期刊
IET RENEWABLE POWER GENERATION
卷 14, 期 10, 页码 1631-1640出版社
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/iet-rpg.2019.1136
关键词
robust control; voltage control; distributed power generation; power generation control; optimal control; energy management systems; control structures; optimum control schemes; hierarchical control strategy; robust control; primary control; secondary control; microgrid clusters; tertiary control; DC microgrid system; current regulation; voltage regulation; error-correction; power sharing; power management; energy management
资金
- Science & Engineering Research Board (SERB), Department of Science & Technology (DST) [EMR/2017/004188]
This work presents an extensive review of hierarchical control strategies that provide effective and robust control for a DC microgrid. DC microgrid is an efficient, scalable and reliable solution for electrification in remote areas and needs a reliable control scheme such as hierarchical control. The hierarchical control strategy is divided into three layers namely primary, secondary and tertiary based on their functionality. In this study, different methods of primary control for current and voltage regulation, secondary control for error-correction in voltage and current, power sharing in a microgrid and microgrid clusters and tertiary control for power and energy management with a primary focus on minimal power loss and operational cost in a DC microgrid system are reviewed in-depth. Along with this, the advantages and limitations of various control structures like centralised, decentralised, distributed are discussed in this study. After a comparative study of all control strategies, the optimum control schemes from the author's point of view are also presented.
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