电池(电)
能源管理
能量(信号处理)
计算机科学
汽车工程
功率(物理)
微电网
能源消耗
光伏系统
电力系统
可再生能源
电源管理
分布式发电
作者
Jin-Young Choi,In-Sun Choi,Geon-Ho Ahn,Dong-Jun Won
出处
期刊:IEEE Transactions on Smart Grid
[Institute of Electrical and Electronics Engineers]
日期:2018-03-01
卷期号:9 (2): 1292-1300
被引量:28
标识
DOI:10.1109/tsg.2016.2582842
摘要
A large scale energy storage system has become increasingly attractive and has been applied to various ancillary services. To serve energy for a longer time and to increase the profit of a multiple energy storages system, it should be operated considering each available energy source and the different efficiencies of the subordinate storages. This paper proposes a hierarchical control structure and three types of the power sharing methods for a multiple battery energy storages system. A maximum efficiency optimization method based on a piecewise linearized Lagrangian equation is suggested. In addition, a usable energy sharing algorithm is proposed to distribute the output power evenly according to the available energy of each battery. To improve the system availability, a combination algorithm that selects the appropriate control according to the situation is also proposed. The improvement in energy efficiency of the proposed methods is verified with a duty cycle test of Pacific Northwest National Laboratory by PSCAD/EMTDC.
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