Hierarchical Control System for DC Microgrid

DOI

10.2991/lemcs-15.2015.233How to use a DOI?

Keywords

DC Microgrid; Hierarchical control strategy; Maximum power point tracking; Voltage stabilization; Bidirectional AC/DC converter

Abstract

In order to enhance the plug and play function of new energy power generation in DC microgrid, to increase the utilization of renewable energy and to improve the performance of DC bus voltage, a hierarchical control strategy of DC microgrid is proposed. This hierarchical control strategy is composed of two levels. Distributed control is adopted for new energy power generation and energy storage unit controlled by voltage stabilization strategy to guarantee the stability of DC bus voltage in the primary control level. Secondary control level is employed to restore the voltage deviation caused by the primary control, using bidirectional vector decoupling control and solves the problem of bidirectional power flow with the grid. The detailed theoretical analysis and design method for each control level is also realized. Comprehensive simulation results indicate that the system based on new control method is stable and effective.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yaning Yuan
AU  - Sen Yang
PY  - 2015/07
DA  - 2015/07
TI  - Hierarchical Control System for DC Microgrid
BT  - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
PB  - Atlantis Press
SP  - 1172
EP  - 1176
SN  - 1951-6851
UR  - https://doi.org/10.2991/lemcs-15.2015.233
DO  - 10.2991/lemcs-15.2015.233
ID  - Yuan2015/07
ER  -