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Abstract:PID controller’s performance completely depends on the combination of the control parameters,an improved particle
swal31n optimization(Crossbreed-PSO)is proposed in tuning and optimization of PID parameters in this paper.it adopts the cross—
breeding mechanism in genetic algorithm,and using non-hnear inertia weight reduction strategy to accelerate the optimize convergenee
and improve the search capabilities of particles.The algorithm is applied to optimize a second-order system PID control
parameters,simulation results show that the improved PSO has a better performance than both the conventional particle 8warnl
optimization and genetic algorithm,which means a well prospective.