电力系统保护与控制Issue(17)：116-121,6.
基于实时Linux的合并单元同步采样测试装置研制
Development of synchronization sampling merging unit test device based on real-time Linux
董新生 1段太钢 2周芝萍 2伍旭刚 2吴双惠 2张乔宾2
作者信息
- 1. 许继电源有限公司，河南 许昌 461000
- 2. 许继电气股份有限公司，河南 许昌 461000
- 折叠
摘要
Abstract
Synchronous sampling test contains data synchronization test and sample value accuracy test, which is one of the most important indicators of the merging unit. The status quo of the merging unit synchronous sampling test and technical difficulties are firstly analyzed, and then a specific implementation method of the merging unit synchronous sampling test device based on real-time Linux system, real-time FPGA subsystem and scalable interface signals is introduced. In order to achieve the scalability of the interface and meet the merging unit’s flexible input and output signals demand, this method uses FPGA I/O pins to construct a signal interface bus and assign FPGA pin functions through reading information saved by I2C bus EEPROM in the signal interface board. Also, this method realizes many functions like sample values receiving, time scale recording, sample values generating and transmitting, and simulating the direct communication between MII interface and the PHY in single chip FPGA. The results show that the test device can accurately reflect the synchronous sampling accuracy and data synchronization of the merging unit, so it has a strong practical value.关键词
合并单元/数据同步/采样精确度/Xenomai/实时Linux/FPGAKey words
merging unit/data synchronization/sampling precision/Xenomai/real-time Linux/FPGA分类
信息技术与安全科学引用本文复制引用
董新生,段太钢,周芝萍,伍旭刚,吴双惠,张乔宾..基于实时Linux的合并单元同步采样测试装置研制[J].电力系统保护与控制,2013,(17):116-121,6.
