Optimal Design of the Bearingless Induction Motor for Industrial Applications

Jiahao Chen; Eric L. Severson

doi:10.1109/ECCE.2019.8912543

Optimal Design of the Bearingless Induction Motor for Industrial Applications

Jiahao Chen, Eric L. Severson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Scopus citations

Abstract

This paper presents a framework for the optimal design of the bearingless induction motor intended for industrial compressor applications. A pole-specific rotor winding and a combined stator winding are used to improve the machine performance. An initial design is constructed by following a standard design procedure for AC machines. Design considerations and motor performance evaluation that are unique to the bearingless induction motor are discussed. The 50 kW,30, 000 r/min bearingless induction motor is optimized using multi-objective evolutionary algorithm based on decomposition (MOEA/D). The Pareto front is shown in terms of torque density, efficiency, and ripple performance. Three optimal designs are selected according to different criteria. The improvement margin and tolerance of an optimal design is further investigated through a local sensitivity analysis. Typical optimized designs are found to have an efficiency of around 95.4% using 29-gauge M-19 steel and require less than 1% of the slot space for suspension current to levitate the rotor shaft.

Original language	English (US)
Title of host publication	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	5265-5272
Number of pages	8
ISBN (Electronic)	9781728103952
DOIs	https://doi.org/10.1109/ECCE.2019.8912543
State	Published - Sep 2019
Externally published	Yes
Event	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States Duration: Sep 29 2019 → Oct 3 2019

Publication series

Name	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Country/Territory	United States
City	Baltimore
Period	9/29/19 → 10/3/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Keywords

High speed motor
Multi-objective optimization
No voltage combined winding
Pole-specific winding.
Sensitivity

Publisher link

10.1109/ECCE.2019.8912543

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Chen, J., & Severson, E. L. (2019). Optimal Design of the Bearingless Induction Motor for Industrial Applications. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 (pp. 5265-5272). Article 8912543 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2019.8912543

Optimal Design of the Bearingless Induction Motor for Industrial Applications. / Chen, Jiahao; Severson, Eric L.
2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 5265-5272 8912543 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chen, J & Severson, EL 2019, Optimal Design of the Bearingless Induction Motor for Industrial Applications. in 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019., 8912543, 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019, Institute of Electrical and Electronics Engineers Inc., pp. 5265-5272, 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019, Baltimore, United States, 9/29/19. https://doi.org/10.1109/ECCE.2019.8912543

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abstract = "This paper presents a framework for the optimal design of the bearingless induction motor intended for industrial compressor applications. A pole-specific rotor winding and a combined stator winding are used to improve the machine performance. An initial design is constructed by following a standard design procedure for AC machines. Design considerations and motor performance evaluation that are unique to the bearingless induction motor are discussed. The 50 kW,30, 000 r/min bearingless induction motor is optimized using multi-objective evolutionary algorithm based on decomposition (MOEA/D). The Pareto front is shown in terms of torque density, efficiency, and ripple performance. Three optimal designs are selected according to different criteria. The improvement margin and tolerance of an optimal design is further investigated through a local sensitivity analysis. Typical optimized designs are found to have an efficiency of around 95.4% using 29-gauge M-19 steel and require less than 1% of the slot space for suspension current to levitate the rotor shaft.",

keywords = "High speed motor, Multi-objective optimization, No voltage combined winding, Pole-specific winding., Sensitivity",

author = "Jiahao Chen and Severson, {Eric L.}",

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AB - This paper presents a framework for the optimal design of the bearingless induction motor intended for industrial compressor applications. A pole-specific rotor winding and a combined stator winding are used to improve the machine performance. An initial design is constructed by following a standard design procedure for AC machines. Design considerations and motor performance evaluation that are unique to the bearingless induction motor are discussed. The 50 kW,30, 000 r/min bearingless induction motor is optimized using multi-objective evolutionary algorithm based on decomposition (MOEA/D). The Pareto front is shown in terms of torque density, efficiency, and ripple performance. Three optimal designs are selected according to different criteria. The improvement margin and tolerance of an optimal design is further investigated through a local sensitivity analysis. Typical optimized designs are found to have an efficiency of around 95.4% using 29-gauge M-19 steel and require less than 1% of the slot space for suspension current to levitate the rotor shaft.

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Optimal Design of the Bearingless Induction Motor for Industrial Applications

Abstract

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Keywords

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