Engine start system with quadrature AC excitation,申请号EP20080157450-传众专利搜索

Engine start system with quadrature AC excitation

申请公布号：EP2001121(A2)

申请号：EP20080157450

申请日期：2008.06.02

申请公布日期：2008.12.10

申请人：

HONEYWELL INTERNATIONAL INC.

发明人：XU, MINGZHOU;ANGHEL, CHRISTIAN E.;PEARSON, WAYNE T.

分类号：H02P9/08;H02P6/22;H02P9/30

主分类号：H02P9/08

摘要：A starter-generator system may be used to supply sufficient starting torque to start an aircraft main engine. The main starter-generator stator winding may be connected to a constant frequency (CF) power source to create a rotating field in the main starter-generator air gap. This rotating field, in turn, may induce current on the main rotor winding, which may be a closed circuit formed by main rotor field winding and exciter armature winding. The interaction between the main rotor current and the air gap flux may give rise to the starting torque to start the main engine. Adjusting the voltage supplied to the exciter stator field winding can modify the induced voltage and current on the rotor circuit to control the rotor current and starting torque. The starter-generator system may also be used to start an aircraft main engine by directly connecting the main stator winding to a power source without powering the exciter stator.