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A Predictive-control based Low-voltage Ride-through Method for Grid-tied Inverter

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Tech ID:
23-005
Principal Investigator:
Hui Li
Licensing Manager:
Michael Tentnowski
Patents:
Description:

Two predictive-control based low-voltage ride-through methods for a grid-tied Inverter: a Finite-Control-Set Model-Predictive-Control or FCS-MPC based LVRT method, and a deadbeat control based LVRT method.  Both methods can predict the grid voltage, so no voltage sensor is required.  The control can operate with, or without, a phase-lock-loop.  A significant cost and design complexity reduction on the grid-tied inverter is realized.