Flexible virtual capacitance control method for stabilizing DC microgrid bus voltage fluctuation
A virtual capacitor and DC micro-grid technology, applied in the field of control, to achieve good response characteristics, flexible and reliable inertial support, and smooth DC voltage fluctuations
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[0034] The flexible virtual capacitor control method for stabilizing DC microgrid bus voltage fluctuations provided by the present invention provides real-time and flexible inertial support for the system under the multi-index constraint of ensuring the safe and stable operation of the DC microgrid, and suppresses the sudden change of DC voltage.
[0035] The power grid regulated by the present invention refers to a DC micro-grid composed of new energy power generation units, battery energy storage units, AC and DC load units, and AC main grids. When adjusting, first reasonably construct a stable operation constraint set according to the actual situation of the system to establish Under virtual capacitor control, a stable operation index set that satisfies multiple constraints is calculated, and its stable operation boundary is calculated; then the key control parameter values within the boundary are calculated using the constructed function and imported into the control module: ...
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