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In islanded microgrids (MG), distributed generators (DG) can be employed as distributed compensators for improving the power quality in consumer side. A multi-level hierarchical control is usually applied with each level dealing with different issues. In case of voltage unbalance compensation, droop control and virtual impedance can be applied in primary control to help the basic active and reactive...
In microgrids, the distributed generators (DG) can be used as distributed compensators so as to compensate the voltage unbalances in the critical bus. However, the power quality disturbance in generator sides and local buses may be affected and exceeds the limit. It can be more convenient to implement tertiary control so as to adjust the compensation efforts among DGs and ensure the acceptable power...
In order to achieve desirable power quality in the critical bus (CB) in microgrids, primary and secondary control can be used to realize unbalance compensation and at the same time, to make distributed generators (DGs) share the compensation efforts. Considering that the power quality requirements in different areas and for different consumers can be different, this paper implements a tertiary control...
In multibus islanded microgrids, the power quality requirements for different areas and buses can be different. This paper proposes a hierarchical control to realize optimal unbalance compensation for satisfying the power quality requirements in different areas. Primary and secondary controllers are applied to realize unbalance compensation for critical bus, and at the same time, to make distributed...
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