Merging units widely used in domestic smart substations generally adopt a sampling frequency of 4 kHz,which can meet the needs of bay level protection and measurement.Sampling frequencies of 12.8 kHz or higher are also needed owing to monitoring scenarios such as power quality or PMU.This paper proposes a scheme for transmitting multisam-pling-frequency data through a single port by using one merging unit device to meet the needs of different sampling scenar-ios of substations.Tests have shown that the proposed scheme is suitable for networking system with low requirements for frame spacing and delay,and facilitates reduction of sampling devices,and improvement of sampling data sharing.
关键词
多采样频率/共口输出/数据共享
Key words
multi-sampling-frequency/common port output/data sharing
维普
万方数据