公开(公告)号：US10852177B2

公开(公告)日：2020-12-01

申请号：US15780958

申请日：2016-12-22

Applicant: General Electric Company

Inventor： Tong Zhao ,  Yu Ru

IPC: G01F25/00 ,  G01F1/34 ,  G01F5/00 ,  G01F9/00

Abstract: The present disclosure relates to a calibration device for calibrating a virtual flow meter of a production system. The production system includes components for transferring fluid, where the virtual flow meter is configured to estimate a flow rate of the fluid based on property values of the components and values of variable parameters of the components. The calibration device includes a sensitivity determining module configured to calculate a first sensitivity, where the first sensitivity is used to indicate a degree of change of the values of the variable parameters relative to disturbance of the property values, and a calibration module configured to calibrate the virtual flow meter according to the first sensitivity.

公开(公告)号：US20220057244A1

公开(公告)日：2022-02-24

申请号：US17275763

申请日：2016-09-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Carlos Alberto Cavichioloi Gonzaga ,  Tong Zhao ,  Yu Ru

IPC: G01F1/74 ,  G01F25/00

Abstract: The present discussion relates to the addressing sensor drift issues in virtual flow meter applications. By way of example, in certain implementations: 1) pressure, temperature, or other sensors are prioritized based on one or more evaluation criteria, 2) a determination is made as to whether there are sensor drifts for those sensors with high priority, and 3) sensor readings experiencing drift, such as above a specified or measureable threshold, are compensated. In this manner, virtual flow meter accuracy is maintained over time.