基于双处理器的自动准同期装置设计

Design of automation synchronizer based on double microprocessor

电力系统运行中发电机的并网操作是一项基本的操作,它在操作准确、并网迅速的前提下,要求有极高的可靠性与稳定性来保证安全。论述了在双处理器(一个工作,另一个处于热备用的运行模式)的基础上实现的自动准同期装置,采用硬件冗余技术保证高可靠性;应用线性插值算法预测来自动捕捉合闸时机,能实现高精度、快速、可靠、平稳的并网操作。装置主要用于要求可靠性高且并网速度快、同期精度高的场合,如较大(100 MW以上)发电机的同期合闸操作,具有较好的应用前景。

Synchronization operation of generators is very essential in operation of power system. On precondition of operating correctly and paralleling in rapidly, it demands higher reliability and stability to ensure its security. This paper presents an automation synchronizer with double microprocessor one working and the other in stand-by heat. The hardware redundancy in the device can guarantee high reliability. This device also forecasts the difference of angle by adopting a linear interpolation method to grasp synchronization opportunity rapidly and reliably. The testing indicates that this device can realize synchronization operation with high-accuracy, rapidness, reliability and stability. The device will be usually applied to the situation demanding high reliability and fast synchronization operation. There is a nice application foreground in the field of the synchronization operation of heavy-duty generators.