Bi-level economic scheduling between IESO and compressed air energy storage based on flexible electricity-heat pricing

Abstract

The rapidly developing compressed air energy storages (CAESs) can couple electricity and heat with a lower requirement for fossil fuels. Hence, CAESs are expected to be new cleaner energy hubs of integrated energy systems (IESs). However, the attention given to the pricing mechanism that efficiently improves the consumption of renewable energy generations (RGs) in CAES and the operating revenue of the system is still less. To this end, this paper designs a flexible multi-source dynamic electricity-heat pricing mechanism (MDEH) to help with the economic scheduling of the system. Meanwhile, the potential of CAESs to provide spinning reserves to improve the reliability of IESs accessed with high-proportioned RGs is further exploited. Finally, a set of simulation analyses on a real system are conducted to verify the effectiveness of the proposed method.

Keywords

• Integrated energy systems
• Compressed air energy storage
• Pricing mechanism
• Economic scheduling