公开(公告)号：WO2004079880A2

公开(公告)日：2004-09-16

申请号：PCT/US2004/006316

申请日：2004-03-03

Applicant: NEW GENERATION MOTORS CORPORATION

Inventor： CRAIN, Stephen Gregory ,  JERMAKIAN, Joel Berge

IPC: H02K

CPC classification number: H02P6/16 ,  B60K1/00 ,  H02P6/181 ,  H02P6/34 ,  H02P25/0925 ,  H02P25/098 ,  H02P2209/07

Abstract: This invention relates to a variable speed drive with synchronous AC motor. In the disclosed embodiment, a variable speed drive operates in three modes: a first predetermined mode, in which a function (e.g., trapezoidal current waveform) controls operation at low motor speeds; a transitional mode, in which a transition function is applied to anticipate transitions of the first function, thus causing a smoothing of transitions at higher speeds; and a second predetermined (e.g., sinusoidal or smoothly-varying current) waveform at high speeds. This allows for the reduction in required rotor position sensor resolution as compared to conventional synchronous variable speed drives, resulting in cost savings in the sensor device and associated wiring. Additionally, it is quieter and more efficient operation at high speed as compared to conventional trapezoidal-current/DC-brushless motor drives.

Abstract translation: 本发明涉及具有同步交流电动机的变速驱动器。 在所公开的实施例中，变速驱动器以三种模式操作：第一预定模式，其中功能（例如，梯形电流波形）控制低电机速度下的操作; 过渡模式，其中应用过渡功能来预测第一功能的转换，从而导致以较高速度平滑过渡; 和高速的第二预定（例如，正弦或平滑变化的电流）波形。 与传统的同步变频驱动器相比，这样可以减少所需的转子位置传感器分辨率，从而在传感器设备和相关接线中节省成本。 此外，与传统的梯形电流/直流无刷电机驱动相比，它在高速运行时更安静，更高效。