基于模糊PI D控制的半导体激光器温控系统

摘要

基于模糊控制原理，采用模糊控制与PID控制相结合的模糊控制方法，完成了一种针对半导体激光器温度控制的算法设计。该模糊PID控制算法，能够自适应调节PID的比例、积分和微分系数，从而使半导体制冷器的温度保持恒定。Simulink 仿真结果表明，采用该模糊PID控制算法后系统的超调量减少40％，缩短了调节时间，控制效果优于常规PID控制系统。%Based on theory of fuzzy control,a combination method of fuzzy control and PID control is used,which is known as fuzzy PID control.A semiconductor laser temperature control system design is completed.It can adaptively adjust PID proportional,integral and differential coefficient to keep the semiconductor cooler’s temperature con-stant.The simulation results of Simulink show that,after using the fuzzy PID control algorithm the overshoot of the sys-tem is reduced by 40%,the adjustment time is shorten and the control effect is better than conventional PID control system.