2012 · 20 citations · 4 references
EngineeringElectrical EngineeringPower ElectronicsRenewable Energy IntegrationSystem DynamicsDistributed Energy ResourcesPower Electronics For Renewable EnergyPower Grid AnalysisPower QualityPower System StabilityVoltage RegulationActive ControlActive Power ControlControl Structure DesignDc-dc Converter ControlDc-link Voltage ControlDroop ControlDynamic Performance AnalysisVoltage Control
The earlier developed control method using a piecewise linear droop curve, with different droop values for the different segments, has now been optimised for dynamic performance.Non-linearities at the junctions of two linear droop sections have been adressed.Also non-linearity of power based DC voltage control has been adressed.Dynamic instability due to high control gains has been treated and a new improved control structure has been proposed.The concepts have been validated with RMS simulation with the DIgSILENT PowerFactory software on the CIGRE B4 DC grid test system.
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