The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power Plants
In order to improve the capability of dealing with software common cause failure (CCF) of digital reactor protection and monitoring system (RPMS), the diverse actuation system (DAS) is introduced for ACPR1000 nuclear power plants. From economic and feasibility point of view, the solution of DAS shar...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2021/5529570 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832563678154588160 |
|---|---|
| author | Zhen-Ying Wang Zhi-Yun Liu Ting-Wei Ma Chen Sun Liu Liu Yu Huang Gang-Miao Guo |
| author_facet | Zhen-Ying Wang Zhi-Yun Liu Ting-Wei Ma Chen Sun Liu Liu Yu Huang Gang-Miao Guo |
| author_sort | Zhen-Ying Wang |
| collection | DOAJ |
| description | In order to improve the capability of dealing with software common cause failure (CCF) of digital reactor protection and monitoring system (RPMS), the diverse actuation system (DAS) is introduced for ACPR1000 nuclear power plants. From economic and feasibility point of view, the solution of DAS sharing with RPMS sensors and actuators is suggested; after capturing the function requirement of DAS, the automatic functions and manual functions assigned to it are determined based on transient analysis of design basic accidents concurrent with software CCF of RPMS. The independent verification proves that the reactor can be fallen back to and maintained at safety shutdown state, thanks to these DAS functions. Insight into probabilistic safety assessment proves significant reductions of risks are contributed. The critical technical issues while implementing DAS, such as measures to ensure its diversity from RPMS, precautions for preventing from its spurious actuation, isolation and independency from RPMS, and its testability and maintainability, are deliberately settled to improve its engineering reliability and alleviate the impact on RPMS as far as possible. Field programmable gate array technology that is diversified from RPMS is chosen to build DAS of ACPR1000 nuclear power plant, and the commissioning test verifies that it is capable of performing its designed functions. At last, a set of DAS-specific, paper-based, and event-oriented emergency operating procedure is developed, verified, and validated. Until now, the DAS system has always been successfully operating in all ACPR1000 nuclear power plants for several years. |
| format | Article |
| id | doaj-art-ff3ef622d65746a9a95d606900b2f376 |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-ff3ef622d65746a9a95d606900b2f3762025-02-03T01:12:54ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832021-01-01202110.1155/2021/55295705529570The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power PlantsZhen-Ying Wang0Zhi-Yun Liu1Ting-Wei Ma2Chen Sun3Liu Liu4Yu Huang5Gang-Miao Guo6State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen 518100, ChinaState Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen 518100, ChinaState Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen 518100, ChinaState Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen 518100, ChinaState Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen 518100, ChinaState Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen 518100, ChinaState Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen 518100, ChinaIn order to improve the capability of dealing with software common cause failure (CCF) of digital reactor protection and monitoring system (RPMS), the diverse actuation system (DAS) is introduced for ACPR1000 nuclear power plants. From economic and feasibility point of view, the solution of DAS sharing with RPMS sensors and actuators is suggested; after capturing the function requirement of DAS, the automatic functions and manual functions assigned to it are determined based on transient analysis of design basic accidents concurrent with software CCF of RPMS. The independent verification proves that the reactor can be fallen back to and maintained at safety shutdown state, thanks to these DAS functions. Insight into probabilistic safety assessment proves significant reductions of risks are contributed. The critical technical issues while implementing DAS, such as measures to ensure its diversity from RPMS, precautions for preventing from its spurious actuation, isolation and independency from RPMS, and its testability and maintainability, are deliberately settled to improve its engineering reliability and alleviate the impact on RPMS as far as possible. Field programmable gate array technology that is diversified from RPMS is chosen to build DAS of ACPR1000 nuclear power plant, and the commissioning test verifies that it is capable of performing its designed functions. At last, a set of DAS-specific, paper-based, and event-oriented emergency operating procedure is developed, verified, and validated. Until now, the DAS system has always been successfully operating in all ACPR1000 nuclear power plants for several years.http://dx.doi.org/10.1155/2021/5529570 |
| spellingShingle | Zhen-Ying Wang Zhi-Yun Liu Ting-Wei Ma Chen Sun Liu Liu Yu Huang Gang-Miao Guo The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power Plants Science and Technology of Nuclear Installations |
| title | The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power Plants |
| title_full | The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power Plants |
| title_fullStr | The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power Plants |
| title_full_unstemmed | The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power Plants |
| title_short | The Implementation of Diverse Actuation System in ACPR1000 Nuclear Power Plants |
| title_sort | implementation of diverse actuation system in acpr1000 nuclear power plants |
| url | http://dx.doi.org/10.1155/2021/5529570 |
| work_keys_str_mv | AT zhenyingwang theimplementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT zhiyunliu theimplementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT tingweima theimplementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT chensun theimplementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT liuliu theimplementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT yuhuang theimplementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT gangmiaoguo theimplementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT zhenyingwang implementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT zhiyunliu implementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT tingweima implementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT chensun implementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT liuliu implementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT yuhuang implementationofdiverseactuationsysteminacpr1000nuclearpowerplants AT gangmiaoguo implementationofdiverseactuationsysteminacpr1000nuclearpowerplants |