BRC-300控制器与MFP模件在INFI90系统中兼容性应用研究

Application and Compatibility of BRC-300 Controller and MFP Module in INFI 90 System

以韶关发电厂300MW机组的分散控制系统为背景,以解决主控和副控多功能处理器(multiple function processor,MFP)模件中的1个或2个同时离线问题为目的,通过分析主控和副控MFP模件之间的通信及预制电缆,找到了造成MFP模件故障的原因。在论证BRC-300控制器与MFP模件能够兼容工作的可行性之后,将29对MFP模件中的10对故障MFP模件升级为BRC-300控制器,升级控制系统组态软件,核查BRC-300控制器组态的完整性,同时将网络处理模件的子板芯片进行升级,避免BRC-300控制器与其他MFP模件之间的数据传输中断,利用控制通道总线实现了BRC-300控制器与MFP模件之间的良好通信。通过实际运行证明了设计方案的正确性,实现了BRC-300控制器与MFP模件在INFI90系统中的兼容性,彻底解决了互为冗余的MFP模件离线问题,保证了机组安全运行。

In order to solve the problem that the primary or both the primary and the backup multiple function processor （MFP） modules were offline simultaneously in the DCS of 300 MW units in Shaoguan Power Plant,with the analysis of the communication between the primary and backup MFP modules and the prefabricated cable,the cause of MFP module fault was found.After proving the compatibility of BRC-300 controller and MFP module,10 pairs among the 29 pairs of MFP modules were promoted to BRC-300 controller;the configuration software in the control system was also promoted.Then,the integrity of BRC-300 controller configuration was checked.Meanwhile,the daughter board chip of network processing module was upgraded to avoid the interruption of data transmission between BRC-300 controller and other MFP modules.The good communication between BRC-300 controller and MFP modules could be realized by using control channel bus.Finally,the correctness of the design scheme was proved by the actual operation,thoroughly solving the offline problem of redundant MFP modules,as well as ensuring the safe operation of units.