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

目的是有补偿脉冲发电机电励磁结构复杂、永磁励磁输出不能调节题。

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.

而不可调整升级型衰产业本文则做出了出的建议，出的障碍、出的方式及顺利出的政策保障进行了论述。