Abstract
Advanced Adiabatic Compressed Air Energy Storage (AA-CAES) has been considered to possess excellent potential of utilization in Regional Integrated Energy System (RIES) due to its various merits including superior ancillary service and multi-carrier energy generation and storage capacity. However, few studies have been reported on schedule strategies considering AA-CAES and its multiple applications in market environment. This paper presents a RIES schedule strategy considering multiple applications of AA-CAES accounting for trading strategy of Energy Hub Operator (EHO). The operation mechanism and the schedule framework of RIES are built at first. Then, key applications including heating service and reserve service of AA-CAES are analyzed and modeled, and the schedule model of RIES utilizing AA-CAES to optimize economy of EHO is developed. A RIES based on AC-DC hybrid micro-grid is used for case studies to assess the comprehensive benefits of AA-CAES for cogeneration, reserve providing and photovoltaic (PV) consumption. The results show that the multiple application capacity of AA-CAES lead to 21.89% increase in the overall profit of EHO. It improves the operation flexibility of RIES, optimizes market trading strategies of EHO and promotes the energy autonomy of RIES from various ways.
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