intelligent direct transfer (dtt) trip over cellular...
TRANSCRIPT
![Page 1: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/1.jpg)
Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry Fix, Dominion EnergyJoseph Key, PE, Central Virginia Electric Cooperative,Andre Smit, Siemens Industry, Inc.Suraj Chanda, Siemens Industry, Inc.
External use © Siemens Industry, Inc. 2018 usa.siemens.com
![Page 2: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/2.jpg)
New Intelligent Direct Transfer Trip Using Cellular Communications
• DTT Background 4-8
• New DTT Objectives 9-12
• Dominion Pilots 13-20
• CVEC Pilot 21-27
• Contact Info 28
![Page 3: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/3.jpg)
DTT Application Background
![Page 4: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/4.jpg)
SubstationFeeder Circuit
Recloser Recloser Recloser
Direct Transfer Trip (DTT)Typical Distribution Feeder Architecture
Utility Point of Circuit Connection
Recloser
Distributed Generation Site
Recloser
![Page 5: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/5.jpg)
Direct Transfer TripWhy the need for Direct Transfer Tripping?
Substation Feeder
Utility Point of Circuit Connection
Distributed Generation Site
Feeder Breaker
Recloser Recloser Recloser
Primary Switchgear Closed Primary Switchgear Open
![Page 6: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/6.jpg)
Leased TelephoneLine Provider Network
DTTEquipment
DTT Equipment
Direct Transfer TripBackground
SubstationBreaker
Feeder Reclosers
Utility Point of Circuit Connection
Distributed Generation Site
PatchPanels
PatchPanels
Primary Switchgear Closed Primary Switchgear Open
![Page 7: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/7.jpg)
Leased TelephoneLine Provider Network
DTTEquipment
DTT Equipment
Direct Transfer TripBackground
SubstationBreaker
Feeder Reclosers
Utility Point of Circuit Connection
Distributed Generation Site
PatchPanels
PatchPanels
Primary Switchgear Closed Primary Switchgear Open
![Page 8: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/8.jpg)
Drivers for new DTT approach
1. Leased land line telephone wire networks supporting existing DTT systems unreliable causing many unwanted disconnections of DG sites.
2. Investigate and prove possible alternatives leveraging modern digital communication technologies and Substation Protection Standards
![Page 9: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/9.jpg)
Direct Transfer TripCellular Communication
LTE Modem LTE ModemLTE ModemDTT Controller
DTT Controller
DTT Controller
DTT Private Cellular Network
AMI Private Cellular Network
Public Cellular Mobile Network
Performed Penetration Testing
Peer to Peer links through IPsec Tunnels
![Page 10: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/10.jpg)
Direct Transfer Trip Security
Cellular Network
DTT Device Private Network
Peer to Peer Encrypted VPN Tunnel“Digital Wires”
Antenna
RX1400 Cellular Modem/Router
7SC80 DTT Controller
Recloser
Control
DTT Cabinet
Hard Wire Or GOOSE
![Page 11: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/11.jpg)
DTT Project Considerations and Requirements
Communication Systems Considered Fiber – Deployment time frame Cellular – Reliable, fast and easy
to deploy
Communication Protocols DTT – Peer to Peer
IEC61850”GOOSE” Control - Substation RTU – DNP3
Solar
Substation
![Page 12: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/12.jpg)
Pilot Project
![Page 13: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/13.jpg)
Direct Transfer TripPilot Project
Leased TelephoneLine Provider Network
DTT Equipment
PatchPanels
Patch Panels
DTTEquipment
Private Cellular Network
Utility Point of Circuit Connection
Distributed Generation Site
Substation
![Page 14: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/14.jpg)
Direct Transfer TripPilot Project
Leased TelephoneLine Provider Network
DTT Equipment
PatchPanels
PatchPanels
DTTEquipment
Private Cellular Network
Utility Point of Circuit Connection
Distributed Generation Site
Primary Switchgear Closed Primary Switchgear Open
![Page 15: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/15.jpg)
Direct Transfer TripPilot Project
DTT system objectives:
1. Maintain Utility Connection to Distributed Energy Site.
• Temporary loss of communication• Provide Anomaly Detection Protection• Provide true redundant communication capability
2. Provide Event and Fault Reports to operators1. All DTT devices aware of all feeder circuit primary switch
statuses
3. Ensure system is interoperable and future proof• IEC61850 Standard
![Page 16: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/16.jpg)
Direct Transfer TripPilot Project
Leased TelephoneLine Provider Network
DTT Equipment
PatchPanels
PatchPanels
DTTEquipment
Private Cellular Network
Utility Point of Circuit Connection
Distributed Generation Site
7SC80 DTT Controller
RX1400 Cellular Modem / Router
∆Pf∆V∆P∆I
Primary Switchgear Closed Primary Switchgear Open
![Page 17: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/17.jpg)
Direct Transfer Trip2nd Pilot Project
Private Cellular Network
Utility Point of Circuit Connection
Distributed Generation Site
Fiber Optic Provider Network
Primary Switchgear Closed Primary Switchgear Open
![Page 18: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/18.jpg)
Direct Transfer Trip Redundant Communication
7SC80 DTT Controller• Anomaly Detection
• Redundant Logic• DTT Permissive
RX1400 Cellular Modem / Router
7SC80 DTT Controller• Redundant Logic• DTT Permissive
RX1400 Cellular Modem / Router
7SC80 DTT Controller• Redundant Logic• DTT Permissive• Simulation Test
RX1400 Cellular Modem / Router
CellularCellularCellular
Fiber
Fiber FiberFiberFiberFiber
Substation Line Recloser DG PCC
![Page 19: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/19.jpg)
DTT Project
![Page 20: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/20.jpg)
Drivers for new DTT approach
DTT Project
Two new Solar Sites connected into CVEC grid
Dominion Energy Required DTT from delivery point to CVEC
Cost and speed of deployment (Large Geographical area)
![Page 21: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/21.jpg)
DTT Project Considerations and Requirements
Communication Systems Considered Fiber – Installed cost
prohibitive (27 miles) Leased phone lines - Cost high,
unreliable Cellular – Installed Cost Low ,
ReliableCommunication Protocol
DTT – Peer to Peer IEC61850”GOOSE” SCADA – DNP3
CVEC Transmission
Martin Solar
Palmer Solar
Columbia Delivery Point
![Page 22: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/22.jpg)
Distribution Substation
Distribution Substation
Distribution Substation
CircuitBreaker
CircuitBreaker
CircuitBreaker
Solar Site
Transmission Delivery PointSubstation
CircuitBreaker
Direct Transfer TripProject
Transmission Feeders
Dist
ribut
ion
Fee
der
Recloser
Solar Site
Dist
ribut
ion
Fee
der
Recloser
Dist
ribut
ion
Fee
der
![Page 23: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/23.jpg)
Direct Transfer TripProject
Transmission Delivery PointSubstation
Transmission Feeders
Distribution Substation
Distribution Substation
Distribution Substation
Dist
ribut
ion
Fee
der
CircuitBreaker
CircuitBreaker
CircuitBreaker
CircuitBreaker
Recloser Recloser
Solar Site Solar Site
Dist
ribut
ion
Fee
der
Dist
ribut
ion
Fee
der
![Page 24: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/24.jpg)
Direct Transfer TripProject
Transmission Delivery PointSubstation
Transmission Feeders
Distribution Substation
Distribution Substation
Distribution Substation
Dist
ribut
ion
Fee
der
CircuitBreaker
CircuitBreaker
CircuitBreaker
CircuitBreaker
Recloser Recloser
Solar Site Solar Site
Dist
ribut
ion
Fee
der
Dist
ribut
ion
Fee
der
![Page 25: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/25.jpg)
Direct Transfer TripProject
Transmission Delivery PointSubstation
Transmission Feeders
Distribution Substation
Distribution Substation
Distribution Substation
Dist
ribut
ion
Fee
der
CircuitBreaker
CircuitBreaker
CircuitBreaker
CircuitBreaker
Recloser Recloser
Solar Site Solar Site
Dist
ribut
ion
Fee
der
Dist
ribut
ion
Fee
der
![Page 26: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/26.jpg)
Solar Site
Direct Transfer TripProject
Solar Site
Cellular Network
![Page 27: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/27.jpg)
DTT Implementation at DG and Reclosers
Recloser Control DTT Cabinet
Cellular Antenna
GPS Antenna
Interconnect Wiring
![Page 28: Intelligent Direct Transfer (DTT) Trip Over Cellular ...prorelay.tamu.edu/wp-content/uploads/sites/3/2019/...Intelligent Direct Transfer (DTT) Trip Over Cellular Communications Terry](https://reader033.vdocuments.site/reader033/viewer/2022053013/5f1023bf7e708231d447a496/html5/thumbnails/28.jpg)
Terry L. FixProtective Relay Systems ConsultantElectric Transmission Operations Engineering Support
2400 Grayland Avenue, Richmond, Va.
Phone: (804) 257-4623E-mail:[email protected]
Questions