TURBOFAN ENGINE STEADY-STATE AND TRANSIENT-STATE MULTIVARIABLE CONTROL METHOD EMPLOYING ACTIVE DISTURBANCE REJECTION THEORY

WIPO Patent Application WO/2020/118513

A1

A turbofan engine steady-state and transient-state multivariable control method employing an active disturbance rejection theory comprises: preliminarily selecting multiple control quantities and controlled quantities of a turbofan engine, and further determining, by means of a correlation analysis method, a control quantity and a controlled quantity having great correlation; and converting each set of control instructions into a tracking trajectory by means of a tracking differentiator; using the tracking trajectory, and a current status, estimated by an extended state observer, as an input calculation control quantity of a nonlinear proportional-derivative controller, and offsetting, by means of an appropriate structure, a total disturbance observed by the extended state observer and comprising coupling between loops of multiple variables, thereby achieving a good control effect. The control method enables a turbofan engine to meet multiple-input multiple-output requirements, while operating according to a predetermined trajectory so as to meet a control requirement. Compared with a conventional controller control design method, the method of the present invention is less difficult, requires fewer parameters to be adjusted, and the physical meaning thereof is clear, thereby greatly improving system robustness.

DU XIAN (CN)
MA YANHUA (CN)
SUN XIMING (CN)

PCT/CN2018/120254

June 18, 2020

December 11, 2018

Click for automatic bibliography generation  

UNIV DALIAN TECH (CN)

G05B13/04

CN103942357A	2014-07-23
CN106886151A	2017-06-23
CN108762089A	2018-11-06
CN107239634A	2017-10-10
CN103267644A	2013-08-28
CN104462653A	2015-03-25
US20090005886A1	2009-01-01
EP1926001A2	2008-05-28

View/Download PDF      PDF Help

Previous Patent: LFT-BASED AEROENGINE SENSOR AND ACTUATOR FAULT DIAGNOSIS METHOD

Next Patent: RANGING MODULE AND RANGING DEVICE