The Experts below are selected from a list of 16329 Experts worldwide ranked by ideXlab platform

Dong-seok Hyun - One of the best experts on this subject based on the ideXlab platform.

  • Programmable LPF-based Stator Flux estimator for sensorless induction motor control
    2012 IEEE Vehicle Power and Propulsion Conference, 2012
    Co-Authors: Sangsoo Lee, Jae-hoon Kim, Dong-seok Hyun
    Abstract:

    In this paper, the improved Stator Flux estimator is proposed to ensure a programmable low pass filter (PLPF) to act as a pure integrator for sensorless control of induction motor. The estimated synchronous angular speed is used as a pole of a PLPF whose gain and phase compensator is determined on the assumption of the estimated synchronous angular speed being coincident with the actual one. However, if the synchronous angular speed is not exactly estimated, the gain and phase compensation will not be appropriate. To overcome the mentioned problem, this paper analyzes the relation between the synchronous speed error and the phase lag error of the Stator Flux. Based on the analysis, the synchronous speed error compensation scheme is proposed. For a sensorless start-up, this paper utilizes the current model as a Flux estimator at the standstill. When the current model is switched to the voltage model, large fluctuations in the Stator Flux and the motor speed can be caused. Therefore, the simple method for a smooth transition between two models is proposed. Validity of the proposed schemes is verified through both simulation results and experimental results.

  • Stator-Flux-oriented control of induction motor considering iron loss
    IEEE Transactions on Industrial Electronics, 2001
    Co-Authors: Sung-don Wee, Myoung-ho Shin, Dong-seok Hyun
    Abstract:

    Research to consider the influences of iron loss has been made in the vector control of an induction motor. However, little work has been done in the area of a Stator-Flux-oriented control system of an induction motor. This paper investigates the effects of iron loss in the direct Stator-Flux-oriented control system of an induction motor, and proposes a control algorithm considering iron loss. The iron loss is modeled by equivalent iron loss resistance in parallel to the magnetizing inductance. Torque control capability is much improved and the speed estimation error for a speed-sensorless drive is reduced by the proposed control algorithm. The effectiveness of the proposed method is verified by simulation and experimental results.

  • an improved Stator Flux estimation for speed sensorless Stator Flux orientation control of induction motors
    Power Electronics Specialists Conference, 1998
    Co-Authors: Myoung-ho Shin, Dong-seok Hyun, Songyul Choe
    Abstract:

    This paper proposes a programmable low pass filter (LPF) to estimate Stator Flux for speed sensorless Stator Flux orientation control of induction motors. The programmable LPF is developed to solve the DC drift problem associated with a pure integrator and an analog LPF with fixed pole. The pole of the programmable LPF is located far from the origin in order to decrease the time constant as speed increases. The programmable LPF has the phase and the magnitude compensator to exactly estimate Stator Flux in a wide speed range. So, the drift problem is much improved and the Stator Flux is exactly estimated in the wide speed range. The validity of the proposed programmable LPF is verified by speed sensorless vector control of a 2.2 kW three-phase induction motor.

Shen Jie - One of the best experts on this subject based on the ideXlab platform.

  • Nonlinear Magnetic Circuit Model and Stator Flux Oriented Slip Control Systems of Induction Motors
    IEEE Transactions on Power Electronics, 2002
    Co-Authors: Shen Jie
    Abstract:

    The influence of nonlinear magnetic circuit on Stator Flux is analyzed in this paper, and Stator Flux oriented control is employed to minimize the direct dependence of control system on motor parameters. Furthermore, the paper presents a Stator Flux oriented slip control scheme based on the dynamic motor model. The performance of the system can be improved effectively by controlling the differential of the Stator Flux amplitude and the torque component of Stator current via d axis voltage and slip respectively.

Myoung-ho Shin - One of the best experts on this subject based on the ideXlab platform.

  • Stator-Flux-oriented control of induction motor considering iron loss
    IEEE Transactions on Industrial Electronics, 2001
    Co-Authors: Sung-don Wee, Myoung-ho Shin, Dong-seok Hyun
    Abstract:

    Research to consider the influences of iron loss has been made in the vector control of an induction motor. However, little work has been done in the area of a Stator-Flux-oriented control system of an induction motor. This paper investigates the effects of iron loss in the direct Stator-Flux-oriented control system of an induction motor, and proposes a control algorithm considering iron loss. The iron loss is modeled by equivalent iron loss resistance in parallel to the magnetizing inductance. Torque control capability is much improved and the speed estimation error for a speed-sensorless drive is reduced by the proposed control algorithm. The effectiveness of the proposed method is verified by simulation and experimental results.

  • an improved Stator Flux estimation for speed sensorless Stator Flux orientation control of induction motors
    Power Electronics Specialists Conference, 1998
    Co-Authors: Myoung-ho Shin, Dong-seok Hyun, Songyul Choe
    Abstract:

    This paper proposes a programmable low pass filter (LPF) to estimate Stator Flux for speed sensorless Stator Flux orientation control of induction motors. The programmable LPF is developed to solve the DC drift problem associated with a pure integrator and an analog LPF with fixed pole. The pole of the programmable LPF is located far from the origin in order to decrease the time constant as speed increases. The programmable LPF has the phase and the magnitude compensator to exactly estimate Stator Flux in a wide speed range. So, the drift problem is much improved and the Stator Flux is exactly estimated in the wide speed range. The validity of the proposed programmable LPF is verified by speed sensorless vector control of a 2.2 kW three-phase induction motor.

Gianmario Pellegrino - One of the best experts on this subject based on the ideXlab platform.

  • Stator-Flux-Oriented Control of Synchronous Motors: A Systematic Design Procedure
    IEEE Transactions on Industry Applications, 2019
    Co-Authors: Hafiz Asad Ali Awan, Marko Hinkkanen, Radu Bojoi, Gianmario Pellegrino
    Abstract:

    This paper deals with Stator-Flux-oriented control of permanent-magnet (PM) synchronous motors and synchronous reluctance motors (SyRMs). The variables to be controlled are the Stator-Flux magnitude and the torque-producing current component, whose references are easy to calculate. However, the dynamics of these variables are nonlinear and coupled, potentially compromising the control performance. We propose an exact input–output feedback linearization structure and a systematic design procedure for the Stator-Flux-oriented control method in order to improve the control performance. The proposed controller is evaluated by means of experiments using a 6.7-kW SyRM drive and a 2.2-kW interior PM synchronous motor drive.

  • Stator-Flux-Oriented Control of Synchronous Motors: Design and Implementation
    2018 IEEE Energy Conversion Congress and Exposition (ECCE), 2018
    Co-Authors: Hafiz Asad Ali Awan, Marko Hinkkanen, Radu Bojoi, Gianmario Pellegrino
    Abstract:

    This paper deals with a Stator-Flux-oriented control method for permanent-magnet (PM) synchronous motors and synchronous reluctance motors (SyRMs). The Stator-Flux magnitude and the torque-producing current component are the controlled variables. This choice simplifies the references calculation (as compared to the current control in rotor coordinates), but the dynamics seen by the inner control loops become nonlinear and coupled, potentially compromising the control performance. We propose an exact input-output feedback linearization structure and a systematic design procedure for the Stator-Flux-oriented control method. Simulation and experimental results are presented to verify the dynamic performance of the designed controller using a 6.7-kW SyRM drive.

Liao Yong-heng - One of the best experts on this subject based on the ideXlab platform.

  • Research on Control Method of Asynchronous Motor Based on the Stator Flux-oriented
    IEEE Transactions on Power Electronics, 2011
    Co-Authors: Liao Yong-heng
    Abstract:

    This paper discusses the asynchronous motor control strategy of the Stator Flux-oriented based on direct measurement of d current.A fundamental principle of vector control based on the Stator Flux-oriented is introduced.On the basis of this,the formula of calculating d current directly is derived and the math model of control system is built.Some Stator Flux observers is analyzed and the scheme based on hybrid-Flux observation is shown.Finally,validity and feasibility of control method of asynchronous motor based on the Stator Flux oriented are verified by Matlab/Simulink software simulation and low-power experimental platform experiment.