| 摘要 |
PROBLEM TO BE SOLVED: To achieve a magnet excitation rotary electric machine having a wide rotational speed range by phase control of induction voltage.SOLUTION: Disclosed is a rotary electric machine system, in which a rotor opposed to an armature is constituted of a first rotor 14, a second rotor 15, and a third rotor 16, and two rotors are displaced in the circumferential direction to control an induction voltage. A large induction voltage can be suppressed within a small range of magnetic coupling force between rotors. Though a weak field technology by spark advance control of a driving current is exclusively used at present, it is one kind of combination with current excitation in a low speed and high speed rotation regions, and energy efficiency is remarkably reduced. Thereby, the energy efficiency having high magnetic excitation is maintained in whole rotating speed range.SELECTED DRAWING: Figure 1 |
