Robust Multi-Objective Optimization of a 3-Pole Active Magnetic Bearing Based on Combined Curves With Climbing Algorithm

Jin, Zhijia; Sun, Xiaodong; Chen, Long; Yang, Zebin

doi:10.1109/tie.2021.3088380

Cited by 39 publications

(15 citation statements)

References 39 publications

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“…Among these advancements, magnetic bearing technology has attracted considerable attention as it enables precise and intelligent control of high-speed rotation systems as well as its advantages in terms of energy efficiency, lack of lubrication, high rotational speed capability, and precision control. [1][2][3][4][5][6][7][8] Magnetic bearings can be classified into two main types based on their magnetic flux paths: homopolar and heteropolar. The former maintains the same polarity in all radial directions, whereas the latter exhibits varying polarities.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on heteropolar/homopolar magnetic bearings for high-speed rotating applications

Noh,

Park,

Shin

et al. 2024

AIP Advances

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Bearing technology must be supported to attain high-speed and high-efficiency rotating applications. Previous research focused on performance enhancement and optimization, rather than comparative studies among magnetic bearings. This study presents the design and comparison of five magnetic bearing types for high-speed rotating applications: an 8-pole conventional heteropolar, fork-type heteropolar, hybrid fork-type homopolar, and hybrid homopolar magnetic bearings. For quantitative evaluation, mechanical parameters were selected to ensure a uniform coil volume and current supply. The heteropolar magnetic bearings employed 35PN440 steel, whereas the homopolar magnetic bearings utilized pure solid iron. The bias currents were determined based on the respective material properties. The driving circuits were compared by comparing models with and without permanent magnets. The magnetic flux density was assessed at equilibrium and maximum control current, and the loss characteristics were evaluated at 30 000 rpm. Linear control regions were identified by analyzing the relationships between the electromagnetic force, current, and displacement. As a result, the most suitable magnetic bearing for high-speed rotating applications is proposed.

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Section: Introductionmentioning

confidence: 99%

Comparative study on heteropolar/homopolar magnetic bearings for high-speed rotating applications

Noh,

Park,

Shin

et al. 2024

AIP Advances

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“…In Ref. [9], a combined curve with the Climbing Algorithm was used to find the robust optimal solution, which reduced the sensitivity of the system to parameter changes, thus improving the robustness of the magnetic bearing system. In literature [10], a special extended observer is designed to identify iterative perturbations and compensate the iterative learning controller so as to suppress the perturbations.…”

Section: Introductionmentioning

confidence: 99%

Backstepping control of three‐degree‐of‐freedom hybrid magnetic bearing based on non‐linear disturbance observer

Chengzi,

Yucheng,

Yan

et al. 2023

IET Electric Power Appl

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A backstepping controller based on a non‐linear disturbance observer (NDOB) was created to enhance the dynamic performance and reliability of three‐degree‐of‐freedom hybrid magnetic bearings. After the structure of three‐degree‐of‐freedom hybrid magnetic bearings is introduced, the mathematical model is established, and the equation of the state is derived by the equivalent magnetic circuit technique. Based on the mathematical model, non‐linear disturbance observer (NDOB) is designed and is used to predict the system disturbance, and the backstepping control algorithm is compensated. To verify the effectiveness of the proposed controller, the backstepping controller, proportion integration differentiation controller, and backstepping controller based on a NDOB were compared by simulation and experiment. Results show that the backstepping controller based on a NDOB has better dynamic performance and robustness.

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“…And multi-objective optimisation based on sequential subspace optimisation and the climbing algorithm was proposed, respectively, in refs. [17,18]. A bearingless motor design chain is proposed in ref.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic design of an ultra‐high‐speed bearingless permanent magnet synchronous motor

Xiaoyuan,

Na,

Tianyuan

et al. 2023

IET Electric Power Appl

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Aiming at the problem of high‐speed motors being limited by multiple physical fields, which makes it difficult to achieve ultra‐high‐speed stable operation and develop towards higher speeds and higher power, an ultra‐high‐speed bearingless permanent magnet synchronous motor (UBPMSM) is proposed. Based on the mathematical model of suspension force for the bearingless permanent magnet motor considering the rotor eccentricity and load condition, the electromagnetic design method for UBPMSM is proposed. According to this method, the topology, torque system and suspension force system of a 10 kw 100k r/min UBPMSM are theoretically designed. The finite element method (FEM) is used to analyse the electromagnetic performance, which verifies the correctness of the proposed design method for UBPMSM. Further analysis and selection of winding span combinations are conducted to obtain better torque and suspension performance.

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Robust Multi-Objective Optimization of a 3-Pole Active Magnetic Bearing Based on Combined Curves With Climbing Algorithm

Cited by 39 publications

References 39 publications

Comparative study on heteropolar/homopolar magnetic bearings for high-speed rotating applications

Comparative study on heteropolar/homopolar magnetic bearings for high-speed rotating applications

Backstepping control of three‐degree‐of‐freedom hybrid magnetic bearing based on non‐linear disturbance observer

Electromagnetic design of an ultra‐high‐speed bearingless permanent magnet synchronous motor

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