Distributed signal processing units for centralised substation protection and control

Data Models and Protocol Mapping for Reduced Communication Load in Substation Automation with High Sampling Rate Protection Applications

“…Hence, there are no dedicated signal processing LNs for protection purposes. Thus this paper builds on the DSPU concept proposed in [10] and derives suitable data models for the different signal processing algorithms. In addition, the paper describes the mapping of the corresponding data sets to the Generic Object Oriented Substation Event (GOOSE) protocol.…”

“…The IEEE standard about "Recommended Practice for Signal Treatment Applied to Smart Transducer" indicates that signals will be entirely processed at the point of measurement in the future [9]. This notion is picked up by [10] and is applied to the application of power system protection in substations. The paper [10] suggests to integrate the required DSP algorithms of the protection function in a dedicated device termed a distributed signal processing unit (DSPU), which publishes the results of the DSP algorithms on the process-level network instead of the raw samples.…”

“…This notion is picked up by [10] and is applied to the application of power system protection in substations. The paper [10] suggests to integrate the required DSP algorithms of the protection function in a dedicated device termed a distributed signal processing unit (DSPU), which publishes the results of the DSP algorithms on the process-level network instead of the raw samples. Thus the high communication burden as well as the increased computational demand of the centralized platform are able to be reduced.…”

IEC 61850-Based Centralized Busbar Differential Protection with Data Desynchronization Compensation

“…IEC 61850-based centralized protection has been widely studied over the past several decades [9][10][11][12][13][14][15][16][17][18][19]. Synchronization of data received from intelligent electronic devices (IEDs) located in substations is Energies 2020, 13, 967 2 of 15 essential.…”

“…The recent IEC/IEEE 61850-9-3 defined an IEEE Std 1588 Precision Time Protocol (PTP) to increase data synchronization precision [20]. The methods of [14][15][16][17][18][19] utilized this PTP to synchronize IED data precisely. However, the PTP is costly to implement and the possible jamming problem remains in its master clock.…”