Joint Working Group Use Cases &...

Josef Baumeister – Smart-Grid & -Home Standardization – Status | Apr. 2015

Joint Working GroupUse Cases & Requirements

IEC TR 62746-2 Use Cases and Requirements

16. April 2014Josef Baumeister


Content

1. Why use cases & requirements?

2. Joint Working Group Use Cases & Requirements

3. Status and next steps

4. References


Why use cases & requirements?


My device

My area of responsibility….

What a lucky(?) time before Smart Grid & Smart Home ..…. and now.…..

….. with my scatteredHome Network !


New Smart-Grid, -Home & -Building world – Smart Devices as a member of this world


Excerpt of relevant Stakeholders in this Smart Grid & Home/Building world

* Not complete!

IEC TC59WG15

ZigBeeSEP 2.0

SGIP

SG CG

DKE Inhome

CLC/TC59xWG7

AHAMTF SG

International

US

Europe

Germany

CLC/TC205WG18

ISO/ IECJTC1/SC25

CECEDTF SG

IEC TC57WG21

CLC/TC57mirror

DKE952 DKENeLDE ZVEITF SG

DKEUse Cases

ASHRAE

IEC TC23 WG12

EEBus e.V, Energy@Home, AHAM,… Use Cases & Requirements

Joint working group Use Cases & Requirements(IEC TC57 WG21, CLC TC205 WG18, CLC TC59x WG7)

DKE 1711.x

Association bodies

Standardization bodies

supported


Interoperability means:

•Common interpretation manufacturer independent

•Common behavior manufacturer independent

•Common agreement with all manufactureres

Main target of Smart Grid/Home/Building & Smart Devices: Interoperability


Common Architecture Model: Smart Grid/Home/Building Architecture EU mandate M490 Smart Grid


Smart Grid/Home/Building Architecture example


Morse code

Neutral set of information & messages

MappingWriting a letter &

enveloping

Morse key writer LogisticsPostwoman

To Do

TransportMorse key pad, 2wire lineTruck, Highway

Common Data Model, Common Messages: … we talk about the same interpretation indepenent of different solutions


Basic steps to derive Common Information to be exchanged

Smart Grid Architecture Model (SGAM),EU mandate M490 Smart Grid

Focus of JWG Use Cases & Requirements: Interface into premises & Home/Building area


Joint Working Group Use Cases & Requirements


Focus of Joint Working Group Use Cases & Requirements

SGAM levels of abstraction,EU mandate M490 Smart Grid

Focus of JWG Use Cases & Requirements: Actors, Use Cases & Abstract Data Model


User Stories and Use Case process


User wants to consume the electrical power produced by his own.

User Stories – the promise to the customer.

User wants his electrical car charged by 3:00h p.m., ready to use.

User allows the Customer Energy Manager to reduce the energy consumption of his freezer in a defined range for a specific time, if the grid recognizes (severe) stability issues.

User wants to feed PV energy into own battery pack if too much power is available

User likes to limit own energy consumption up to a defined limit

User wants to know when the washing machine has finished working.

User wants to sell own decentralized energy (e.g. PV) to Smart Grid Grid related emergency situations (blackout

prevention)

User wants to dim all lighting.

User wants his washing done by 5:00h p.m. with least electrical power costs. User wants to get remote help if the washing machine works improperly.

User wants to do basic settings of his devices.


User Stories (e.g. flexible start of Smart Appliance)

The user likes to get the dishes ready until 8:00pm The user prepares the dish washerFills dishesSelects washing programPre-selects the end time (e.g. 8:00pm)May pre selects the incentive program (e.g. cheapest tariff, greenest power etc.)Starts dish washer

The dish washer now informs the CEM aboutThe start of the new programThe pre-selected end timeThe pre selected incentive program (if not already stored)The expected energy consumption profile with duration and (e.g. time related specific) power consumption

The CEM calculates the operation plan and takes into accountThe selected incentive program e.g.Tariff informationPV forecastExpected energy consumption other Smart DevicesExpected energy consumption of the requesting Smart Device

The CEM sends the calculated start time to the Smart Device

The Smart Device starts the cycleBased on the calculated start timeBased on an updated start time


Collection of Use Cases

Use Case Template:based on IEC 62559, extended bySmart Grid Coordination GroupSustainable Processes,EU mandate M490 Smart Grid


Corresponding Sequence Diagrams


Mapping user stories & use cases


Data Model definition

• Flex start -enables Demand Response / Demand Side management– Electricity – Water– Gas

• Example: flex start

• Time info -information about timing etc.– Duration of cycle (complete or remaining)– Earliest start time (relative of absolute)– Latest start time (relative of absolute)

• Example: time info

• Energy profile -information energy demand and timing etc.– Resource (Electricity, Water, Gas …)– Duration of specific cycle– Demand of energy (min, avg. max.)

• Example: energy profile


Specific requirements: How to describe requested power over time (as an example of several requirements)


Status and next steps


• JWG Use Cases & Requirments started in 2012

• Technical Report finalized in 2014 (IEC publicationprocess)

• JWG started in March 2015 with Edition 2

• Main contributors:IEC TC57, CLC TC205, CLC TC59DKE, VDEEEBus e.V., Energy@homeKNX, BACnetand other stakeholders

Actual Status of activities


• IEC TC57 WG21IEC 62746-x (Interface Smart Grid into premises)

• CLC TC205 WG18prEN 50491-12 (Home & Building Management System)

• CLC TC59x WG7, IEC TC59 WG15prEN 50631-x, IEC 62950Smart Appliances

• DKE K/952, STD_1911.x, STD_1711.x

• EEBus Initiative and Energy@homeCommon and interoperable Data modelin alignment with DG Connect and DG Energy

Who uses the outcome as of today

DG Connect project:Common Ontology

DG Energy project:Smart Home survey forregulation

only a short overview, no committment to be complete


References


IEC Technical Committees (TC57, TC59):

http://www.iec.ch/dyn/www/f?p=103:6:0##ref=menu

CENELEC Technical Committees (TC205, TC59):

http://www.cenelec.eu/dyn/www/f?p=104:6

DKE/K952:

https://www.dke.de/de/wirueberuns/diedke-struktur/organisationsstruktur/seiten/dke-gremiumaufeinenblick.aspx?gremiumid=2001537

DKE:

http://www.dke.de/de/Wirueberuns/DieDKE-Struktur/Organisationsstruktur/DKEReports/Der%20Orgaplan-Bericht/Orgaplan.pdf

http://www.dke.de

EU Mandate M490, Smart Grid Coordination Group and EU Mandate M441, Smart Meter Coordination Group:

http://ec.europa.eu/energy/en/topics/markets-and-consumers/smart-grids-and-meters/smart-grids-task-force

EEBus Intitative e.V.:

http://www.eebus.org/ueber-uns/

BSH Hausgeräte GmbH:

http://www.bsh-group.de

References

Joint Working Group Use Cases &...

Documents

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