CHEN Qixin,LIU Xue,FANG Xichen,et al.Electricity Market Clearing Mechanism Considering Guaranteed Accommodation of Renewable Energy[J].Automation of Electric Power Systems,2021,45(6):26-33.
CHEN Qixin,LIU Xue,FANG Xichen,et al.Electricity Market Clearing Mechanism Considering Guaranteed Accommodation of Renewable Energy[J].Automation of Electric Power Systems,2021,45(6):26-33. DOI: 10.7500/AEPS20200702006.
Electricity Market Clearing Mechanism Considering Guaranteed Accommodation of Renewable Energy
has become an important form of energy supply in China and is widely involved in electricity market transactions. It has become a key task to guarantee and promote renewable energy accommodation through market mechanisms for construction of electricity market in China
especially in the spot market. In this paper
the guaranteed accommodation of renewable energy is integrated into the mechanism design of electricity markets and the clearing mechanism triggered in the event of energy abandonment in the spot market is proposed. On the basis of primary clearing calculation in the spot market
when renewable curtailment happens
the bidding price of abandoned power units is firstly revised. The price zone is scaled while maintaining the power plant quotation sequence and the bidding price is amended to be the price receiver with priority of clearing. Secondly
another clearing is carried out based on the revised bidding information to achieve the guaranteed accommodation of renewable energy. Based on the results of two-step clearing
a settlement compensation mechanism with incentive compatibility is proposed. In order to fully consider the operation characteristics of renewable energy
the complex constraints of cascaded hydropower stations such as water level control
water balance and cascade coupling
are especially introduced into the clearing model. Finally
an improved IEEE 30-bus system is used to verify the proposed market mechanism.
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references
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