摘要
为满足微机保护变电站培训仿真系统的需要,专门设计了一种基于ARM的连接实物平台和仿真平台的接口交换装置。该装置采用μC/O S-Ⅱ实时操作系统,具有32路开入、16路开出、6路模出、1个以太网接口、2个微机保护面板接口。为使以太网数据通信通道的畅通,在分析开入流、开出流、模出流、保护流特点的基础上,提出了减少信息交换次数和压缩数据内容长度的多种方法。由多台接口交换装置组成的分布式信息交换网已在110/35/6 kV微机保护变电站培训仿真系统中得到应用。实践证明,接口交换装置运行可靠,实物平台的状态在20 m s内和仿真机内部信息一致。
To meet the requirement of training simulation system for microprocessor-based protection substation, an interface switcher connecting full-scale platform with simulation platform is designed in this paper based on ARM. μC/OS-Ⅱ RTOS is adopted in the design including an Ethernet interface,two interfaces of microprocessor-based protection control panel, 32-channel digital input, 16-channel digital output and 6- channel analog output. After analyzing the characteristics of input/output signals and protection signals, methods for reducing information exchange and compressing the data are put forward to expedite Ethernet channel. The distributed information exchange network composed by interface switchers has been employed successfully in the training simulation system for 110/35/6 kV microprocessor-based protection substations. It shows that the interface switcher is reliable, and its validity has been proved compared with full-scale platform in the scale of 20ms.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2006年第6期91-95,共5页
Proceedings of the CSU-EPSA
关键词
培训仿真
微机保护
经典指令集计算机
信息交换
training simulation
microprocessor-based protection
advanced reduced instruction set computing machines（ARM）
information exchange
