metering communications interoperability: are we … · metering communications interoperability:...

© 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


Communications 101

Application• Application• Presentation• Session

Transport • Transport• Network

Datalink • Datalink• Physical


Communications 102

Me

X2

WiFi Ethernet

Fibermodem

GbitEthernet

SM Fiber

MyISP

SM Fiber …

You

Your ISP

… DocSis

Cable modem

DocSis Ethernet

X2

Ethernet WiFi


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)


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


Actual AMI Network brand X


ANSI C12.18

5v serial

TCP/IPv6

Ethernet

ANSI C12.18

proprietary

proprietary

proprietary

proprietary

proprietary


Actual AMI Network brand Y


ANSI C12.18

5v serial

TCP/IPv4

Ethernet

ANSI C12.18

ANSI C12.22

UDP/IPv4

proprietary

proprietary

4G LTE


Variety is the spice of life?


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.


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


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


EPRI Wi-SUN Diagnostic Tool

Custom RF Test tool

• Based on inexpensive parts

• Uses EPRI Wi-SUN stack

• All open source software


Web based interface


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


Closing Comments, Questions, Recommendations?


Together…Shaping the Future of Electricity

metering communications interoperability: are we … · metering communications interoperability:...

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