公开(公告)号：US10344615B2

公开(公告)日：2019-07-09

申请号：US15630455

申请日：2017-06-22

Applicant: General Electric Company

Inventor： Darryl Brian Price ,  Mitchell Donald Smith

IPC: F01D17/16 ,  F01D21/00 ,  G05B13/02

Abstract: A method and system of scheduling a demand for a process inner loop are provided. The loop controller includes an inner loop control system configured to generate a control output signal for a controllable member and a schedule demand module configured to receive parameter values for a controlled variable of a process from a parameter source and to generate a scheduled demand output using a demand schedule. The loop controller also includes a schedule prediction module configured to predict a future value of a scheduling parameter based on a historical performance of the inner loop control system and current system dynamics and to generate a scheduled rate output. The schedule prediction module includes the rate-of-change of a scheduling parameter and a lead time input that defines a look-ahead time period used with the parameter rate signal to determine a future predicted value of the controlled variable.

公开(公告)号：US20180371936A1

公开(公告)日：2018-12-27

申请号：US15630455

申请日：2017-06-22

Applicant: General Electric Company

Inventor： Darryl Brian Price ,  Mitchell Donald Smith

IPC: F01D17/16 ,  F01D21/00 ,  G05B13/02

CPC classification number: F01D17/16 ,  F01D21/003 ,  F02C9/28 ,  F05D2220/32 ,  F05D2240/12 ,  F05D2260/821 ,  F05D2270/44 ,  F05D2270/54 ,  G05B13/021 ,  G05B13/026

Abstract: A method and system of scheduling a demand for a process inner loop are provided. The loop controller includes an inner loop control system configured to generate a control output signal for a controllable member and a schedule demand module configured to receive parameter values for a controlled variable of a process from a parameter source and to generate a scheduled demand output using a demand schedule. The loop controller also includes a schedule prediction module configured to predict a future value of a scheduling parameter based on a historical performance of the inner loop control system and current system dynamics and to generate a scheduled rate output. The schedule prediction module includes the rate-of-change of a scheduling parameter and a lead time input that defines a look-ahead time period used with the parameter rate signal to determine a future predicted value of the controlled variable.