在伺服系统中，由于系统参数变化和外部干扰的存在，应用常规pid控制方法往往使系统产生较大的超调量甚至不稳定。
In the servo system, variation of the system parameters and external disturbances always happen. The conventional PID controller tends to make the system have a large overshoot even unstable.
在伺服系统中，由于系统参数变化和外部干扰的存在，应用常规pid控制方法往往使系统产生较大的超调量甚至不稳定。
In the servo system, variation of the system parameters and external disturbances always happen. The conventional PID controller tends to make the system have a large overshoot even unstable.
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