the identification without shaft encoder of magnetomechanical characteristic quantities of a three-phase asynchronous comprising: constant voltage impression U1? in ? axial direction in order to generate a constant magnetic flux; test signal voltage supply U1? in ? axial direction of the asynchronous motor, whereby the ? axial direction remains supplied with constant current; measuring signal current measurement I1? in ? stator axial direction of the asynchronous motor; identification of mechanical characteristic quantities of the asynchronous motor based on the test signal voltage U1? and on the measuring signal current I1?, whereby the rotor can execute deflection movements. Method can also be used for control of electrical drives. An identification apparatus for the determination of mechanical characteristic quantities of an asynchronous motor and for motor control, whereby the identified characteristic quantities can be used to determine, optimize and monitor a motor control.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: BAUMULLER NURNBERG GMBH
    Inventors: Sebastian Villwock, Heiko Zatocil