求专业自动化翻译

来源:百度知道 编辑:UC知道 时间:2024/05/25 17:16:39
Integrating process companying with time delay is the most frequently encountered in industry, especially in common level and interface level systems. Also some first order processes with large time constant are often treated as integrating system [1][2]. The research of integrating processes with time delay is well-rounded and many control algorithms are proposed nowadays. For integrating system with small time delay the conventional PI controller can do a better job and for large time delay system Smith predictor is the best choice, but under load disturbance and model-process mismatch it always results in a steady error which leads this kind of controller useless indeed. In order to eliminate the steady error many kinds of modified Smith predictors and controllers designed from setpoint tracking and disturbance rejection respectively [3][4][5]. With the great success of model predictive control, many researchers apply this strategy to design controller for uncertain integrating syst

整合进程伴时滞是最经常遇到的行业,特别是在共同的水平和接口级系统。也有一些一阶过程大时间常数通常视为集成系统[ 1 ] [ 2 ] 。这项研究整合进程具有时滞是全面的,许多控制算法,提出现在。集成系统的小时滞常规PI控制器可以做更好的工作和大滞后系统的Smith预估器的最佳选择,但根据负载扰动和模型的过程中总是不匹配的结果稳步错误导致这种控制器确实无用。为了消除稳态误差多种改性史密斯预测器和控制器设计,定点跟踪和干扰抑制分别为[ 3 ] [ 4 ] [ 5 ] 。随着巨大的成功的模型预测控制,许多研究人员采用这一战略,设计控制器的不确定集成系统[ 6 ] [ 7 ] [ 8 ] 。一种双预测PI控制器的目的是在一个简单的调整方式为这种类型的进程,并适用于温度控制的生物发酵罐较好的业绩[ 9 ] 。从本质上讲,集成过程系统是一个不稳定的系统,因为阶跃响应的集成系统不能达到稳定状态值无论多长的反应时间即止。