6Vieten K W, Snyder J D, Clark R P. Redundancy management concepts for advanced actuation systems [ R ]. AIAA-93-1168, 1993
7Lin J S, Chen C L. Buck/boost servo amplifier for direct-drivevalve actuation[J]. IEEE Transactions on Aerospace and Electronic Systems, 1995,31 (3) :960 - 967
8Lin J S, Chen C L, Lai C Y. A high-bandwidth PWM servo amplifier for the direct-drive-valve actuation system [ C ]//Proc IEEE Applied Power Electronics Conference and Exposition. San Diego, CA : IEEE, 1993 : 328 - 332
9Zhu Z Q, Howe D. Influence of design parameters on cogging torque in permanent magnet machines [ J ]. IEEE Transactions on Energy Conversion ,2000,15 (4) :407 - 412