控制电压和由恒流电源输出的电流之间的关系改变可能会产生漂移。

The relationship between the control voltage and the current output by the constant-current source may shift.

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当你漂移的时候，你在控制着汽车，但你自己又失去了控制

‘When you drift, you're in control and out of control.’

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电机控制模型中的建模误差，以及系统运行中的参数漂移，诸如电机的定、转子电阻随着温度发生变化，相当于对所研究的控制系统加入了扰动。

The modelling inaccuracy and parameter drift in motor control, such as the stator and rotor resistance shift with temperature, act as the disturbance in the control system.

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