Optimal dispatch of multi energy system using power-to-gas technology considering flexible load on user side

作     者：Zi LING Xiu YANG Zilin LI 

作者机构：College of Electric EngineeringShanghai University of Electric PowerShanghai 200090China 

出 版 物：《Frontiers in Energy》 (能源前沿（英文版）)

年 卷 期：2018年第12卷第4期

页      面：569-581页

核心收录：

学科分类：08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：supported by the local capacity construction plan of Shanghai Municipal Science and Technology Commission 

主　　题：multi-energy system energy hub series characteristic optimal dispatch flexible load 

摘      要：The relation between power-to-gas technology (P2G) and energy interconnection becomes increasingly close. Meanwhile, the participation of flexible load on user side in system optimization has attracted much attention as an efficient approach to relieve the contradiction between energy supply and energy demand. Based on the concept of energy hub, according to its series characteristic, this paper established a generic multi-energy system model using the P2G technology. The characteristic of flexible load on user side was considered and optimal dispatch analysis was made, so as to reduce the cost, to reasonably dispatch the flexible load, to reduce the discharge, to enhance the new energy output, and to increase the power-to-gas conversion efficiency. Finally, a concrete analysis was made on the optimal dispatch result of the multi-energy system using the P2G technology considering flexible load on user side in the calculating example, and optimal dispatch of the system was verified via four different scenarios. The results indicate that cooperative dispatch of multi-energy system using the P2G technology considering flexible load on user side is the most economic, and can make a contribution to absorption of new energy and P2G conversion. In this way, environmental effects and safe and stable operation of the system can be guaranteed.