核测量系统采用标准输出信号的接口问题处理

New Interface Issues of Nuclear Reactor Neutron Flux Measurement System Using Unified Standard Signal

核测量系统采用标准输出信号后,采用自动换档电流放大器的功率测量装置在档位切换时,输出信号有效值与量程的同步性可能出现问题,使保护系统、功率控制系统和报警系统信号接收端产生误动作。本工作对分析接口问题产生的原因进行分析,并提出解决办法。

When nuclear reactor control and protection system uses a unified standard electrical analog signal （4-20 mA）as an exchange signal, there exist problems of synchronization between the virtual value and range of output signals during switching of Neutron Flux Measurement System （NFMS） , and thus false actions occur in the protection system, the alarm system and the power control system. The cause of these new interface issues were described in this paper, and one solution for this problem was given in detail.