### Abstract

Original language | English |
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Title of host publication | Proceedings of ISMB15 |

Number of pages | 8 |

Publication status | Published - 2016 |

MoE publication type | Not Eligible |

Event | 15th International Symposium on Magnetic Bearings, ISMB15 - Kitakyushu, Japan Duration: 3 Aug 2016 → 6 Aug 2016 |

### Conference

Conference | 15th International Symposium on Magnetic Bearings, ISMB15 |
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Abbreviated title | ISMB15 |

Country | Japan |

City | Kitakyushu |

Period | 3/08/16 → 6/08/16 |

### Fingerprint

### Keywords

- switched reluctance machines
- self-bearing machines
- modelling
- control
- finite element method

### Cite this

*Proceedings of ISMB15*

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*Proceedings of ISMB15.*15th International Symposium on Magnetic Bearings, ISMB15, Kitakyushu, Japan, 3/08/16.

**A Self-Bearing 8/6 Switched Reluctance Motor.** / Manninen, Aino; Mukherjee, Victor; Pippuri, Jenni; Tammi, Kari.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

TY - GEN

T1 - A Self-Bearing 8/6 Switched Reluctance Motor

AU - Manninen, Aino

AU - Mukherjee, Victor

AU - Pippuri, Jenni

AU - Tammi, Kari

N1 - Project code: 101021 Registration required

PY - 2016

Y1 - 2016

N2 - This paper describes a self-bearing 8/6 switched reluctance motor (SRM). The main challenge with such a motor is how to control both torque and radial forces. This task is particularly challenging because the double saliency of the machine type causes the characteristics of the motor to be highly nonlinear. In this paper, we first present a switching logic for the 8 stator coils. The current in the 8 phases is defined by using three current components and the rotor angle. After that, we propose a model that could be used in the closed loop control to solve the required stator currents from needed radial forces and torque. The force and torque models are based on first and second order polynomials, which are fitted to data that have been obtained by two-dimensional electromagnetic finite element analysis. In this paper we compare the performance of the analytical model with the finite element analysis data, and use the analytical model for direct open loop control. The results show that the proposed analytical model can be used to calculate the required stator currents that are needed to operate the self-bearing SRM. The models can be combined with closed loop control methods in order to properly control the machine.

AB - This paper describes a self-bearing 8/6 switched reluctance motor (SRM). The main challenge with such a motor is how to control both torque and radial forces. This task is particularly challenging because the double saliency of the machine type causes the characteristics of the motor to be highly nonlinear. In this paper, we first present a switching logic for the 8 stator coils. The current in the 8 phases is defined by using three current components and the rotor angle. After that, we propose a model that could be used in the closed loop control to solve the required stator currents from needed radial forces and torque. The force and torque models are based on first and second order polynomials, which are fitted to data that have been obtained by two-dimensional electromagnetic finite element analysis. In this paper we compare the performance of the analytical model with the finite element analysis data, and use the analytical model for direct open loop control. The results show that the proposed analytical model can be used to calculate the required stator currents that are needed to operate the self-bearing SRM. The models can be combined with closed loop control methods in order to properly control the machine.

KW - switched reluctance machines

KW - self-bearing machines

KW - modelling

KW - control

KW - finite element method

M3 - Conference article in proceedings

BT - Proceedings of ISMB15

ER -