Scenario powergrid • Base system of consumer is negotiating with

providers using a market (standard operation)• Adaptation scenario: Supply of power is

reduced significantly, system has to adapt

Jeff Kephard, Hartmut Schmeck, Jorge Gómez-Sanz, Daniel Menasce, Holger Kasinger, Denny Weyns

• System features• Heterogenous kind of system: different power sources

(renewavel, or not renewable), • Supply demandd• No centralized control• Operational attributes from the social point of view. Amount

of emissions. reliability (number of hours per year that you have power out?)

• Operational attributes from an economical point. cost per kwatt.

• The source can be interrupted. Hence, additional power sources have to be connected.

• Some components are managing the producers and some the consumers.

Request - Supply matching

Consumer

Producer

Producer

Adaption logic

Domain logic

Node

Market

Interaction

KEY

Scenario powergrid• Base system of consumer is negotiating with providers using a

market• Adaptation scenario: Supply of power is reduced significantly,

system has to adaptAspects:• performance, fault tolerance,• multiple sources of generation, consumers,

pro-sumers (produce/consume), local knowledge mapped to some system goals,

• different notions of performance (consumers want power).– performance=achieve a balance between supply/demand– performance=emissions– performance=balance out power schedule, charts for any deviations,

smaller the deviation are from the estimate, the better.

• maximize some power source usage.• battery operated vehicles could be used as store. Less balance

consumption/supply. • rely extra supply on the battery that may not come• current supply dissappear.• peaks on the demand. Trying to predict the peaks and

ballance this with the production.

Producer fails

Consumer

P1

Adaption logic

Domain logic

Node

Market

InteractionKEY

M

A/P

E

Pn

P1..n

ComponentModel

MachineEnergystream

P1..n