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© 2017 Electric Power Research Institute, Inc. All rights reserved.
Ed BerosetEPRI
Minnesota Power Systems Conference
November 8th, 2017
Metering Communications
Interoperability: Are we there yet?
2© 2017 Electric Power Research Institute, Inc. All rights reserved.
True or False
Expectation
• I expected to connect with the hotel WiFi
Action
• I was able to connect with the hotel WiFi
Result
• I was on connected within a few minutes
3© 2017 Electric Power Research Institute, Inc. All rights reserved.
Communications 101
Application• Application• Presentation• Session
Transport • Transport• Network
Datalink • Datalink• Physical
4© 2017 Electric Power Research Institute, Inc. All rights reserved.
Communications 102
Me
X2
WiFi Ethernet
Fibermodem
GbitEthernet
SM Fiber
MyISP
SM Fiber …
You
Your ISP
… DocSis
Cable modem
DocSis Ethernet
X2
Ethernet WiFi
5© 2017 Electric Power Research Institute, Inc. All rights reserved.
AMI Reference Network
3rd P
arty
Net
wor
k
Ent
erpr
ise
Ser
vice
Bus
DAP: (Collector / Base Station)
MDMS
AMI Head-End
Meter
CSSCustomer
Service System
Single Phase Meter
AMI Head-End Information
MDMS
Customer Service System
Commercial Meter
DAP (Collector) Information
Applications
Private Back Haul
Internet
LAN
Single Phase Meter
Commercial Meter
Cellular Carrier Network
DAP: (Collector /
Base Station)
Single Phase Meter
Private RF Networks
PLC NetworkPrivate Back Haul
Public
Car
rier B
ackh
aul
Publ
ic Ca
rrier
Bac
khau
l
Single Phase Meter Meter to
BroadbandInternet
Meter to PublicCellular
Dashboard
Meter Access Network Backhaul Network
On-SiteNetwork
Enterprise Integration
2
3
4
5
9
8
7
10
11 12
Generic AMI Reference Architecture
14
NetworkMGMT
15
17
16
13
6
OMSOutage
ManagementSystem
18
NAN Router
1
(RF Mesh)
(Private Cellular)
7© 2017 Electric Power Research Institute, Inc. All rights reserved.
Theoretical AMI Standard Network
Meter Access Point AMI Head End
ANSI C12.22 or DLMS/COSEM
TCP/IPv6
WiSUN
TCP/IPv4
WiSUN G3 PLC 4G LTE fiber Ethernet
8© 2017 Electric Power Research Institute, Inc. All rights reserved.
Actual AMI Network brand X
Meter Access Point AMI Head End
ANSI C12.18
5v serial
TCP/IPv6
Ethernet
ANSI C12.18
proprietary
proprietary
proprietary
proprietary
proprietary
9© 2017 Electric Power Research Institute, Inc. All rights reserved.
Actual AMI Network brand Y
Meter Access Point AMI Head End
ANSI C12.18
5v serial
TCP/IPv4
Ethernet
ANSI C12.18
ANSI C12.22
UDP/IPv4
proprietary
proprietary
4G LTE
10© 2017 Electric Power Research Institute, Inc. All rights reserved.
Variety is the spice of life?
11© 2017 Electric Power Research Institute, Inc. All rights reserved.
EPRI’s Advanced Metering Research Program
Collaborative research to maximize the value, minimize the risks, and expand the future potential of advanced metering systems.
Research drivers:– The changing landscape of available systems,
technologies, and standards
– Diverse and evolving regulatory expectations
– New AMI system uses and value streams
– Network ownership and associated organizational and operational challenges
– Questions regarding solid state meter performance and reliability
Open, Interoperable AMI systems
Established Best Practices for AMI O&M
Optimized AMI System and Data Utilization
Areas of Research in the AMI Program
Meters and Devices
Direct participation in standards groups on your behalf. Open reference Wi-Sun protocol. Interop events. Interoperability test tools.
Collecting, documenting, and organizing AMI use cases. Tracking AMI system deployments and uses. Establishment of the online AMI resource center.
Coordinating with AMI operations groups. Best practices developed for: AMI prognostics and health management, revenue protection, many other needs identified.
Solid state meter laboratory evaluations. Over-voltage, DC saturation, hot socket detection/response, impact of solar inverters.
13© 2017 Electric Power Research Institute, Inc. All rights reserved.
What is the Wi-SUN Alliance?
The WiSUN alliance is attempting to do for IEEE 802.15.4g what
The WiFi Alliance has done for IEEE 802.11
14© 2017 Electric Power Research Institute, Inc. All rights reserved.
Why does this matter?
Standardized communications leads to– Interoperability among devices– Simplified inventory and training– Avoidance of vendor lock in– Reduced costs for utilities and the public– Improved operations due to consistency and simplicity– Improved security and privacy by consistent security
model– Simplified procurement due to standardization
Wi-SUN Communications
• What is it?• Radio frequency (RF) communications for meters and
more• Frequency hopping, spread spectrum mesh in ISM band• Based on existing recent standards:
• IEEE 802.15.4g• IETF roll• IETF 6lowpan
Standards & Interoperability
Wi-SUN Communications Test and Diagnostic Tool
EPRI Wi-Sun Interface Hardware
EthernetDevice Under
Evaluation
User Interface
Wi-Sun Test Tool
How will you determine whether or not vendor products are actually adhering to the standard?
EPRI is working both:
• open source Wi-SUN stack implementation
• open source Wi-SUN diagnostic tool
17© 2017 Electric Power Research Institute, Inc. All rights reserved.
EPRI Wi-SUN Diagnostic Tool
Custom RF Test tool
• Based on inexpensive parts
• Uses EPRI Wi-SUN stack
• All open source software
18© 2017 Electric Power Research Institute, Inc. All rights reserved.
Web based interface
19© 2017 Electric Power Research Institute, Inc. All rights reserved.
Next steps
Working with Wi-SUN Alliance on– Refining standardized test specification– Clarifying and fixing the standard where needed– Assuring that security remains strong
Other tools– Wireshark-based “sniffer” for Wi-SUN RF packets– Computer based simulation for networks
20© 2017 Electric Power Research Institute, Inc. All rights reserved.
Closing Comments, Questions, Recommendations?
21© 2017 Electric Power Research Institute, Inc. All rights reserved.
Together…Shaping the Future of Electricity