Verification of failover effects from distributed control system communication networks in digitalized nuclear power plants

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자료유형: 학술저널

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저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제49권 제5호

발행연도: 2017.1

수록면: 989 - 995 (7page)

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Distributed Control System (DCS) communication networks, which use Fast Ethernet with redundantnetworks for the transmission of information, have been installed in digitalized nuclear power plants. Normally, failover tests are performed to verify the reliability of redundant networks during design andmanufacturing phases; however, systematic integrity tests of DCS networks cannot be fully performedduring these phases because all relevant equipment is not installed completely during these two phases. In additions, practical verification tests are insufficient, and there is a need to test the actual failoverfunction of DCS redundant networks in the target environment. The purpose of this study is to verify thatthe failover functions works correctly in certain abnormal conditions during installation and commissioningphase and identify the influence of network failover on the entire DCS. To quantify the effects of network failover in the DCS, the packets (Protocol Data Units) must be collected and resource usage ofthe system has to be monitored and analyzed. This study introduces the use of a new methodology forverification of DCS network failover during the installation and commissioning phases. This study isexpected to provide insight into verification methodology and the failover effects from DCS redundantnetworks. It also provides test results of network performance from DCS network failover in digitalizeddomestic nuclear power plants (NPPs).

#Network Failover #Network Verification Methodology #Network Test #Redundant Network Verification #Packets loss rate #Packets error rate #Protocol Data Unit #Non-deterministic Network #Ethernet Network #TCP/IP Network

참고문헌 (15)

참고문헌 신청

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D.-H. Kim / 2006 / A Safety-Based Protocol for Data Communication Network Structure in Nuclear Power Plants / Hannam Press

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Electric Power Research Institute / 2005 / Technical Results 1011711 Final Program on Technology Innovation Network Management Technology Applied to Power Plant Instrumentation, Control,

G. G. Preckshot / 1993 / Data Communications

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