Introduces the saturation function into controller, reduces the wide-range switch of control gain, ensures the stability of stator voltage.

在控制器中引入了饱和函数，降低了控制增益的大幅切换，保证了定子电压的稳定性。

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The symbolic function in the variable structure control is replaced by the saturation function to reduce the chattering which is brought by the variable structure control system.

同时对变结构控制律中包含的符号函数项，采取了用饱和函数来代替的方法以尽可能地抑制变结构系统所带来的抖振。

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The symbolic function in the variable structure control is replaced by the saturation function to reduce the chattering which is brought by the variable structure control system.

同时对变结构控制律中包含的符号函数项，采取了用饱和函数来代替的方法以尽可能地抑制变结构系统所带来的抖振。

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