Energy Market Mechanism and Design
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Contents |
Energy Market Mechanism and Design
Questions and Issues
- Decentralized market vs centralized market
- Market stability and physical stability
- would decentralized control destabilized the grid?
- a perfectly competitive energy market
- both layers - physical and economical - need to be stable
- NOW: relatively low number of big suppliers at large time scales
- US: many suppliers at small time scales
- Need to backfill with other things to make it stable - buffers and stuff
- Time scale for market decision - 1 hour in our sim - but what is the right scale?
- Whether same time scale across or different timescales across the heterogenous IPSs in the grid
- The contract for a larger time scale can have statements about the finer timescale events
- The ISO runs at minutes granularity - at least the stability assessments
- It's OK to do it distributed if only see 1 level up and 1 level down - decision point synchronously at clock edge to make it not chaining
- Two simulations - the physical layer and the market layer - make them separate with a stable "interface"
Design Propositions
Prop A: Market established on top of physical grid where 1 level up and 1 level down makes 1 market
- should solve local problem and let is trickle up.
- timescale can be different at different markets - faster at the leaves and slower at closer to the roots
- if it's a large wind farm - put in buffer to change timescale or dedicated link to loads
- your placement in the transmission hierarchy is based on your timescale / level of variability
- what is the synchronization protocol?
Prop B: Market is logical and can be established between any supplier and load
- physically does not scale to large set of things.
Action Plan
- Model Prop A
- Analysis on stable points on the graph (all possible configurations)
- Modify the simulator to simulate Prop A.
- Building a physical model (how real is it)
