## 抄録

A spherical motor has advantageous features to construct a mechanism with multi-degree of freedom because it can rotate in any direction and the rotation center coincides with its geometrical center. This paper deals with a spherical motor such that permanent magnets are arranged on the surface of its rotor and electromagnets are arranged in the stator. When more than three linear-independent electromagnets are installed in this type of spherical motor, an optimization problem should be solved under some constraint conditions and an objective function. This paper proposes a technique to solve the optimization problem in order to calculate the currents to electromagnets for each relative rotation angle between the rotor and the stator by applying the generalized reduced gradient method. The technique makes possible to use a convex function as the objective function. The applicability of the proposed technique is demonstrated by an example to calculate the currents to electromagnets for a spherical motor that twelve permanent magnets and ten electromagnets are installed.

本文言語 | English |
---|---|

ホスト出版物のタイトル | SPEEDAM 2018 - Proceedings |

ホスト出版物のサブタイトル | International Symposium on Power Electronics, Electrical Drives, Automation and Motion |

出版社 | Institute of Electrical and Electronics Engineers Inc. |

ページ | 1172-1177 |

ページ数 | 6 |

ISBN（印刷版） | 9781538649411 |

DOI | |

出版ステータス | Published - 8月 23 2018 |

イベント | 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2018 - Amalfi 継続期間: 6月 20 2018 → 6月 22 2018 |

### Other

Other | 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2018 |
---|---|

国/地域 | Italy |

City | Amalfi |

Period | 6/20/18 → 6/22/18 |

## ASJC Scopus subject areas

- エネルギー工学および電力技術
- 電子工学および電気工学
- 機械工学
- 制御と最適化