公开(公告)号：US08330430B2

公开(公告)日：2012-12-11

申请号：US12271365

申请日：2008-11-14

Applicant: Robert R. Steele, Jr. ,  Jack D. Harmon ,  Mingshe Zhou

Inventor： Robert R. Steele, Jr. ,  Jack D. Harmon ,  Mingshe Zhou

IPC: H02P11/00 ,  H02P9/00

CPC classification number: H02P9/305 ,  H02P9/48

Abstract: An alternator comprises a regulator configured to control the electric current to a field coil. The regulator includes a field driver circuit, the field driver circuit configured to deliver the electric current to the field coil at a switching frequency. The regulator further includes a controller configured to vary the switching frequency of the field driver circuit between a plurality of different switching frequencies. The alternator further comprises a sensor configured to detect a predetermined alternator condition, and the controller is configured to adjust the switching frequency of the field driver circuit in response to the sensed predetermined condition such as, for example, a rotor speed, a pulse width from the field driver circuit, an efficiency of the alternator, a temperature within the alternator, a temperature outside of the alternator, or magnetic noise of the alternator.

Abstract translation: 交流发电机包括被配置为控制到场线圈的电流的调节器。 调节器包括场驱动器电路，该场驱动器电路被配置为以切换频率将电流输送到励磁线圈。 调节器还包括控制器，其被配置为改变场驱动器电路在多个不同开关频率之间的开关频率。 交流发电机还包括被配置为检测预定交流发电机状态的传感器，并且控制器被配置为响应于感测的预定条件来调整励磁驱动器电路的开关频率，例如转子速度， 现场驱动器电路，交流发电机的效率，交流发电机内的温度，交流发电机外部的温度或交流发电机的磁性噪声。