基于暂态故障信息的多功能一体化智能电子设备

Multifunctional integrated IED based on transient fault information

提出一种基于暂态故障信息的集成输电线路保护、测距、录波和测控等多种功能的智能电子设备。硬件方案采用多CPU分布式结构,主要包括以下模块:过程层通信模块、保护模块、测距录波模块、测控模块、站控层通信模块和人机接口模块。暂态故障信息的利用主要体现在保护模块和测距录波模块中,详细介绍了暂态故障信息的利用方法。为了满足智能变电站发展的要求,采用了一些关键技术。该多功能一体化智能电子设备适用于现有的智能变电站,能够提高保护性能和测距精度,降低设备成本和运行维护费用。

A transient fault information based IED integrating protection, fault location, fault record, measurement and control functions for transmission line is proposed. IED hardware scheme adopts multiple CPU distributed structure, and includes mainly the following modules： process level communication module, protection module, fault location and record module, measurement and control module, station level communication module and a MMI module. Transient fault information utilization is illustrated in detail, which is mainly reflected in the protection module and the fault location and record module. Some key techniques are used to meet the smart substation development requirements. The multifunctional integrated IED can be applied in the existing smart substations, which can improve protection performance and fault location precision, and reduce equipment cost and operation and maintenance cost.