The robust-optimization operation strategy of the electro-thermal integrated energy system

Integrated energy system (IES) takes multi-energy complementation and energy ladder utilization as the core, emphasize the ’ubiquitous interconnection’ between different energy systems and the interaction of information & energy flow. This article aims to build a new type of robust-optimization operation strategy of electro-thermal IES, where the robust coefficient for expressing the uncertainty of wind turbine output characteristic. The proposed IES taking into account the conversion of natural gas and electric power, the user-side demand response and the real-time transaction in the energy market, and the simulated objective are obtained from the combined objective of economy, environmental, energy efficiency utilizing the entropy weight method. The results express that the proposed IES is reasonable and practical, suggesting an IES scheduling plan while providing a reference to market pricing and related policies.