lecture17- Interchange of power and energy

lecture17- Interchange of power and energy - EEL 6266 Power...

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Unformatted text preview: EEL 6266 Power System Operation and Control Chapter 10 Interchange of Power and Energy © 2002, 2004 Florida State University EEL 6266 Power System Operation and Control 2 Power Pools c When one system is interconnected with many neighbors, all the transaction setup processes with every neighbor become time consuming r individual transactions rarely results in the optimum production cost c one solution is for several utilities to from a power pool r the power pool is administered from a central location r the pool avoids the problem of different prices depending on the order of agreements r the pool incorporates a central dispatch office © 2002, 2004 Florida State University EEL 6266 Power System Operation and Control 3 Power Pools c The energy-broker system r the interconnected power systems deal through a broker c the broker sets up sales and purchases of energy c the broker can observe all the buy and sell offers at one time r by accepting quotations to sell and purchase, the central broker creates an orderly marketplace where prices, supply, and demand are known simultaneously r the “bulletin board” is the simplest form of a broker scheme c utility members post offers to buy or sell power and energy at regular intervals c members are free to access the bulletin board at all times s members finding attractive offers are free to contact those posting the offers and make direct arrangements for the transactions © 2002, 2004 Florida State University EEL 6266 Power System Operation and Control 4 Power Pools c The energy-broker system r more complex broker systems make arrangements to match buyers to sellers directly c the broker may also set the transaction prices c in one scheme, members send the broker hourly buy and sell offers for energy s each member provides information each hour • the incremental cost and megawatt-hours it is willing to sell • the decremental cost and megawatt-hours it is willing to buy s the broker matches buy and sell offers according to certain rules • the lowest cost seller is matched with the highest cost buyer • repeat until all offers are processed • price is set to compensate the seller for the incremental generation cost and split the savings of the buyer equally with the seller © 2002, 2004 Florida State University EEL 6266 Power System Operation and Control 5 Power Pools c The energy-broker system r price setting formula between energy buyer and seller:...
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This note was uploaded on 07/15/2011 for the course EEL 6266 taught by Professor Thomasbaldwin during the Fall '04 term at FSU.

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lecture17- Interchange of power and energy - EEL 6266 Power...

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