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Two-Stage Algorithm for Industrial Control


Modified Two-Stage Algorithm of Adaptive Identification for Non-Stationary and Nonlinear Plants

Tech Area / Field

  • MAN-MPS/Manufacturing, Planning, Processing and Control/Manufacturing Technology
  • MAN-PDM/Plant Design and Maintenance/Manufacturing Technology

3 Approved without Funding

Registration date

Leading Institute
Research Institute of Industrial Automation, Georgia, Rustavi


  • Brown University, USA, RI, Providence\nUniversity of Southern California, USA, CA, Los-Angeles\nDuke University, USA, NH, Durham

Project summary

In order to create the system of control with high efficiency it’s necessary to design new principles of control. This can sometimes provide considerable improvements in the quality or quantity of a produced item.

One of the available control methods is Adaptive Control, which allows adaptive control using closed loop feedback.
The design of an effective algorithm which includes an appropriate method of identification is very important.
Proposed project pursues the aims of:
· creating a modified two-stage algorithm of identification for linear and nonlinear plants;
· establishing of classes of nonlinear plants, to which created the modified algorithm will be applicable;
· experimental investigation and computer-aided simulation of the new algorithm;
· giving appropriate recommendations relatively to the application of the new algorithm for various plants;
· creation of program packages for application of the algorithm to industrial ASI;
The proposed modified algorithm will offer the possibility to more fully to ensure demands of control systems characterized by high efficiency. This may allow plants to produce items with high quality rate and to lower expenditures on energy and raw materials.

The application of the newly designed algorithm and methods of adjacent approaches (Theory of Catastrophes, etc.) will provide the opportunity for further perfection in identification theory.
The research will include:
· analytic formalization of algorithm,
· computer-aided simulation of algorithm,
· experimentation with algorithm on appropriate plants,
· comparative analysis of designed algorithm with other ones.
The main results of the Project will be following.
1. Founded on modern methods of linear and nonlinear identification, we will design a modified two-stage algorithm.
2. By using available methods, we will design, using the results of project G-128 of ISTC, computer aided simulation of algorithm
3. Through this project , founded on methods of theory of catastrophes, we will investigate conditions for of applicability of modified two-stage algorithm.
4. By using modern software tools, an appropriate set of investigations will be undertaken using the computer aided model, investigating industrial ASI in general.
5. The methods and program of algorithm investigation will be adjusted with collaborator input.
6. By use of designed methods and program we will investigate:
  • convergence of algoriihm
  • accuracy of forecasting
  • the influence of parameters, noises, of class and dimension of plants etc., on above mentioned characteristics.


The International Science and Technology Center (ISTC) is an intergovernmental organization connecting scientists from Kazakhstan, Armenia, Tajikistan, Kyrgyzstan, and Georgia with their peers and research organizations in the EU, Japan, Republic of Korea, Norway and the United States.


ISTC facilitates international science projects and assists the global scientific and business community to source and engage with CIS and Georgian institutes that develop or possess an excellence of scientific know-how.

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