Flexible Market for Smart Grid: Coordinated Trading of Contingent
Contracts
release_k54pqxqb2ff77masqfajbr3asq
by
Junjie Qin, Ram Rajagopal, Pravin Varaiya
2017
Abstract
A coordinated trading process is proposed as a design for an electricity
market with significant uncertainty, perhaps from renewables. In this process,
groups of agents propose to the system operator (SO) a contingent buy and sell
trade that is balanced, i.e. the sum of demand bids and the sum of supply bids
are equal. The SO accepts the proposed trade if no network constraint is
violated or curtails it until no violation occurs. Each proposed trade is
accepted or curtailed as it is presented. The SO also provides guidance to help
future proposed trades meet network constraints. The SO does not set prices,
and there is no requirement that different trades occur simultaneously or clear
at uniform prices. Indeed, there is no price-setting mechanism. However, if
participants exploit opportunities for gain, the trading process will lead to
an efficient allocation of energy and to the discovery of locational marginal
prices (LMPs). The great flexibility in the proposed trading process and the
low communication and control burden on the SO may make the process suitable
for coordinating producers and consumers in the distribution system.
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