Microgrid hierarchical control scheme

What is a hierarchical control structure of a microgrid?

The hierarchical control structure of microgrid is responsible for microgrid synchronization, optimizing the management costs, control of power share with neighbor grids and utility grid in normal mode while it is responsible for load sharing, distributed generation, and voltage/frequency regulation in both normal and islanding operation modes.

Can hierarchical control improve energy management issues in microgrids?

This paper has presented a comprehensive technical structure for hierarchical control—from power generation, through RESs, to synchronization with the main network or support customer as an island-mode system. The control strategy presented alongside the standardization can enhance the impact of control and energy management issues in microgrids.

How to optimize microgrid control?

To optimize microgrid control, hierarchical control schemes have been presented by many researchers over the last decade. This paper has presented a comprehensive technical structure for hierarchical control—from power generation, through RESs, to synchronization with the main network or support customer as an island-mode system.

What are the control levels of microgrids in grid-connected mode?

First control level responsible for the long-term behavior of the microgrid. Second control level responsible for primary frequency provision of the microgrid. Practical validation of the microgrid’s hierarchical control structure. This paper presents a three-level hierarchical control approach for microgrids in grid-connected mode.

Can a three-level hierarchical control approach be applied to microgrids?

The main idea of this paper was to present a three-level hierarchical control approach that can be applied to microgrids. The first control level is based on dynamic economic dispatch algorithm and its main purpose is to optimize microgrid operation in the long-run with the goal of minimizing microgrid’s operating costs.

What is a hierarchical control scheme?

The proposed hierarchical control scheme consists of three levels. The first level is an economic problem that minimizes overall operating cost of a microgrid. The second level uses more accurate representation of specific devices within the microgrid and solves real-time control problems on an aggregated level.