Scott Neumann - UCAIug
Transcript of Scott Neumann - UCAIug
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Integration of Metering Systems
Scott NeumannCTO, UISOL
Chairman, USNC IEC TC57
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IEC 61968-9
• New international standard for the integration of metering systems being drafted by IEC TC57 WG14
• Extends the 61968 package of the IEC Common Information (CIM), where the core CIM is defined by IEC 61970-301
• Integration defined using XML messages as defined through XML Schema
• Messages have a header and a payload– Header identifies a noun and a verb– Payload uses CIM-derived type definitions
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IEC 61968-9
• Details of the meter and communication between meter and AMR system are outside the scope of the 61968-9
• Meter modeled to identify general capabilities, as opposed to details of implementation (e.g. registers, protocols, …)
• AMR system can provide events for other systems• AMR system collects meter readings• Other systems may issue requests to AMR systems• A variety of business processes may involve the meter, but
may or may not involve the AMR system
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Actors
• Customer• Meter• Meter Technician• Energy Supplier• AMR System• Meter Reader
• Meter Data Manager• Asset Managers• Planner• Forecaster• System Operator• Outage Management System• Customer Billing System
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Use CasesExisting 61968 Use Cases:• Outage Analysis• Trouble Reporting• Identify Outage Extent• Outage Restoration• Restoration Verification• Meter Disconnect and Reconnect• Billing• Settlements• Verify delivery Action
• Meter Installation and Removal• Meter Configuration• Meter Reading• Meter Read Request• Outage Detection• Power Quality Event Handling• Meter Health and Tamper Detection• Demand Response• Load Control• Real-Time Pricing• Billing Inquiry• Model Synchronization• Get Historical Load Data• Customer Switching
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Issues Specific to AMR
• A wide variety of communication mechanisms are used between the meter and the AMR system
• In cases where information can be requested from a meter, the reply must be processed asynchronously due to the latencies involved
• Large volumes of data (e.g. ~102 meter reads per day from ~ 106
meters for a period of ~ 103 days results in typically more than 100 billion values)
• More than one AMR system and associated meter technology may be used by a utility
• A variety of integration infrastructures and applications are used within utilities
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Integration of AMR
Net
wor
k Ev
ents
Met
er S
ervi
ce re
ques
ts
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Message Types
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CIM AMR-Related Modeling
• CustomerMeter is a CIM PowerSystemResource• CustomerMeter is located at a ServiceLocation• A Customer may have one or more CustomerAccount• CustomerAccount may have one or more CustomerMeters• CustomerMeter may have associated ActivityRecords• CustomerMeter is associated with a PowerTransformer• CustomerMeter realized by a MeterAsset and optionally an
AmrModule• AmrModule has a set of capabilities related to collection of
measurements, sending of measurements and controls• AmrModule may belong to one or more MeterGroups• One or more Measurements are defined for each AmrModule
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Meter Readings• Meter readings are sets of CIM MeasurementValues• There are a variety of quantities that can be captured, depending upon
AMR technology and associated configuration• The most commonly recorded data items include
– kWh usage– kW peak demand– Event counts for momentary and/or sustained outages
• Additional data items that are sometimes recorded include – Real and/or reactive demand (i.e. kW, kVA or KVAR) – TOU tiers– Voltage
• There are also specific events that can be captured, including but not limited to:
– Sustained outage reports– Tamper detection
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IEC 61968 Messages
• Message has header, with optional request, reply and payload sections• Header includes information such as a verb, noun, timestamps, revision,
source, replyAddress, …• Supports request/reply, publish/subscribe and point-to-point messaging
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Message Payload Types (Nouns)
• CustomerMeterDataSet• MeterReadings• MeterConfiguration• MeterControl• MeterEvent• MeterVerification
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Demand Response: DRBizNet
EnergyCustomer
DR Service Provider
DRCollaboration
Exchange
ISO
DR CommunityUtility
DR Aggregator
Regulator MarketMonitor
EnergyCustomer
DR Service Provider
DRCollaboration
Exchange
ISO
DR CommunityUtility
DR Aggregator
Regulator MarketMonitor
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References
• CIM User site: http://cimuser.org• UISOL site: http://uisol.com