A neural adaptive proportion sum differential (PSD) algorithm with errors prediction is researched. It is applied in inertial navigation system(INS) temperature control. The algorithm do not need the process's pre...A neural adaptive proportion sum differential (PSD) algorithm with errors prediction is researched. It is applied in inertial navigation system(INS) temperature control. The algorithm do not need the process's precise mathematical model and can adapt to the process parameters changing, and can deal with the process with nonlinearity. According to the Smith predictor, author developed a method that takes the predicted process error and error change as neural adaptive PSD algorithm's input. The method is effective to the system with long dead time. The results of compute simulation show that this system has characters of quickly reaction, low overshoot and good stability. It can meet the requirements of temperature control of INS.展开更多
By studying the slab moving in detail in the plate rolling process, the problem of slab tracking and controlling was solved by using the distributed control system. The problems of rhythm control for the big-complex s...By studying the slab moving in detail in the plate rolling process, the problem of slab tracking and controlling was solved by using the distributed control system. The problems of rhythm control for the big-complex system, the exchange of manual and automatic operations, the data exchange between the levelⅠ, TCS (technology control system) and levelⅡ, PCS (process control system), are solved. By this way, the automatic level of the plate production line is improved.展开更多
文摘为了提高光学相位补偿器SBC-IR的控制精度,解决传统PID算法在自动控制过程中响应速度较慢、精度低等问题,更好地实现PID参数的智能整定与位置最优控制,采用粒子群算法(Particle Swarm Optimization,PSO)优化光学相位补偿器电动位移装置的直流伺服位置控制系统,实现对三环比例、积分和微分(Proportional Integral Derivative,PID)位置控制系统参数的自动寻优。首先,搭建电动位移装置的三环直流伺服控制系统模型,包括位置环、速度环和电流环;然后,采用PSO算法对位置环的PID参数进行寻优,得到kp、ki、kd三个参数的最优值,并对PSO算法优化直流伺服位置系统的控制效果与传统PID控制算法的控制效果进行对比。实验结果表明:采用PSO算法优化的电动位移装置三环伺服位置系统具有较好的控制性能,可以实现位置的高性能追踪,响应速度更快,并能在一定程度上提升电动位移装置的位移精度。
文摘A neural adaptive proportion sum differential (PSD) algorithm with errors prediction is researched. It is applied in inertial navigation system(INS) temperature control. The algorithm do not need the process's precise mathematical model and can adapt to the process parameters changing, and can deal with the process with nonlinearity. According to the Smith predictor, author developed a method that takes the predicted process error and error change as neural adaptive PSD algorithm's input. The method is effective to the system with long dead time. The results of compute simulation show that this system has characters of quickly reaction, low overshoot and good stability. It can meet the requirements of temperature control of INS.
文摘By studying the slab moving in detail in the plate rolling process, the problem of slab tracking and controlling was solved by using the distributed control system. The problems of rhythm control for the big-complex system, the exchange of manual and automatic operations, the data exchange between the levelⅠ, TCS (technology control system) and levelⅡ, PCS (process control system), are solved. By this way, the automatic level of the plate production line is improved.
