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Table 5

Comparison of controlling techniues employed in DC microgrids.

Technique Advantages Disadvantages References
Centralized control High level of controllability and observability. High dependency on communication networks.
Poor flexibility and expandability.
Decentralized control Simplicity.
High flexibility for expansions.
Fluctuations can occur due to lack of parameter availability for controlling. [30]
Distributed control Low dependency on communication.
Enhanced controllability.
High expandability.
Inefficient and suboptimal operation.
Increased complexity.
Potential for instability.
Hierarchical control High flexibility for expansions.
High robustness.
High efficiency.
High complexity
High cost
Only preferred to use in large scale DC microgrids.

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