Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power Plants
Nuclear power plants (NPPs) are globally important sources of clean energy. However, high operation and maintenance (O&M) costs are one of the factors hindering the development of NPPs. In this study, we focused on the development of a digital algorithm for ex-core instrumentation systems (EISs)...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-03-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/14/6/2445 |
| _version_ | 1797242250083696640 |
|---|---|
| author | Ryo Konishi Makoto Sasano Masateru Hayashi Tetsushi Azuma |
| author_facet | Ryo Konishi Makoto Sasano Masateru Hayashi Tetsushi Azuma |
| author_sort | Ryo Konishi |
| collection | DOAJ |
| description | Nuclear power plants (NPPs) are globally important sources of clean energy. However, high operation and maintenance (O&M) costs are one of the factors hindering the development of NPPs. In this study, we focused on the development of a digital algorithm for ex-core instrumentation systems (EISs) to reduce O&M costs, given that the digitalization of EISs is not progressing compared with other instrumentation and control systems in NPPs. Specifically, we developed a digital algorithm for pulse signal processing in EISs, which traditionally require a significant amount of hardware and maintenance efforts. Our purposes were to simplify the configuration and reduce the O&M costs associated with pulse signal processing. To validate the algorithm, we used a detector emulator and a research reactor. Additionally, we explored a new approach to reduce the workload associated with a discrimination characteristics test (DCT) in EISs. The results of this study demonstrated that the proposed algorithm is effective in achieving good linearity within ±5% of the span and response performance with a delay time of 5 ms, which are required for EISs. Furthermore, the proposed method for the DCT shows promising results in reducing the time required for the test compared with conventional methods. |
| first_indexed | 2024-04-24T18:36:14Z |
| format | Article |
| id | doaj.art-ff4197ea668642519b850375d8d64820 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-24T18:36:14Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ff4197ea668642519b850375d8d648202024-03-27T13:19:43ZengMDPI AGApplied Sciences2076-34172024-03-01146244510.3390/app14062445Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power PlantsRyo Konishi0Makoto Sasano1Masateru Hayashi2Tetsushi Azuma3Advanced Technology R&D Center, Mitsubishi Electric Corporation, 8-1-1, Tsukaguchi-honmachi, Amagasaki City 661-8661, Hyogo, JapanAdvanced Technology R&D Center, Mitsubishi Electric Corporation, 8-1-1, Tsukaguchi-honmachi, Amagasaki City 661-8661, Hyogo, JapanAdvanced Technology R&D Center, Mitsubishi Electric Corporation, 8-1-1, Tsukaguchi-honmachi, Amagasaki City 661-8661, Hyogo, JapanEnergy System Center, Mitsubishi Electric Corporation, 1-1-2, Wadasakicho, Kobe City 652-8555, Hyogo, JapanNuclear power plants (NPPs) are globally important sources of clean energy. However, high operation and maintenance (O&M) costs are one of the factors hindering the development of NPPs. In this study, we focused on the development of a digital algorithm for ex-core instrumentation systems (EISs) to reduce O&M costs, given that the digitalization of EISs is not progressing compared with other instrumentation and control systems in NPPs. Specifically, we developed a digital algorithm for pulse signal processing in EISs, which traditionally require a significant amount of hardware and maintenance efforts. Our purposes were to simplify the configuration and reduce the O&M costs associated with pulse signal processing. To validate the algorithm, we used a detector emulator and a research reactor. Additionally, we explored a new approach to reduce the workload associated with a discrimination characteristics test (DCT) in EISs. The results of this study demonstrated that the proposed algorithm is effective in achieving good linearity within ±5% of the span and response performance with a delay time of 5 ms, which are required for EISs. Furthermore, the proposed method for the DCT shows promising results in reducing the time required for the test compared with conventional methods.https://www.mdpi.com/2076-3417/14/6/2445nuclear power plantinstrumentation and control systemdigitalizationfield-programmable gate array |
| spellingShingle | Ryo Konishi Makoto Sasano Masateru Hayashi Tetsushi Azuma Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power Plants Applied Sciences nuclear power plant instrumentation and control system digitalization field-programmable gate array |
| title | Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power Plants |
| title_full | Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power Plants |
| title_fullStr | Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power Plants |
| title_full_unstemmed | Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power Plants |
| title_short | Digitalization of Pulse Signal Processing for Ex-Core Instrumentation System in Nuclear Power Plants |
| title_sort | digitalization of pulse signal processing for ex core instrumentation system in nuclear power plants |
| topic | nuclear power plant instrumentation and control system digitalization field-programmable gate array |
| url | https://www.mdpi.com/2076-3417/14/6/2445 |
| work_keys_str_mv | AT ryokonishi digitalizationofpulsesignalprocessingforexcoreinstrumentationsysteminnuclearpowerplants AT makotosasano digitalizationofpulsesignalprocessingforexcoreinstrumentationsysteminnuclearpowerplants AT masateruhayashi digitalizationofpulsesignalprocessingforexcoreinstrumentationsysteminnuclearpowerplants AT tetsushiazuma digitalizationofpulsesignalprocessingforexcoreinstrumentationsysteminnuclearpowerplants |