Improving Voltage Ride-Through Capability of Grid-Tied Microgrid With Harmonics Mitigation
Kha T. Nguyen, G. W. Chang, Yu‐Jen Liu, Guangyao Li
Abstract
When the microgrid operates in grid-tied mode, the voltage ride-through (VRT) capability presents a challenge in its inverter controller design. This letter proposes an effective method to support the VRT capability of an inverter-based grid-tied microgrid during grid fault. In addition, the inverter control is implemented by a combined method to mitigate its output current harmonics under normal or faulty grid conditions, even if the grid voltage is distorted. Simulations are performed using Matlab/Simulink and implemented in a real-time simulator with a hardware setup to validate the usefulness of the proposed method.
Topics & Concepts
MicrogridHarmonicsInverterMATLABGridVoltageFault (geology)Controller (irrigation)EngineeringComputer scienceElectronic engineeringControl theory (sociology)Control engineeringElectrical engineeringControl (management)BiologyAgronomyArtificial intelligenceMathematicsGeologyGeometryOperating systemSeismologyMicrogrid Control and OptimizationSmart Grid Energy ManagementOptimal Power Flow Distribution