Contributions to an ultra-high temperature (250°C/500°F) bearingless pump

Wellerdieck, Tobias; Peralta, Patricio; Nußbaumer, Thomas; Kolar, Johann W.

doi:10.1109/icems.2015.7385214

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…Figure 5 shows the result of the intermittent duty cycle modeling which has a maximum allowable duty cycle of 14.08 %, while not exceeding the specified temperature limit of the rotor. In this example the limit is set to 250 • C, which is considered to be one of the highest possible operating temperatures for a PMSM rotor [15].…”

Section: Thermal Evaluation Of the Resulting Systemmentioning

confidence: 99%

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

Соколов

Jastrzębski

Saarakkala

et al. 2016

2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)

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This paper presents a novel analytical method for electro-mechanical design of a high speed long-term flywheel energy storage system and thermal evaluation of possible operating modes of the system. Flywheel's composite shell rotor along with the motor/generator unit are assumed to be placed into a sealed vacuum chamber, which presents a challenge of heat transfer, produced by rotor losses. Developed method takes into account thermal radiation properties of the rotor and is realised using Mathcad software, which allows for quick investigation of any flywheel configuration. The method involves calculations for preliminary rotor sizing and determining achievable operation modes, while keeping the rotor under a specified temperature limit. Results of using this method for studying dependencies of thermal performance on initial system parameters are presented and conclusions are drawn. Based on the conducted study, recommendations on system design considerations are given.

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Section: Thermal Evaluation Of the Resulting Systemmentioning

confidence: 99%

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

Соколов

Jastrzębski

Saarakkala

et al. 2016

2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)

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“…DUE to the advantages of contactless bearing, no mechanical wear, no lubricating oil, no sealing, etc., bearingless permanent-magnet slice motor (BPMSM) has been successfully employed in semiconductor, pharmaceutical, and medical industry in the form of bearingless pumps. 1–5 A typical structure of BPMSM with a centrifugal pump head is shown in Figure 1(a). The permanent magnet rotor is enclosed in the impeller which can be suspended inside the sealed pump casing through BPMSM.…”

Section: Introductionmentioning

confidence: 99%

Active disturbance rejection control for bearingless permanent-magnet slice motor based on nonlinear phase-locked loop observer

Zhang

Ruan

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this paper, an active disturbance rejection control (ADRC) controller based on a novel nonlinear phase-locked loop observer (NPLLO) is proposed to improve the disturbance rejection property and suspension performance of bearingless permanent-magnet slice motor (BPMSM) for bearingless pumps. First, based on the mathematical model of BPMSM for bearingless pumps, the novel NPLLO, a structure derived from the nonlinear phase-locked loop (PLL) and combining a special nonlinear function, is designed to estimate the uncertainties and load/radial disturbance in real time. Second, NPLLO-based ADRC (NP-ADRC) controllers are designed for rotation and suspension, respectively. Third, the parameter tuning of NP-ADRC is analyzed. Finally, NP-ADRC is analyzed with simulation in MATLAB/Simulink and verified on a BPMSM test bench. Both simulation and experimental results verified the effectiveness of the proposed method.

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“…with the resistance of the machine winding R S and the stator inductance L S , (Wellerdieck, Peralta, et al 2015). The rotor angle estimate is calculated by…”

Section: High Speed Angle Observermentioning

confidence: 99%

Experimental verification of an angle-sensorless control scheme for bearingless permanent magnet machines

Wellerdieck

Nußbaumer

Kolar

2017

Mechanical Engineering Journal

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Contributions to an ultra-high temperature (250°C/500°F) bearingless pump

Cited by 5 publications

References 11 publications

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

Active disturbance rejection control for bearingless permanent-magnet slice motor based on nonlinear phase-locked loop observer

Experimental verification of an angle-sensorless control scheme for bearingless permanent magnet machines

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