It is difficult for the traditional PID regulator to adjust parameters online in controlling complicated timevarying systems
and the gain is unable to be adjusted automatically and the response rate is lower for the single neuron PID regulator. A new single neuron adaptive PID regulator based on immune feedback mechanism is proposed and applied to PMSM AC servo system. The single neuron adaptive PID algorithm is employed as the speed closed-loop controller of servo system to fulfill real-time adjustment of the PID parameters
and the immune feedback mechanism is embedded to achieve self-adjustment of the gain coefficient and enhance the response rate. The simulations and experiments show that the control strategy effectively increases anti-disturbance capabilities and improves speed control effects of the system
thus the overshoot and oscillation get less
the response rate heightens
and the steady state error becomes smaller speed control
loading to better dynamical and steady state performances of speed control.
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references
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