The fast development of renewable energy has resulted in great challenges to the power system, which urgently needs more creta girl wig flexible resources to maintain a system supply/demand balance.This paper established a multi-stage electricity market framework in the presence of a load aggregator (LA) including a day-ahead energy/reserve market and a real-time balanced market.To actively participate in the day-ahead energy market and reserve market, a load profile perception model for LA is proposed to evaluate in detail the response performance of consumers.
Meanwhile, a market-bidding model of LA and a market-clearing model of the system operator for the day-ahead market are also established.To actively join the real-time balance market, a market-bidding model of LA for the real-time balance market based on surplus flexible resources is established.The system operator further clears the real-time balance market and dispatches the ceiling fan with 18 inch downrod collected flexible resources according to the system supply-demand state.
A modified IEEE 30 bus system is tested and shows that the proposed market framework can effectively promote consumers to respond to system regulation requirements and lowers the system supply-demand imbalance risk.