Journals Information
Universal Journal of Control and Automation(CEASE PUBLICATION) Vol. 3(2), pp. 15 - 27
DOI: 10.13189/ujca.2015.030201
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Fuzzy Automating Strategies of Emergency Operation for SGTR Accident in VVER 1000 Nuclear Reactor
Ebrahim Modarresi *, Faridoon Shabaninia
Shiraz University, Iran
ABSTRACT
Steam generator tube rupture is one of the most important accidents that is focused nowadays. In this work, the automating strategies of emergency operation are developed for SGTR accident in VVER 1000 nuclear reactor. After recognizing accident, reactor must be shut down and controlled properly in order to reach safe state of that. In control, cooldown is planned by establishing operational goals, forming strategies, and specifying operational means and constraints. According to operation manual reactor, cooling is done by means of releasing steam from steam valve BRU-A on steam generator. The reference set points of the controlled parameters are adaptively adjusted through fuzzy reasoning for optimal cooldown and depressurization. These strategies can make emergency operation optimal, and as well they considerably lengthen the operator response time. The validation of the proposed strategies was carried out using the micro-simulator with steam generator tube rupture(SGTR) events. The results indicate that the automation emergency operation successfully drives the plant at full power to a cold shutdown state with all the operational constraints satisfied. Analysis of result shows us:A. pressure of first loop wouldn't exceed primary value during accident. Maximum of pressure of reactor in second loop on steam generator 鈥淏鈥� is 71.91 barg. B. maximum temperature of fuel rods and fuels don't exceed primary values. Maximum and minimum temperature of fuel rods are 788℃ and 546.95℃ respectively.
KEYWORDS
VVER 1000, SGTR, Automation, Simulator, Fuzzy
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Ebrahim Modarresi , Faridoon Shabaninia , "Fuzzy Automating Strategies of Emergency Operation for SGTR Accident in VVER 1000 Nuclear Reactor," Universal Journal of Control and Automation(CEASE PUBLICATION), Vol. 3, No. 2, pp. 15 - 27, 2015. DOI: 10.13189/ujca.2015.030201.
(b). APA Format:
Ebrahim Modarresi , Faridoon Shabaninia (2015). Fuzzy Automating Strategies of Emergency Operation for SGTR Accident in VVER 1000 Nuclear Reactor. Universal Journal of Control and Automation(CEASE PUBLICATION), 3(2), 15 - 27. DOI: 10.13189/ujca.2015.030201.