电测与仪表Issue(7)：40-45,6.
模拟量合并单元暂态时间特性测试技术研究
Technology of time characteristic testing of analog quantity merging unit in transient state
舒展 1汤汉松 2谢国强 1刘见1
作者信息
- 1. 国网江西省电力科学研究院，南昌330000
- 2. 江苏凌创电气自动化股份有限公司，江苏镇江212009
- 折叠
摘要
Abstract
This paper studied on the differentiation between analog quantity merging unit in transient delay and steady delay, and discussed the transmission delay problem of the merging unit in transient state from the view of relay pro -tection.The difference between transient delay and steady delay was explained , as well as the necessity test in engi-neering .A test scheme based on precise control in discrete time was proposed .The digital phase locked loop ( DPLL) was used to eliminate the digital timing jitter , the mutation detecting was used to determine the initial time .Then com-bining with the phase extraction for time delay compensation , this scheme can eliminate various error factors in the test to measure the effect of abnormal time characteristic on the composite error by utilizing synchronizing signal abnormity and changes of message dispersion as triggering condition .The application of the developed test system in engineering has proved the feasibility of the scheme .关键词
模拟量输入合并单元/暂态时间特性/突变量检测/相位补偿修正/DPLL/复合误差Key words
analog input merging unit/transient state time characteristic/mutation detection/phase compensation/DPLL/composite-error分类
信息技术与安全科学引用本文复制引用
舒展,汤汉松,谢国强,刘见..模拟量合并单元暂态时间特性测试技术研究[J].电测与仪表,2015,(7):40-45,6.
