Post Real Time Price Auction Processing

Transcription

1 and Margaret Post Real Time Price Aucti Processing "Acknowledgment: This material is based up work supported by the Department of Energy under Award Number DE-OE " Disclaimer: "This report was prepared as an account of work spsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or respsibility for the accuracy, completeness, or usefulness of any informati, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily cstitute or imply its endorsement, recommendati, or favoring by the United States Government or any agency thereof. The views and opinis of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof." Versi History Rev. Date Author Change descripti A 06/14/2011 Initial Release B 07/21/2011 First revisi C 08/08/2011 AEP workshop Various updates D 9/12/2011 Tim Simms Implement various updates E 10/13/2011 Brian D. Green Add Narrative, Interface Diagram and update Actors and steps F 10/20/2011 Barry Peirce Added comments and minor word changes/fixes. Copyright 2011 American Electric Power Company

2 and Margaret Summary: This use case addresses the post processing of the periodically created Real Time Price (RTP) signals for AEP s Smart Grid Dispatch System (SGD). After the RTP is computed, the processing described in this use case occurs, to provide the market clearing price (MCP) to the necessary systems. Narrative: Studies indicate that customers who understand the cost of electricity reduce their usage, especially when prices are high. The RTP system (real-time pricing system) will produce price signals every 5 minutes and will communicate the price signals via the internet to every RTP customer and to the Home Energy Management System (HEM) device at the customer premise. In order to produce this price signal, the new SGD system will take its inputs from many existing systems, including the AMI system. The SGD obtains the necessary inputs and calculates the Price for each distributi feeder. The SGD thens passes Price (including the respse to the HEM bid) to the HEM which then passes it to its provisied Programmable Communicating Thermostats (PCT s). The SGD will also pass the Price to the Meter Data Management System (MDM) and the Customer Informati System (CIS) which passes it to the Customer Web Portal. Page 2 of 10 Copyright 2011 American Electric Power Company Rev. 9

3 Interface Diagram: and Margaret Operatis MDM 21 Smart Grid Dispatch 25 CIS Customer Web Portal Internet 57 PCT 11 HEM Customer Page 3 of 10 Copyright 2011 American Electric Power Company Rev. 9

4 Actor(s): and Margaret The list of the actors and the roles that are participating in this use case described in the table below. Name CIS Customer Web Portal HEM MDM PCT SGD Role descripti Customer Informati System that is the system of record for customer data and billing. Interactive web-site that is accessible via the internet that enables the exchange and display of informati for the customer Home Energy Management system (aka Customer EMS) Meter Data Management System A Programmable Ctrollable Thermostat that has enhanced display capabilities The Smart Grid Dispatch system is the central system within the realtime pricing soluti Participating Business Functis: The participating business functi, its acrym and what they provide in this use case are detailed in the table below. Acrym Business Functi/Abstract Compent Services or Informati Provided HEM SGD MDM Home Energy Management system. A logical or physical device typically located at the customer facility that acts as a home electricity ctrol center. As known as Customer EMS. Smart Grid Dispatch system. The central system for Real-Time (customer) pricing. This is the Meter Data Management System which provides meter readings and billing determinants to CIS. The HEM will receive the market clearing price to make it available for display the PCT. System that computes the Real-Time (customer) price signal for smart grid operatis. The Meter Data Management system is respsible for collecting the reads from the AMI Head-End, performing VEE (validati, estimati, and editing) services and presenting the billing determinants to CIS. Page 4 of 10 Copyright 2011 American Electric Power Company Rev. 9

5 and Margaret Assumptis / Design Csideratis: Standard Internatial Electrotechnical Commissi (IEC) Message Definiti format will be followed to provide the Header, Request, Reply, and payload used when defining the messages for the design specificatis. For the purpose of the use cases identified in this document these have been omitted as they are to be provided in the design specificati for the Post Real Time Price Aucti Processing use case. This use case describes ly the post processing phase of the RTP aucti process, that occurs after the RTP calculati has been completed by the SGD All of the SGD to HEM and PCT message flows for this use case will use the SGD to HEM Broadband cnecti, not a Utility AMI Network to HAN communicatis path. Normal Sequence: The sequences of events, showing the order in which they ocurr during the typical progressi of this use case are provided in the table below. The Sequence Diagram that graphically depicts the events is presented immediately following the table. Use Case Step Triggering Event Descripti Of Process Informati To Be Exchanged Producer Receiver Message Type 1 SGD receives Current Real Time Pricing SGD completes calculati of Market Clearing Price for each Distributi Feeder, 2 SGD sends the Market Clearing Price to the HEM via the Internet 3 Internet routes the Price to the HEM 4A 4B.1 HEM receives Market Clearing Price message HEM provides Market Clearing Price to each of its PCTs HEM sends acknowledgement of Price message to SGD via the Internet Price for each Distributi Feeder, Price, Price, Price Price HEM receipt acknowledgeme nt SGD Internal Create SGD Internet Create Internet HEM Create HEM PCT proprietary HEM Internet Proprietary Page 5 of 10 Copyright 2011 American Electric Power Company Rev. 9

6 and Margaret Use Case Step Triggering Event Descripti Of Process Informati To Be Exchanged Producer Receiver Message Type 4B.2 Internet routes acknowledgement of Price message to SGD 5 PCT receives Market Clearing Price message PCT sends acknowledgement of Price message to HEM 6 HEM forwards Market Clearing Price HEM and PCTs receipt acknowledgement messages to SGD via Internet 7 Internet routes Market Clearing Price HEM and PCTs receipt acknowledgement messages to SGD 8 SGD provides Market Clearing Price for each Distributi Feeder to MDM 9 SGD provides Market Clearing Price for each Distributi Feeder to CIS 10 CIS provides Market Clearing Price for each Distributi Feeder to Customer Web Portal Price HEM receipt acknowledgeme nt Price PCT receipt acknowledgeme nt Price PCT receipt acknowledgeme nt Price PCT receipt acknowledgeme nt Price for each Distributi Feeder Price for each Distributi Feeder Price for each Distributi Feeder Internet SGD Proprietary PCT HEM Proprietary HEM Internet Proprietary Internet SGD Proprietary SGD MDM Create SGD CIS Create CIS Custome r Web Portal Create Page 6 of 10 Copyright 2011 American Electric Power Company Rev. 9

7 and Margaret Page 7 of 10 Copyright 2011 American Electric Power Company Rev. 9

8 Integrati Scenarios: and Margaret Adapters will use the Comm Informati Model (CIM) in Extensible Markup Language (XML) to send and receive messages and events. The following are the points of integrati that must be tested for this use case. Other n-cim message interfaces may be testable in this use case. Actor Interface Points SGD HEM CIS HEM PCT CIS Customer Web Portal Pre-cditis: Ne Post-cditis: Ne Exceptis / Alternate Sequences: Ne Use Case Step Triggering Event Descripti Of Process Informati To Be Exchanged Producer Receiver Message Type Page 8 of 10 Copyright 2011 American Electric Power Company Rev. 9

9 Message Type(s) Diagram: and Margaret The following XML Schema Definiti (XSD) diagram shows the normative and informative parts of the message. Not all of the Internatial Electrotechnical Commissi s (IEC) CIM message optial elements must or will be used in the use of IEC CIM for this specific use case. PriceNotificati: Page 9 of 10 Copyright 2011 American Electric Power Company Rev. 9

10 References: and Margaret Use Cases or other documentati referenced by this use case include: AEP Ohio Interoperability Plan V1.docx: Secti (Use Case Real- Time Pricing) Use Cases EPRI Report_V2.4.docx: Secti 2.1(Real-Time Pricing) 61968_9_MeterReadingAndCtrol_FDIS final.docx IEC Ed.1: Applicati integrati at electric utilities System interfaces for distributi management Part 8: Interface Standard For Customer Support 61968_9_MeterReadingAndCtrol_FDIS final.docx: Secti (Meter discnect and recnect); Annex H (XML Schemas for message payloads) Secti H.4 (EndDeviceCtrols) Issues: Ne ID Descripti Status Miscellaneous Notes: Ne Page 10 of 10 Copyright 2011 American Electric Power Company Rev. 9