带有前置和后置滤波器的滑模观测器仿真研究

A Simulation Research of Sliding Mode Observer with Pre-Filter and Post-Filter

为了减小电流噪声对于滑模观测器的影响以及降低滑模观测器控制算法对于硬件的要求,设计了带有前置滤波器和后置滤波器的滑模观测器,并利用李雅普诺夫稳定性理论推导了滑模控制系统的稳定性条件。通过仿真实验证明了该滑模观测器能实时地跟踪到准确的转子角度信息,控制系统具有较强的鲁棒性,运行稳定可靠。

In order to reduce the impact of current noises to sliding mode observer and the requirements of sliding mode observer control algorithm to hardware, proposes a new sliding mode observer with pre-filter and post-filter and derives the stable condition of sliding mode control system by Lyapunov stability theory. The simulation experiments indicate that the sliding mode observer real-time tracks the rotor angle information accurately, and the control system has strong robustness and operates stably and reliably.