光源工程直线加速器工艺冷却水系统建模

以上海光源工程工艺冷却水-电子直线加速器系统为研究对象,采用闭环辨识方法进行建模.在闭环条件下,由于不可测噪声通过反馈环节对系统控制输入信号产生影响,采用二阶段辨识方法对系统进行建模.二阶段闭环辨识算法将闭环辨识问题转换为2个开环辨识问题,通过构造无噪声无污染的中间信号来代替实际的控制输入,以此解除噪声与控制输入之间的相关性,然后利用经典的开环辨识算法可得系统参数的一致无偏估计.

Modeling Electron Linacs Plant of Cooling Water System in Synchrotron Radiation Facility

By using a closed loop identification method,we build a mathematical model of the electron linacs plant of cooling water system in Shanghai Synchrotron Radiation Facility.Due to the impact of noise,which cannot be unmeasured,on the control input data through a two-stage closed feedback loop,identification is used to avoid bias of the obtained model.The algorithm transforms a closed loop identification problem to two open loop problems by constructing an intermediate signal without noise and pollution to rep...