The Experts below are selected from a list of 70392 Experts worldwide ranked by ideXlab platform

Jinchuan Zheng - One of the best experts on this subject based on the ideXlab platform.

  • a reset state estimator using an accelerometer for enhanced motion control with sensor quantization
    2010
    Co-Authors: Jinchuan Zheng, Minyue Fu
    Abstract:

    Sensor quantization is a key factor that deteriorates the Tracking performance of Positioning systems with low-resolution optical encoders. This paper presents a method to improve the performance of such systems by merging an accelerometer of low cost. First, to reject the external disturbance, friction force and system perturbations, we design a disturbance observer (DOB) based on acceleration signals. Second, a reset kinematic state estimator (RKSE) is designed using acceleration signals to make the state estimate immune to both system perturbations and input disturbances. Third, a state feedback controller is designed based on the internal model principle (IMP) for accurate sinusoidal reference Tracking. Simulations and experimental results are used to demonstrate the effectiveness of the proposed control method for Tracking Position reference commands and its robustness to system uncertainties.

  • A Reset State Estimator Using an Accelerometer for Enhanced Motion Control With Sensor Quantization
    2010
    Co-Authors: Jinchuan Zheng
    Abstract:

    Sensor quantization is a key factor that deteriorates the Tracking performance of Positioning systems with low-resolution optical encoders. This paper presents a method to improve the performance of such systems by merging an accelerometer of low cost. First, to reject the external disturbance, friction force and system perturbations, we design a disturbance observer (DOB) based on acceleration signals. Second, a reset kinematic state estimator (RKSE) is designed using acceleration signals to make the state estimate immune to both system perturbations and input disturbances. Third, a state feedback controller is designed based on the internal model principle (IMP) for accurate sinusoidal reference Tracking. Simulations and experimental results are used to demonstrate the effectiveness of the proposed control method for Tracking Position reference commands and its robustness to system uncertainties.

Thomas M Jahns - One of the best experts on this subject based on the ideXlab platform.

  • surface permanent magnet synchronous machine design for saliency Tracking self sensing Position estimation at zero and low speeds
    2011
    Co-Authors: Shihchin Yang, Robert D Lorenz, Takahiro Suzuki, Thomas M Jahns
    Abstract:

    Elimination of externally mounted Position sensors and their associated cables is a goal for drive manufacturers. This paper addresses design methods of surface-permanent-magnet (SPM) synchronous machines for saliency-Tracking self-sensing (Position sensorless) Position estimation. Machine spatial saliency is created by stator magnetic saturation due to the rotor zigzag leakage flux from SPMs. Using the machine saliency created by zigzag leakage flux can allow an SPM machine to be suitable for saliency-Tracking Position estimation without the need of any special rotor design modification. In addition, another major benefit is achieved, i.e., a saliency role reversal whereby Ld >; Lq. This has the advantage of reducing machine cross-saturation and increasing the feasible region for closed-loop self-sensing control. All the design procedures are verified by the finite-element analysis, and a 50-W SPM machine is used for experimental evaluation.

  • surface permanent magnet synchronous machine design for saliency Tracking self sensing Position estimation at zero and low speeds
    2010
    Co-Authors: Shihchin Yang, Robert D Lorenz, Takahiro Suzuki, Thomas M Jahns
    Abstract:

    Elimination of externally mounted Position sensors and their associated cables is a goal for virtually all drive manufacturers. This paper addresses design methods of surface permanent magnet (SPM) synchronous machines for saliency-Tracking self-sensing (Position sensorless) Position estimation. Machine saliency is created by stator magnetic saturation due to the rotor zigzag leakage flux from surface permanent magnets. Using the machine saliency created by zigzag leakage flux can allow a SPM machine to be suitable for saliency-Tracking Position estimation without the need of any further special rotor design modification. In addition, another major benefit is achieved, i.e. a saliency role reversal whereby L d >L q . This has the advantage of reducing machine cross-saturation and increasing the feasible region for accurate Position estimation. All the design procedures are verified by the finite element analysis (FEA), and a 50W SPM machine prototype is used for performance validation.

Minyue Fu - One of the best experts on this subject based on the ideXlab platform.

  • a reset state estimator using an accelerometer for enhanced motion control with sensor quantization
    2010
    Co-Authors: Jinchuan Zheng, Minyue Fu
    Abstract:

    Sensor quantization is a key factor that deteriorates the Tracking performance of Positioning systems with low-resolution optical encoders. This paper presents a method to improve the performance of such systems by merging an accelerometer of low cost. First, to reject the external disturbance, friction force and system perturbations, we design a disturbance observer (DOB) based on acceleration signals. Second, a reset kinematic state estimator (RKSE) is designed using acceleration signals to make the state estimate immune to both system perturbations and input disturbances. Third, a state feedback controller is designed based on the internal model principle (IMP) for accurate sinusoidal reference Tracking. Simulations and experimental results are used to demonstrate the effectiveness of the proposed control method for Tracking Position reference commands and its robustness to system uncertainties.

Shihchin Yang - One of the best experts on this subject based on the ideXlab platform.

  • surface permanent magnet synchronous machine design for saliency Tracking self sensing Position estimation at zero and low speeds
    2011
    Co-Authors: Shihchin Yang, Robert D Lorenz, Takahiro Suzuki, Thomas M Jahns
    Abstract:

    Elimination of externally mounted Position sensors and their associated cables is a goal for drive manufacturers. This paper addresses design methods of surface-permanent-magnet (SPM) synchronous machines for saliency-Tracking self-sensing (Position sensorless) Position estimation. Machine spatial saliency is created by stator magnetic saturation due to the rotor zigzag leakage flux from SPMs. Using the machine saliency created by zigzag leakage flux can allow an SPM machine to be suitable for saliency-Tracking Position estimation without the need of any special rotor design modification. In addition, another major benefit is achieved, i.e., a saliency role reversal whereby Ld >; Lq. This has the advantage of reducing machine cross-saturation and increasing the feasible region for closed-loop self-sensing control. All the design procedures are verified by the finite-element analysis, and a 50-W SPM machine is used for experimental evaluation.

  • surface permanent magnet synchronous machine design for saliency Tracking self sensing Position estimation at zero and low speeds
    2010
    Co-Authors: Shihchin Yang, Robert D Lorenz, Takahiro Suzuki, Thomas M Jahns
    Abstract:

    Elimination of externally mounted Position sensors and their associated cables is a goal for virtually all drive manufacturers. This paper addresses design methods of surface permanent magnet (SPM) synchronous machines for saliency-Tracking self-sensing (Position sensorless) Position estimation. Machine saliency is created by stator magnetic saturation due to the rotor zigzag leakage flux from surface permanent magnets. Using the machine saliency created by zigzag leakage flux can allow a SPM machine to be suitable for saliency-Tracking Position estimation without the need of any further special rotor design modification. In addition, another major benefit is achieved, i.e. a saliency role reversal whereby L d >L q . This has the advantage of reducing machine cross-saturation and increasing the feasible region for accurate Position estimation. All the design procedures are verified by the finite element analysis (FEA), and a 50W SPM machine prototype is used for performance validation.

Robert D Lorenz - One of the best experts on this subject based on the ideXlab platform.

  • surface permanent magnet synchronous machine design for saliency Tracking self sensing Position estimation at zero and low speeds
    2011
    Co-Authors: Shihchin Yang, Robert D Lorenz, Takahiro Suzuki, Thomas M Jahns
    Abstract:

    Elimination of externally mounted Position sensors and their associated cables is a goal for drive manufacturers. This paper addresses design methods of surface-permanent-magnet (SPM) synchronous machines for saliency-Tracking self-sensing (Position sensorless) Position estimation. Machine spatial saliency is created by stator magnetic saturation due to the rotor zigzag leakage flux from SPMs. Using the machine saliency created by zigzag leakage flux can allow an SPM machine to be suitable for saliency-Tracking Position estimation without the need of any special rotor design modification. In addition, another major benefit is achieved, i.e., a saliency role reversal whereby Ld >; Lq. This has the advantage of reducing machine cross-saturation and increasing the feasible region for closed-loop self-sensing control. All the design procedures are verified by the finite-element analysis, and a 50-W SPM machine is used for experimental evaluation.

  • surface permanent magnet synchronous machine design for saliency Tracking self sensing Position estimation at zero and low speeds
    2010
    Co-Authors: Shihchin Yang, Robert D Lorenz, Takahiro Suzuki, Thomas M Jahns
    Abstract:

    Elimination of externally mounted Position sensors and their associated cables is a goal for virtually all drive manufacturers. This paper addresses design methods of surface permanent magnet (SPM) synchronous machines for saliency-Tracking self-sensing (Position sensorless) Position estimation. Machine saliency is created by stator magnetic saturation due to the rotor zigzag leakage flux from surface permanent magnets. Using the machine saliency created by zigzag leakage flux can allow a SPM machine to be suitable for saliency-Tracking Position estimation without the need of any further special rotor design modification. In addition, another major benefit is achieved, i.e. a saliency role reversal whereby L d >L q . This has the advantage of reducing machine cross-saturation and increasing the feasible region for accurate Position estimation. All the design procedures are verified by the finite element analysis (FEA), and a 50W SPM machine prototype is used for performance validation.

  • the spatial effect and compensation of current sensor gain deviation for three phase three wire systems
    2007
    Co-Authors: Michael C Harke, Robert D Lorenz
    Abstract:

    Current sensor errors affect torque control and saliency-Tracking Position estimation of ac machines. A spatial model of current sensor gain deviation is developed and used to determine its affect on a general current measurement, verified with experimental data. Three current sensors enable a three-phase three-wire system to compensate for current sensor gain deviation independent of additional machine saliencies. Simulation and experimental results confirm the current sensor gain deviation compensation algorithm.