Variable link sensorless brushless direct current motor controller for space and hardened applications
摘要
A sensorless motor controller (22) includes a variable link control, including a radiation-hardened field programmable gate array (FPGA) (28) and a back electromotive force (EMF) decoder circuit (30). The back EMF decoder (30) infers the position of a rotor of the motor (24). A filter (38) on the decoder (30) conditions the back EMF signal and has multiple cutoff frequencies which can be dynamically controlled by the FPGA (28) in order to compensate for phase shift in the back EMF signal. The FPGA (28) also controls a variable DC link and its digital speed control loop.
申请公布号
EP2770628(A3)
申请公布日期
2015.03.04
申请号
EP20140158300
申请日期
2014.03.07
申请人
HAMILTON SUNDSTRAND CORPORATION
发明人
HANSEN, HAROLD J.;WICHOWSKI, ROBERT P.;HAWES, KEVIN G.;SEARS, PATRICK J.