Online Grid Impedance Estimator

University of Luxembourg Technology Overview
The invention provides a control algorithm for decoupling the active and reactive power flow of grid-tied power inverters.
The core system relies on a novel disturbance-free virtual grid impedance estimator. The featured functionalities are an accurate decoupled active and reactive power control, power factor control range from -0.25 to 0.25.
Stage of Development
Invention tested and verified on the power micro-grid test bench at the University of Luxembourg.

Low investment rate – software upgrade with minor hardware changes
Improved grid efficiency
Reduction of grid extension rate
Optimization of the power production supplied by variable renewable energy sources.
Reduction of passive elements failures

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