The present invention provides a method and device for controlling the n LLM coils (L1, . . . Ln) of an LLM stator making it possible to change the polarity of the coil voltage (UL1, . . . , ULn) of the n LLM coils (L1, . . . Ln) more easily and with little circuit complexity. It is proposed to apply a first operating potential (Ub1) to n first input terminals (A1, . . . , An) of n half bridges (HB1, . . . , HBn), and apply a second operating potential (Ub2) to n second input terminals (B1, . . . , Bn) of the n half bridges. For each half bridge (HB1, . . . HBn), a first switch (S11, . . . , S1n) is connected between a center point (C1, . . . , Cn) of the respective half bridge (HB1, . . . , HBn) and the first input terminal (A1, . . . , An), and a second switch (S21, . . . , S2n) is connected between the center point (C1, . . . , Cn) of the relevant half bridge (HB1, . . . , HBn) and the second input terminal (B1, . . . , Bn). The center point (C1, . . . , Cn) of the n half bridges is connected in each case to n first terminals (L11, . . . , L1n) of the n LLM coils (L1, . . . , Ln), and the second terminals (L11, . . . , L1n) of the n LLM coils (L1, . . . , Ln) are connected in a control point (C) that is regulated to a predetermined potential (Ux).

The present invention provides a method and device for controlling the n LLM coils (L1, . . . Ln) of an LLM stator making it possible to change the polarity of the coil voltage (UL1, . . . , ULn) of the n LLM coils (L1, . . . Ln) more easily and with little circuit complexity. It is proposed to apply a first operating potential (Ub1) to n first input terminals (A1, . . . , An) of n half bridges (HB1, . . . , HBn), and apply a second operating potential (Ub2) to n second input terminals (B1, . . . , Bn) of the n half bridges. For each half bridge (HB1, . . . HBn), a first switch (S11, . . . , S1n) is connected between a center point (C1, . . . , Cn) of the respective half bridge (HB1, . . . , HBn) and the first input terminal (A1, . . . , An), and a second switch (S21, . . . , S2n) is connected between the center point (C1, . . . , Cn) of the relevant half bridge (HB1, . . . , HBn) and the second input terminal (B1, . . . , Bn). The center point (C1, . . . , Cn) of the n half bridges is connected in each case to n first terminals (L11, . . . , L1n) of the n LLM coils (L1, . . . , Ln), and the second terminals (L11, . . . , L1n) of the n LLM coils (L1, . . . , Ln) are connected in a control point (C) that is regulated to a predetermined potential (Ux).

A stator segment for a linear motor-based transport system is developed to the effect that a transmitter for cyclic transmission of a control data record in a first clock cycle also transmits, in addition to transmitting the control data record, a position value in a clock-synchronized manner, wherein a plurality of positions are available as a sequence with a quantity of elements and an element with an index corresponds to a position, where the transmitter unit is configured such that, upon every first clock cycle, the index is incremented commencing from a starting value and an element is transmitted after the control data record, where the transmitter unit is furthermore configured to transmit all elements in one transmission interval, and where the transmission interval corresponds to a multiple of the first clock cycle.

A transport apparatus includes an electric motor having a mover and coils, and a control device that controls the electric motor and includes a measuring unit and a control unit. The coils drives the mover by applying a current to each of the coils. The measuring unit measures an impedance of each coil. The control unit controls the current flowing through each of the coils based on a third current command value in which a first current command value, indicating a current corresponding to a thrust command value indicating a thrust applied to the mover, and a second current command value, indicating a current for measuring the impedance, are superimposed. The control unit determines the second current command value such that the mover does not receive a thrust due to a component corresponding to the second current command value in the current flowing through each coil when measuring the impedance.

A system for storing electrical energy generated by an external energy source that includes a ring for storing kinetic energy of rotation, an assembly a control system, and at least two motors/generators. The assembly includes a plurality of independent supports, each releasably attachable to a levitation electromagnet such that pole faces of the levitation electromagnet oppose a top protruding surface of a levitation rail of the ring and each releasably attachable to a centering electromagnet such that pole faces of the centering electromagnet oppose a surface of the centering rail of the ring. The control system supplies current to each levitation electromagnet to generate vertical forces to levitate and vertically stabilize the ring and to each centering electromagnet to generate radial forces to center and horizontally stabilize the ring. At least two of motor/generators electromagnetically engage a reaction rail of the ring and impose a reversible torque on the ring to enable bi-directional transfer of electrical energy from the energy source to the ring in the form of kinetic energy of rotation of the ring, and subsequent recovery of electrical energy from the kinetic energy of rotation of the ring.

A system for storing electrical energy generated by an external energy source that includes a ring for storing kinetic energy of rotation, an assembly a control system, and at least two motors/generators. The assembly includes a plurality of independent supports, each releasably attachable to a levitation electromagnet such that pole faces of the levitation electromagnet oppose a top protruding surface of a levitation rail of the ring and each releasably attachable to a centering electromagnet such that pole faces of the centering electromagnet oppose a surface of the centering rail of the ring. The control system supplies current to each levitation electromagnet to generate vertical forces to levitate and vertically stabilize the ring and to each centering electromagnet to generate radial forces to center and horizontally stabilize the ring. At least two of motor/generators electromagnetically engage a reaction rail of the ring and impose a reversible torque on the ring to enable bi-directional transfer of electrical energy from the energy source to the ring in the form of kinetic energy of rotation of the ring, and subsequent recovery of electrical energy from the kinetic energy of rotation of the ring.

The invention relates to a linear motor system, in particular a transport system, e.g. a multi-carrier, having a plurality of or for a plurality of carriers, and having a guide track for the carriers, wherein, at the guide track, a first magnetic sensor for determining a magnetic field with respect to a first spatial direction and for outputting a first sensor signal and a second magnetic sensor for determining a magnetic field with respect to a second spatial direction and for outputting a second sensor signal are provided, wherein the control device is configured to determine position information relating to a carrier on the basis of the first sensor signal and to determine identification information relating to a carrier on the basis of the second sensor signal.

The invention relates to a linear motor system, in particular a transport system, e.g. a multi-carrier, having a plurality of or for a plurality of carriers, and having a guide track for the carriers, wherein, at the guide track, a first magnetic sensor for determining a magnetic field with respect to a first spatial direction and for outputting a first sensor signal and a second magnetic sensor for determining a magnetic field with respect to a second spatial direction and for outputting a second sensor signal are provided, wherein the control device is configured to determine position information relating to a carrier on the basis of the first sensor signal and to determine identification information relating to a carrier on the basis of the second sensor signal.

In order to improve control of a long-stator linear motor, a first measured value is ascertained in a first measurement section and a second measured value is ascertained in a second measurement section, in each case along a transport path in a movement direction. The first measurement section overlaps, in the movement direction, the second measurement section in an overlap region, and the first measured value and the second measured value represent the same actual value of a physical quantity. An operating parameter of the long-stator linear motor determined based on a deviation occurring between the first measured value and the second measured value.

In order to improve control of a long-stator linear motor, a first measured value is ascertained in a first measurement section and a second measured value is ascertained in a second measurement section, in each case along a transport path in a movement direction. The first measurement section overlaps, in the movement direction, the second measurement section in an overlap region, and the first measured value and the second measured value represent the same actual value of a physical quantity. An operating parameter of the long-stator linear motor determined based on a deviation occurring between the first measured value and the second measured value.