The invention aims to solve problems in the prior compensation pulse generator, such as complicated electrical excitation structure and unadjustable permanent magnet excitation output.

目是解决现有补发电机电励磁结构复杂、永磁励磁输不能调节题。

For unadjustable ones, the exit may be the best choice.This paper also studied the relevant barrier, ways and policies.The last part can be viewed as a case discussion.

而对不可调整升级型衰产业本文则做了建议，并对障碍、方式及顺利政策保障进行了论述。