Multi-region fuzzy logic controller with local PID controllers for U-tube steam generator in nuclear power plant

• Autorzy: Puchalski B. , Duzinkiewicz K. , Rutkowski T.

Identyfikatory

DOI

10.1515/acsc-2015-0028

• Języki publikacji: EN

Abstrakty

EN

In the paper, analysis of multi-region fuzzy logic controller with local PID controllers for steam generator of pressurized water reactor (PWR) working in wide range of thermal power changes is presented. The U-tube steam generator has a nonlinear dynamics depending on thermal power transferred from coolant of the primary loop of the PWR plant. Control of water level in the steam generator conducted by a traditional PID controller which is designed for nominal power level of the nuclear reactor operates insufficiently well in wide range of operational conditions, especially at the low thermal power level. Thus the steam generator is often controlled manually by operators. Incorrect water level in the steam generator may lead to accidental shutdown of the nuclear reactor and consequently financial losses. In the paper a comparison of proposed multi region fuzzy logic controller and traditional PID controllers designed only for nominal condition is presented. The gains of the local PID controllers have been derived by solving appropriate optimization tasks with the cost function in a form of integrated squared error (ISE) criterion. In both cases, a model of steam generator which is readily available in literature was used for control algorithms synthesis purposes. The proposed multi-region fuzzy logic controller and traditional PID controller were subjected to broad-based simulation tests in rapid prototyping software - Matlab/Simulink. These tests proved the advantage of multi-region fuzzy logic controller with local PID controllers over its traditional counterpart.

Słowa kluczowe

EN

nuclear power plant; U-tube steam generator; PID control; fuzzy logic; multiregion PID controller; advanced control systems

• Wydawca: Polish Academy of Sciences, Committee of Automatic Control and Robotics
• Czasopismo: Archives of Control Sciences
• Rocznik: 2015
• Tom: Vol. 25, no. 4
• Strony: 429--444
• Opis fizyczny: Bibliogr. 14 poz., rys., schem., tab., wykr., wzory

Twórcy

autor

Puchalski B.

• Gdańsk University of Technology, Faculty of Electrical and Control Engineering, G. Narutowicza 11/12 80-233 Gdańsk, Poland

autor

Duzinkiewicz K.

• Gdańsk University of Technology, Faculty of Electrical and Control Engineering, G. Narutowicza 11/12 80-233 Gdańsk, Poland

autor

Rutkowski T.

• Gdańsk University of Technology, Faculty of Electrical and Control Engineering, G. Narutowicza 11/12 80-233 Gdańsk, Poland

Bibliografia

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Uwagi

EN

This work was supported by the National Centre for Research and Development under Strategic Research Project No. SP/J/10/176450/12. The authors wish to express their thanks for the support