在分散控制系统中实现突加电压保护

对于电气设备由分散控制系统(DCS)控制的发电机组,通过在DCS中修改逻辑的方法即可实现突加电压保护.经进一步分析保护定值、动作时间、防误动措施以及优、缺点,说明在DCS中实现突加电压保护是可行的,具有原理简单、实施方便、不需投资、不需改造的优点.对发变组继电保护装置已配置突加电压保护的机组,在DCS中实现突加电压保护,可以起到"双重化"的作用,在发变组继电保护装置因检修、试验等原因而退出运行时起保护作用.

Implementation of inadvertent energizing protection in distributed control system

The inadvertent energizing protection of the generation set controlled by DCS(Distributed Control System) can be implemented by logic modification.The further analysis of the protective setting,operating time,malfunction prevention measures shows its merits and demerits.It is simple in principle,easy in implementation,without additional cost and retrofitting.It can also be used as the redundant configuration for the generation set equipped with inadvertent energizing protection during the maintenance or test of protective equipment.