Metering Communications Interoperability: Are we there yet?
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1 Metering Communications Interoperability: Are we there yet? Ed Beroset EPRI Minnesota Power Systems Conference November 8th, 2017
2 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 2
3 Communications 101 Application Transport Datalink Application Presentation Session Transport Network Datalink Physical 3
4 Communications 102 Me You X2 Fiber modem My ISP Your ISP Cable modem X2 WiFi Ethernet Gbit Ethernet SM Fiber SM Fiber DocSis DocSis Ethernet Ethernet WiFi 4
5 AMI Reference Network Meter Single Phase Meter Commercial Meter Single Phase Meter Single Phase Meter Single Phase Meter Commercial Meter Meter Access Network 1 Private RF Networks Meter to Public Cellular rd Party Network NAN Router (RF Mesh) PLC Network Meter to Broadband Internet (Private Cellular) On-Site Network Cellular Carrier Network DAP: (Collector / Base Station) 9 8 Public Carrier Backhaul Public Carrier Backhaul 6 Generic AMI Reference Architecture Backhaul Network DAP: (Collector / Base Station) 4 Internet DAP (Collector) Information 7 Private Back Haul Private Back Haul LAN AMI Head-End Information AMI Head-End 12 MDMS Dashboard Applications Network MGMT MDMS 16 Enterprise Integration Enterprise Service Bus Customer Service System OMS Outage Management System CSS Customer Service System 5
6 Theoretical AMI Standard Network Meter Access Point AMI Head End ANSI C12.22 or DLMS/COSEM TCP/IPv6 TCP/IPv4 WiSUN WiSUN G3 PLC 4G LTE fiber Ethernet 7
7 Actual AMI Network brand X Meter Access Point AMI Head End ANSI C12.18 proprietary proprietary ANSI C12.18 proprietary TCP/IPv6 5v serial proprietary proprietary Ethernet 8
8 Actual AMI Network brand Y Meter Access Point AMI Head End ANSI C12.18 ANSI C12.22 proprietary ANSI C12.18 UDP/IPv4 TCP/IPv4 5v serial proprietary 4G LTE Ethernet 9
9 Variety is the spice of life? 10
10 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 11
11 Areas of Research in the AMI Program Open, Interoperable AMI systems Direct participation in standards groups on your behalf. Open reference Wi-Sun protocol. Interop events. Interoperability test tools. Optimized AMI System and Data Utilization Established Best Practices for AMI O&M 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. Meters and Devices Solid state meter laboratory evaluations. Over-voltage, DC saturation, hot socket detection/response, impact of solar inverters.
12 What is the Wi-SUN Alliance? The WiSUN alliance is attempting to do for IEEE g what The WiFi Alliance has done for IEEE
13 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 14
14 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 g IETF roll IETF 6lowpan
15 Wi-SUN Communications Test and Diagnostic Tool Standards & Interoperability How will you determine whether or not vendor products are actually adhering to the standard? Wi-Sun Test Tool Device Under Evaluation EPRI Wi-Sun Interface Hardware Ethernet User Interface EPRI is working both: open source Wi-SUN stack implementation open source Wi-SUN diagnostic tool
16 EPRI Wi-SUN Diagnostic Tool Custom RF Test tool Based on inexpensive parts Uses EPRI Wi-SUN stack All open source software 17
17 Web based interface 18
18 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 19
19 Closing Comments, Questions, Recommendations? 20
20 Together Shaping the Future of Electricity 21
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