Enhanced Microgrid Power Flow Incorporating Hierarchical Control
Fei Feng, Peng Zhang
Abstract
An enhanced microgrid power flow (EMPF) is devised to incorporate hierarchical control effects. The new contributions are threefold: 1) an advanced-hierarchical-control-based Newton approach is established to accurately assess power sharing and voltage regulation effects; 2) a modified Jacobian matrix is derived to incorporate droop control and various secondary control modes; and 3) the secondary adjustment is calculated on top of the droop-control-based power flow results to ensure a robust Newton solution. Case studies validate that EMPF is efficacious and efficient and can serve as a powerful tool for microgrid operation and monitoring, especially for those highly meshed microgrids in urban areas.
Topics & Concepts
MicrogridVoltage droopJacobian matrix and determinantControl theory (sociology)AC powerControl engineeringPower controlPower flowPower (physics)Control (management)Computer scienceEngineeringElectric power systemVoltageVoltage regulatorMathematicsElectrical engineeringArtificial intelligenceQuantum mechanicsApplied mathematicsPhysicsMicrogrid Control and OptimizationOptimal Power Flow DistributionSmart Grid Energy Management