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作者：路德才（1976- ），男，山東人，工程師，學士，現就職于北京廣利核系統工程有限公司，從事數字化儀控系統研究工作。

馬建新（1976- ），女，河北人，高級工程師，學士，現就職于北京廣利核系統工程有限公司，從事數字化儀控系統研究工作。

摘要：高溫氣冷堆（HTR-PM，以下簡稱：高溫堆）核電站的固有安全性較好，系統簡單，具有四代核電系統特征。高溫堆保護系統連續監測反應堆的狀態，在監測到反應堆狀態異常時實現緊急停堆功能和專設安全設施驅動功能。核電站運行期間，需要自診斷系統實時監視保護系統狀態，當保護系統發生異常時進行降級或停堆，同時發出報警，提醒維護人員及時處理，以免故障進一步擴大。高溫氣冷堆保護系統有其獨特的設計要求，基于和睦（FirmSys）系統的高溫氣冷堆保護系統對自診斷提出了特殊需求（如裝置狀態自診斷），在其它堆型的自診斷中未進行類似設計實現，HTR-PM保護系統結合和睦系統的特點和板卡自診斷的方案，對裝置自診斷信息先按板卡進行分解，然后再以裝置為單位進行組合，形成裝置自診斷狀態，這種自診斷信息既可以對整個裝置的信息進行顯示，使運行者一目了然地了解某個裝置的狀態，又可以進行分解，確定具體故障板卡的位置。這種特殊的自診斷方案可以推廣至其它堆型上使用。基于FirmSys系統的高溫氣冷堆保護系統自診斷方案已經應用于石島灣高溫氣冷堆保護系統。

關鍵詞：高溫氣冷堆；安全級；自診斷；I/O板卡

Abstract: The High temperature gas cooled reactor (HTR-PM) nuclear power plant has good inherent safety, simple system, high power generation efficiency and wide application, which has been widely recognized in the world. It is one of the fourth generation advanced nuclear reactor types that can meet the needs of the energy market in the future. The high-temperature reactor protection system continuously monitors the state of the reactor, and realizes the emergency shutdown function and the special safety facility driving function when the abnormal state of the reactor is detected. During the operation of the nuclear power plant, the self-diagnosis system is required to monitor the status of the protection system in real time. When the protection system is abnormal, it will be degraded or shut down. At the same time, an alarm will be issued to remind maintenance personnel to deal with it in time to avoid further expansion of the fault. The high temperature gas cooled reactor protection system has its own unique design requirements. The high temperature gas cooled reactor protection system based on Firmsys system puts forward special requirements for self-diagnosis (such as device state self-diagnosis), which is not implemented in the self-diagnosis of other reactor types. The HTR-PM protection system combines the Design of Self-Diagnosis Scheme for Protection System of HTGR Based on FirmSyscharacteristics of Firmsys system and the scheme of board selfdiagnosis, The self-diagnosis information of the device is first decomposed according to the board card, and then combined with the device as a unit to form the self-diagnosis state of the device. This self-diagnosis information can not only display the information of the whole device, so that the operator can understand the state of a device at a glance, but also can be decomposed to determine the position of the specific fault board card. This special self-diagnosis scheme can be extended to other reactor types. The self-diagnosis scheme of HTGR protection system based on Firmsys system has been applied to the protection system of HTGR in Shidao Bay.

Key words: HTGR; Safety level; Self-diagnosis; I/O board card

在線預覽：基于和睦系統的高溫氣冷堆保護系統自診斷方案設計

摘自《自動化博覽》2020年11月刊