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Al Hefner (NIST Lead)
Frances Cleveland (Technical Champion)
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•PAP 7 Overview•Status of IEC 61850-7-420 and IEEE 1547.8 •Identify new issues for PAP 7•Update the Scoping Document •Develop a White Paper based on Scoping Document
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PAP 7: Task Interactions
3
Task 2: IEEE 1547.4 for island applications and IEEE 1547.6 for secondary networks
PAPs
MIC
Task 4: Develop and Harmonize Object Models
IEC 61850-7-420: Expanded to include Multifunctional ES-DER operational interface;
Harmonized with CIM & MultiSpeak;Mapped to MMS, DNP3, web services, & SEP v2
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PAP 7 Scope - Energy Storage and Distributed Energy Resources
•Develop Scoping Study on Energy Storage and Distributed Energy Resources
•Complete IEEE 1547.4 and .6•Initiate IEEE 1547.8 on electrical connectivity of ES-DER
allowing low-voltage ride-through, microgrids, and other ES-DER management
•Develop Use Cases for ES-DER•Develop information exchange requirements to submit to
IEC TC57 WG17•Monitor IEEE 1547.8 and IEC TC57 WG17
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DER (Generation and Storage) Cost Justification
• DERs will provide:• Energy (real power) from generators and from storage units• Reactive power support (volt/var support) to both
distribution and transmission efficiency and stability• Combined generation and storage can provide rapid
response to mitigate intermittent renewable resources like wind and solar
• Low voltage ride-through, emergency reserves, harmonic-damping
• Rapid response to frequency deviations
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Different DER Interactions: Direct Control, Interactive Requests, Broadcast/Multicast
DER Integrated System
DER Generator
DER Storage
Controller
Controller
DER Energy Management System
at Utility Site or Customer Site
Utility/ESP DER Management System
Distributed Energy Resources (DER) Site
One-way Broadcast/Multicast
Loosely-coupled Two-way Interactive
Requests
Tightly-coupled Direct Control
Tightly-coupled Direct Control
DER Management: Interactions between Components
Loosely-coupled Two-way Interactive
Requests
Loosely-coupled Two-way Interactive
Requests
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DER Key Use Cases Must Cope with Many Different Configurations• DER will be managed:
• By customers for their own exclusive use• Through direct control by utilities or aggregators• Through market-driven bids, with direct control by utilities• Through market-driven, tariff-based demand response
• Direct, tightly-coupled control• Between inverter controller and ES-DER device• Between Customer EMS and multiple ES-DER devices in a building,
subdivision, or campus• Interactive two-way monitoring and control
• Between ISO/RTO and ES-DER system whose bid has been accepted• Between Customer EMS and multiple ES-DER systems with their own
(sophisticated) controllers• Broadcast/multicast one-way “pricing” or “request” signals
• Between utility and Customer EMS• Between aggregator and ES-DER systems
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PV/Storage Inverter-based System Phase 1 Functions and Interactions
Phase 1 Functions• Connect/Disconnect from grid• Limit maximum generation• Set power factor • Var settings, based on voltage• Var settings, based on watts• Storage charge / discharge rate (fast
PEV chargers??)• “Pricing” signal • Event / history logging• State / status reporting• Time synchronization
Interaction• Direct command• Immediate request• Change settings• Schedule of settings based on
time• Schedule of settings based on
temperaturePhase 2 Functions• Low voltage ride-through!!• Counteracting frequency
deviation • Other
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One PV/Storage Inverter Mode
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IEC 61850-7-420 for DER• IEC 61850 – Interface Standard of Object Models for Utility Industry
• Very modular• Establishes “well-known” standardized names, data formats, and services• Initially focused on substation automation, but now being expanded
• IEC 61850-7-420 for DER• Addresses only the “Nouns”• IEC 61850 object modeling constructs of LNs, etc:
• Covers:• General DER management• Photovoltaic systems• Fuel cells• Diesel generation• Combined heat and power• Wind power is handled separately (IEC 61400-25)
• Currently status is Final Draft International Standard (FDIS)• Due to become International Standard (IS) by mid-2008
Logical Nodes
Common Data Class
Common Components
Standard Data Types
Logical Nodes (LN)
Common Data Classes (CDC)
Common Attributes
Logical Devices (LD)
Data Objects (DO)
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Current Status
•IEEE 1547.8 has its writing groups developing the first draft of the document
•IEC 61850-90-7 is being developed as a Technical Report that contains all of the proposed ES-DER additions to IEC 61850-7-420
• TR IEC 61850-90-7 will be an informative document that can (hopefully) be approved by the IEC within 6 months
• With this TR, vendors can start to implement IEC 61850-7-420 even though they recognize that some minor changes might be made
• In parallel, these (and other) data objects will be added to IEC 61850-7-420 Ed 2 for normative standardization within 2 years
•Develop a White Paper based on Scoping Document
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Questions?