Study on T2 Test Time Optimization Method of DAS

被引：0

作者：

Zhang R. ^{[1
]}

Wang D. ^{[1
]}

Li G. ^{[1
]}

Chen Y. ^{[2
]}

Wang J. ^{[1
]}

Han B. ^{[1
]}

机构：

[1] China Techenergy Co., Ltd., Beijing

[2] CGN Huizhou Nuclear Power Co., Ltd., Guangdong, Huizhou

来源：

Hedongli Gongcheng/Nuclear Power Engineering | 2023年 / 44卷 / 03期

关键词：

Bypass; Diversity actuation system (DAS); Reference clock; T2; test; Timer;

D O I：

10.13832/j.jnpe.2023.03.0185

中图分类号：

学科分类号：

摘要：

In the logic function verification test (T2 test) of the Diversity Actuation System (DAS), the verification of the timer in the logical link is often carried out by waiting, making the test last for more than 2 hours, causing human error in the waiting process. In order to reduce T2 test time and human failure, in this study, an optimization method of T2 test time for DAS based on simple hardware technology was proposed. When verifying the logic function, the timers were bypassed, and then the timers were accelerated by adjusting the reference clock of them. The result shows that the total time of T2 test for DAS can be controlled within 30 minutes. Therefore, compared with the traditional test method, the test time is greatly shortened, and the human failure during the test can be effectively avoided, so as to meet the latest requirements of T2 test time in nuclear power plants. © 2023 Yuan Zi Neng Chuban She. All rights reserved.

引用

页码：185 / 188

页数：3

共 9 条

[1] IEEE standard criteria for the periodic surveillance testing of nuclear power generating station safety systems: IEEE 338-2006, pp. 1-63, (2006)
[2] Nuclear power plants-instrumentation and control systems important to safety-surveillance testing: IEC 60671: 2007, (2007)
[3] (2009)
[4] 7, pp. 86-89, (2017)
[5] WOOD R T, BELLES R, CETINER M S, Et al., Diversity strategies for nuclear power plant instrumentation and control system: NUREG/CR-7007, (2010)
[6] NASER J., Guidelines on the use of field programmable gate arrays in nuclear power plant I&C systems： TR-1019181, (2009)
[7] Method for performing diversity and defense-in-depth analyses of reactor protection systems: NUREG/CR-6303, (1994)
[8] 13, 5, pp. 611-616, (2020)
[9] pp. 150-300, (2010)

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