Droop and Oscillator Based Grid-Forming Converter Controls: A Comparative Performance Analysis
M A Awal, Hui Yu, Srdjan Lukic, Iqbal Husain
Abstract
Two distinct approaches, one droop-based phasor-domain modeled and the other non-linear oscillator-based time-domain modeled, have emerged for the analysis and control of power electronic converters at the system interface layer where these converters are integrating distributed energy resources (DERs). While the droop-type controllers are based on distinct time-scale separation of control loops, purposefully slowing down the response of the DERs, the oscillator-based controllers deliver fast dynamic response with accurate power sharing capability as well as stability guarantee.
Topics & Concepts
Voltage droopConvertersControl theory (sociology)Distributed generationContext (archaeology)Computer scienceGridCompensation (psychology)Time domainVoltage sourceElectronic engineeringEngineeringVoltageElectrical engineeringControl (management)MathematicsRenewable energyBiologyPsychologyArtificial intelligenceComputer visionPaleontologyGeometryPsychoanalysisMicrogrid Control and OptimizationIslanding Detection in Power SystemsHVDC Systems and Fault Protection