Optimal Dispatching Strategy of Regional Integrated Energy System Considering Virtual Energy Storage System

doi:10.12204/j.issn.1000-7229.2020.08.012

Abstract

Abstract: Transferring loads across time periods, energy storage device plays an important role in the economic and stable operation of multi-energy system. But construction cost of energy storage device is high, which makes it difficult to apply energy storage device on a large scale. From the perspective of electric energy and heat energy, this paper proposes an optimal scheduling strategy for regional integrated energy system （RIES） considering virtual energy storage （VES） system, which can also transfer energy loads across time periods. According to the electric vehicle charging management method and building heat storage characteristics, virtual electric energy and thermal energy storage model is developed. The virtual energy storage system is integrated into the RIES optimal dispatching model. By arranging the charging of electric vehicles and adjusting indoor temperature within the temperature comfort range rationally, charging/discharging power management of virtual energy storage system can be realized. Finally, different energy supply modes under the summer refrigeration scenario are simulated to demonstrate the effectiveness of the proposed optimal dispatching method. Simulation results show that the proposed strategy can improve the economy and stability of the multi-energy system while guarantee the customer temperature comfort and meet regional energy demands.

Key words: regional integrated energy system（RIES）, virtual energy storage（VES）, economic dispatching, mixed integer linear programming

CLC Number:

TM 73

ZHU Xu, YANG Jun, LI Gaojunjie, DONG Xuzhu, LIU Shouwen. Optimal Dispatching Strategy of Regional Integrated Energy System Considering Virtual Energy Storage System[J]. ELECTRIC POWER CONSTRUCTION, 2020, 41(8): 99-110.

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