Design and Implementation of Multi-sampling-frequency Merging Unit
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.
multi-sampling-frequencycommon port outputdata sharing
万方数据
维普
