In this paper, the harmonic mechanical vibration attenuation problem in controlled nonlinear induction motors is considered. A new active vibration control method for both desired motion reference trajectory tracking and suppression of harmful harmonic load torque vibrations on three‐phase nonlinear squirrel‐cage induction motors is proposed. It is demonstrated that virtual dynamic vibration absorbers can be embedded into control reference signals to neutralize harmonic torque vibrations. Efficient tracking of smooth reference trajectories for angular velocity and magnetic flux can be thus performed without significant oscillations. An effective and fast estimator for unavailable magnetic flux signals on the rotor is introduced. To highlight the vibration attenuation capability of the proposed tracking control scheme based on virtual dynamic absorbers, a comparative analysis with passivity‐based control is presented. Analytical and numerical results prove the robustness and efficiency of the dynamic tracking control method on multi‐input multi‐output large‐capacity nonlinear induction motors subjected to undesirable forced vibrations.

中文翻译：

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非线性感应电动机的谐波振动抑制方法

本文考虑了受控非线性感应电动机的谐波机械振动衰减问题。提出了一种新的主​​动振动控制方法，该方法既可以跟踪期望的运动参考轨迹，又可以抑制三相非线性鼠笼式感应电动机上的有害谐波负载转矩振动。结果表明，虚拟动态吸振器可以嵌入控制参考信号中，以抵消谐波转矩振动。因此，可以在没有明显振荡的情况下对角速度和磁通量的平滑参考轨迹进行有效跟踪。介绍了一种有效，快速的转子不可用磁通量估计器。为了突出所提出的基于虚拟动态吸收器的跟踪控制方案的振动衰减能力，提出了基于无源控制的比较分析。分析和数值结果证明了动态跟踪控制方法在多输入多输出大容量非线性感应电动机上承受不期望的强迫振动的鲁棒性和效率。