IEC61850协议-在工业设施中的实际应用

C. Wester, M. Adamiak, J. Vico
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引用次数: 26

摘要

自1997年以来,一个定义协议的新标准一直在发展,称为IEC61850。当使用以太网网络时,该标准可以实现几个工业优势,例如周期内和不同供应商之间的高速设备对设备通信(即数字和模拟值的点对点通信),模拟信号的高速处理以及通用数据库命名格式和结构。本文将回顾IEC61850协议的基本原理,包括网络要求。讨论了IEC61850协议的三种实际应用,即区域联锁保护方案、主母线切换方案和减载方案。总线区域联锁方案,是IEC61850 GOOSE消息传递的有效应用。在该方案中,主继电器采用定时过流元件,馈线继电器采用定时过流元件。根据从馈线继电器中确定的故障位置,允许主继电器选择性地跳闸或阻塞。主母线转接是工业设施中常见的应用。电压主干线-母线转换是工业设施中非常常见的一种转换方案。主-主自动总线传输可以使用两个保护继电器和IEC61850 GOOSE消息传递。快速减载(FLS)方案在大型工业设施中快速减载,以响应一个或多个输入源的损失,以避免系统完全崩溃,同时尽可能多地维持过程的供应。与欠压、低频或频率衰减减载方案不同,快速减载方案可以在系统频率/电压下降之前启动减载,这在许多情况下对维持系统稳定性至关重要。快速卸荷方案采用IEC61850 GOOSE通信,以非常高的速度从大量终端设备收集负载和输入源功率信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
IEC61850 protocol - practical applications in industrial facilities
A new standard, defining protocols has been evolving since 1997, called IEC61850. This standard enables several industrial benefits when using an Ethernet network, such as high speed device-to-device communications (i.e. peer-to-peer communications both digital and analog values) within cycles and between different vendors, high-speed processing of analog signals and a common database naming format and structure. This paper will review the fundamentals of IEC61850 protocol including network requirements. It will also discuss three practical applications of IEC61850 protocol such as zone interlocking protection scheme, main-tie-main bus transfer scheme and load shedding scheme. Bus zone interlocking scheme, is an efficient application of IEC61850 GOOSE messaging. In this scheme, the main relay will use definite time overcurrent element and the feeder relay will use time overcurrent element. The main relay selectively is allowed to trip or block depending on location of faults as identified from feeder relays. Main-Tie-Main bus transfer is a common application in industrial facilities. Voltage Main-Tie-Main bus transfer is a very common transfer scheme within industrial facilities. Main-tie-main automatic bus transfer can be applied using two protective relays and IEC61850 GOOSE messaging. A fast load shedding (FLS) scheme rapidly sheds load in a large industrial facility in response to loss of one or more incoming sources in order to avoid complete system collapse while maintaining supply to as much of the process as practical. Unlike undervoltage, underfrequency, or rate of frequency decay load shedding schemes, the fast load shedding scheme can initiate load shedding before the system frequency/voltage declines, which in many cases is essential for maintaining system stability. The fast load shed scheme uses IEC61850 GOOSE communications to collect load and incoming source power information from a very large number of end units at very high speed.
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