A Discrete-Time Algorithm for Real Time Energy Management in DC Microgrids

被引:6
作者
Gao, Fei [1 ,2 ]
Yu, Jiahao [1 ,2 ]
Rogers, Daniel J. [3 ]
机构
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China
[2] Minnist Educ, Key Lab Control Power Transmiss & Convers, Shanghai 200240, Peoples R China
[3] Univ Oxford, Oxford OX1 2JD, England
基金
英国工程与自然科学研究理事会; 上海市自然科学基金;
关键词
Energy management; Real-time systems; Renewable energy sources; Power electronics; Optimization; Bulk storage; Costs; Dc microgrids; energy management; power electronics; power generation dispatch; sampling; SYSTEM; OPERATION; STRATEGY; DESIGN; GRIDS;
D O I
10.1109/TPEL.2022.3220783
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A microgrid will often be characterized by very low embedded system inertia when operating fully islanded. In this state, management of the embedded stored energy in the microgrid over timescales of milliseconds is of critical importance as even short periods of mismatch between generation and consumption will cause voltage collapse on the network. This article proposes a discrete-time (sampling-based) energy management algorithm that uses the rapid controllability of power-electronics interfaced loads to manage the internal stored energy of loads with the aim of minimizing the use of bulk storage and dispatchable generation. Fast interconverter communication is used to balance storage demand across the network and to dispatch generation. A lab-scale microgrid with 10 nodes and a sampling time of 10 ms is used to investigate the effectiveness of the proposed energy management algorithm.
引用
收藏
页码:2896 / 2909
页数:14
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