Construction of Rotor/AMB dynamic model applied for TMP using self-tuning Kalman Filter

Liu, Yu Hsun; Tsai, Nan-Chyuan; Chiu, Hsin Lin

doi:10.1016/j.mechatronics.2014.01.002

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…There have been some research works of deploying fuzzy logic systems in filtering problems that mostly are focused in tuning the process or measurement covariance (Jwo and Chung, 2010; Liu et al, 2014; Sasiadek et al, 2000) using some problem dependent fuzzy logic rules bases. In this work, however, two unified fuzzy rule bases is proposed to dynamically infer weights of d s and d m in equations (28)–(30) to obtain appropriate interaction of UKF and U H ∞ F gains, priori states estimates and priori measurement estimates.…”

Section: Fuzzy Logic Systemsmentioning

confidence: 99%

Adaptive fuzzy hybrid unscented/H-infinity filter for state estimation of nonlinear dynamics problems

Tehrani

Nariman-Zadeh

Masoumnezhad

2018

Transactions of the Institute of Measurement and Control

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In this paper, a new hybrid unscented Kalman (UKF) and unscented H ∞ (U H ∞ F) filter is presented that can adaptively adjust its performance better than that of either UKF and/or U H ∞ F , accordingly. In this way, two Takagi-Sugeno-Kang (TSK) fuzzy logic systems are presented to adjust automatically some weights that combine those UK and U H ∞ filters, independent of the dynamics of the problem. Such adaptive fuzzy hybrid unscented Kalman/ H ∞ filter (AFUK H ∞ ) is based on the combination of gain, a priori state estimation, and a priori measurement estimation. The simulation results of an inverted pendulum and a re-entry vehicle tracking problem clearly demonstrate robust and better performance of this new AFUK H ∞ filter in comparison with those of both UKF and U H ∞ F, appropriately. It is shown that, therefore, the new presented AFUK H ∞ filter can simply eliminate the need for either UKF or U H ∞ F effectively in the presence of Gaussian and/or non-Gaussian noises.

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Section: Fuzzy Logic Systemsmentioning

confidence: 99%

Adaptive fuzzy hybrid unscented/H-infinity filter for state estimation of nonlinear dynamics problems

Tehrani

Nariman-Zadeh

Masoumnezhad

2018

Transactions of the Institute of Measurement and Control

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“…Most of the previously published works deals with levitation control adjustment of the active magnetic bearing [7][8], whereas this paper is primarily focused on the control system adjustment of the real permanent magnet based active magnetic bearing with the 3-phase stator winding [9].…”

Section: Introductionmentioning

confidence: 99%

Experimental Verification of the Hybrid Magnetic Bearing Operation

Vitner

Pavelka

Lettl

2018

2018 International Conference on Applied Electronics (AE)

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This paper discusses the proposal, realization, controlling system implementation and function verification of a hybrid magnetic bearing. The hybrid magnetic bearing in comparison with active and passive magnetic bearings exploits both passive and active magnetic fluxes. This type of bearing is not given too much attention in the literature despite of its many advantages. The issue of active and passive magnetic bearings is widely elaborated against the issue of hybrid magnetic bearings. The hybrid magnetic bearing is the special kind of a radial magnetic bearing. This magnetic bearing exploits permanent magnets to produce the basic magnetic flux acting the rotor and 3-phase double layer winding to influence this flux by an active magnetic flux. Basically, the hybrid magnetic bearing was developed for high speed bearing-less devices. According to that, we are expecting the achievement the highest rotor levitation stability in wide range of rotational speed and in various driving modes. The quality of the levitation is evaluated by international standards [ISO 14839]. In this paper, results of experimental verification of the levitation stability are presented.

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“…In recent years, AMBs play a very important role in many industrial applications, including high-speed spindles, 1,2 gas compressors, 3 flywheel energy storage systems, 4 artificial heart pumps 5 and turbo-molecular pumps. 6 The rotor and stator of an AMB are typically laminated to reduce the eddy-current effects, 3,7,8 as Faraday's law shows that eddy currents are induced when the magnetic field changes in conductors. However, since a laminated construction decreases the strength of the structure, a solid-core construction will be a good choice in such application where it contains a thrust bearing [9][10][11] or where the size of the magnetic bearing gets smaller.…”

Section: Introductionmentioning

confidence: 99%

Identification of a solid-core active magnetic bearing in current and voltage drive modes

Zhou

2015

Proceedings of the Institution of Mechanical Engineers, Part C:

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There are two drive modes for an active magnetic bearing (AMB), namely the current and voltage drive modes. The analytical model of an AMB is second-order under current drive and third-order under voltage drive. The current drive is widely used due to its simple model. However, it is not the case in a solid-core AMB since it is subject to strong eddy currents. System identification is adopted in this paper to obtain the accurate model of a solid-core AMB, which shows that a third-order model is required to describe the real system in both current and voltage drive modes. Under the influence of eddy currents, the order of the model is increased in the current drive mode, whereas is not in the voltage drive mode, indicating that the model in the voltage drive mode describes the system dynamics better. All the details of the solid-core AMB, identification method and experimental results are given in this paper. In addition, a new numerical algorithm is proposed to simplify the existing least square method, which needs no iteration, achieves similar accuracy and is not restricted to our application.

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Construction of Rotor/AMB dynamic model applied for TMP using self-tuning Kalman Filter

Cited by 3 publications

References 13 publications

Adaptive fuzzy hybrid unscented/H-infinity filter for state estimation of nonlinear dynamics problems

Adaptive fuzzy hybrid unscented/H-infinity filter for state estimation of nonlinear dynamics problems

Experimental Verification of the Hybrid Magnetic Bearing Operation

Identification of a solid-core active magnetic bearing in current and voltage drive modes

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