ROTARY ELECTRIC MACHINE

• Main Authors: NAKAI HIDEO, NISHIJIMA YAMATO, NAMBA MASAFUMI, HIRAMOTO KENJI, HATTORI HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 24.08.2023
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

To provide a rotary electric machine in which field weakening is suppressed and field weakening current, that is, motor current is suppressed.SOLUTION: A rotary electric machine system 100 includes a stator 12 in which a three-phase coil with a pole pair number p is arranged and that has slots with a slot number Z1, and a first rotor 16 and a second rotor 18 that are rotatable relative to the stator 12 and are arranged separately from each other, and the first rotor 16 and the second rotor 18 each have magnetic poles with a number of pole pairs Z2 and a number of pole pairs Z3, and the number of pole pairs p, the number of slots Z1, the number of pole pairs Z2, and the number of pole pairs Z3 satisfy conditions of Z2=Z1±Z3, and Z3=p, and can change the relative phase angle between the first rotor 16 and the second rotor 18, and by controlling the relative phase angle and a stator current flowing through the stator 12, field weakening control of the back electromotive force is performed by combining the back electromotive force due to the magnetic poles with the number of pole pairs Z2 and the back electromotive force due to the magnetic poles with the number of pole pairs Z3.SELECTED DRAWING: Figure 1 【課題】弱め界磁を抑制し、弱め界磁電流すなわちモータ電流が抑制した回転電機を提供する。【解決手段】極対数ｐの３相コイルが配置され、スロット数Ｚ１のスロットを有するステータ１２と、ステータ１２に対して相対的に回転可能であり、互いに分離して配置された第１ロータ１６及び第２ロータ１８と、を備え、第１ロータ１６及び第２ロータ１８は、極対数Ｚ２の磁極及び極対数Ｚ３の磁極をそれぞれ有し、極対数ｐ、スロット数Ｚ１、極対数Ｚ２及び極対数Ｚ３は、Ｚ２＝Ｚ１±Ｚ３、Ｚ３＝ｐの条件を満たし、第１ロータ１６と第２ロータ１８との相対位相角を変化させることが可能であり、相対位相角及びステータ１２に流すステータ電流を制御することによって極対数Ｚ２の磁極による逆起電力と極対数Ｚ３の磁極による逆起電力を組み合わせて逆起電力の弱め界磁制御を行う回転電機システム１００とする。【選択図】図１