Title:
METHOD AND APPARATUS FOR EVALUATING INDUSTRIAL CONTROL LOOP PERFORMANCE BASED ON FULL LOOP RECONSTRUCTION SIMULATION
Document Type and Number:
WIPO Patent Application WO/2019/051963
Kind Code:
A1
Abstract:
Disclosed are a method and apparatus for evaluating industrial control loop performance based on full loop reconstruction simulation. The method comprises: performing reconstruction simulation one by one on control modules in a control loop other than a controlled object, and determining the correctness of the reconstructed control modules; establishing a mathematical model of the controlled object, and connecting same to the reconstructed control modules, completing the reconstruction of the whole control loop, and optimising the mathematical model of the controlled object to obtain an optimised model of the controlled object; according to a control performance index, adjusting control module parameters, using the parameters to perform simulation calculation on the reconstructed control loop to obtain a theoretical value of the reconstructed performance control index, and evaluating the performance of the control loop. The industrial control loop is reconstructed and, based on this, evaluating the influence of control modules such as a PID controller, a filter, a fragment linear function, and a dead-zone link on control performance, indicating improvement space for control performance and a corresponding technical solution.
Inventors:
WANG JIANDONG (CN)
YANG ZIJIANG (CN)
YANG ZIJIANG (CN)
Application Number:
PCT/CN2017/109548
Publication Date:
March 21, 2019
Filing Date:
November 06, 2017
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
G05B17/02
Foreign References:
| CN102998974A | 2013-03-27 | |||
| CN103309237A | 2013-09-18 | |||
| CN102393627A | 2012-03-28 | |||
| CN107085420A | 2017-08-22 | |||
| US20110288846A1 | 2011-11-24 |
Other References:
YU , ZHENPENG ET AL.: "Performance Assessment of Static Lead-Lag Feedforward Controllers for Disturbance Rejection in PID Control Loops", ISA TRANSACTIONS, vol. 64, 4 May 2016 (2016-05-04), pages 67 - 76, XP029731710, ISSN: 0019-0578, DOI: doi:10.1016/j.isatra.2016.04.016
SUN, JINMING ET AL.: "PID (PID Performance Assessment", CONTROL AND INSTRUMENTS IN CHEMICAL INDUSTRY, vol. 31, no. 5, 31 December 2014 (2014-12-31), pages 21 - 23, ISSN: 1000-3932
SUN, JINMING ET AL.: "PID (PID Performance Assessment", CONTROL AND INSTRUMENTS IN CHEMICAL INDUSTRY, vol. 31, no. 5, 31 December 2014 (2014-12-31), pages 21 - 23, ISSN: 1000-3932
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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