Assessment and Commissioning of Electrical Substation Grid Testbed with a Real-Time Simulator and Protective Relays/Power Meters in the Loop | Chapter 5| Science and Technology: Developments and Applications Vol. 10

Electrical utility substations are wired with intelligent electronic devices (IEDs), such as protective relays, power meters, and communication switches. Substation engineers commission these IEDs to assess the appropriate measurements for monitoring, control, power system protection, and communication applications. Like real electrical utility substations, complex electrical substation grid testbeds (ESGTs) need to be assessed for measuring current and voltage signals in monitoring, power system protection, control (synchro check), and communication applications that are limited by small-measurement percentage errors. In the process of setting an ESGT with real-time simulators and IEDs in the loop, protective relays, power meters, and communication devices must be commissioned before running experiments. In this study, an ESGT with IEDs and distributed ledger technology was developed. The ESGT with a real-time simulator and IEDs in the loop was satisfactorily assessed and commissioned. The commissioning and problem-solving tasks of the testbed are described to define a method with flowcharts to assess possible troubleshooting in ESGTs. This method was based on comparing the simulations versus IED measurements for the phase current and voltage magnitudes, three-phase phasor diagrams, breaker states, protective relay times with selectivity coordination at electrical faults, communication data points, and time-stamp sources.

 

Author (s) Details

Emilio C. Piesciorovsky
Oak Ridge National Laboratory, Electrification and Energy Infrastructures Division, Oak Ridge, TN 37831, USA.

 

Raymond Borges Hink
Oak Ridge National Laboratory, Electrification and Energy Infrastructures Division, Oak Ridge, TN 37831, USA.

 

Aaron Werth
Oak Ridge National Laboratory, Cyber Resilience and Intelligence Division, Oak Ridge, TN 37831, USA.

 

Gary Hahn

Oak Ridge National Laboratory, Electrification and Energy Infrastructures Division, Oak Ridge, TN 37831, USA.

 

Annabelle Lee
Nevermore Security LLC, 31256 Stone Canyon Rd, Evergreen, CO 80439, USA.

 

Yarom Polsky
Oak Ridge National Laboratory, Manufacturing Science Division, One Bethel Valley Rd, Oak Ridge, TN 37830, USA.

 

Please see the book here:-  https://doi.org/10.9734/bpi/stda/v10/5201

Electrical Fault and Power Quality Detection Algorithms and Customer-Owned DERs Monitoring with a Cyber Grid Guard System and DLT | Chapter 4 | Current Perspective to Physical Science Research Vol. 9

 In this study, the electrical fault and power quality detection algorithms and customer-owned DERs monitoring use cases were implemented, with a Cyber Grid Guard system and DLT. Electrical utilities continue to deploy more intelligent electronic devices (IEDs) inside and outside electrical substations, and are associated with customer-owned distributed energy resources (DERs). Data from these IEDs, such as power meters and protection relays, must be kept confidential and of high integrity. Blockchain technology has the potential to increase microgrid resilience by enhancing data sharing security. The growing use of IEDs and customer-owned renewable energy sources (DERs) may make it necessary to connect Distributed Ledger Technology (DLT) with power system applications. We implemented the electrical faulted phase detection and power quality monitoring algorithms with a Cyber Grid Guard (CGG) system using DLT. In addition, the DERs (wind turbine farms) use case and protective relay cyber-event tests were assessed, by using the CGG system with DLT. In the experimental model, the testbed was created by using a real-time simulator and CGG system with power meters/ protective relays in the loop. The data collected from the CGG system and IEDs were compared with the same time stamp source. These results showed the successful assessment of protection, control and monitoring applications using a CGG system with DLT. In the future, power system applications for the ESGT with DERs and the CGG system will be based on executing smart contracts between electrical utilities and customer-owned DERs.

Author(s) Details:

Emilio C. Piesciorovsky,
Electrification and Energy Infrastructures Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, TN 37831, USA.

Gary Hahn
Electrification and Energy Infrastructures Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, TN 37831, USA.


Raymond Borges Hink
Electrification and Energy Infrastructures Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, TN 37831, USA.

Aaron Werth

Cyber Resilience and Intelligence Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, TN 37831, USA.

Annabelle Lee
Nevermore Security LLC, 31256 Stone Canyon Rd, Evergreen, CO 80439, USA.

Please see the link here: https://stm.bookpi.org/STRUFP-V1/article/view/14326