Flexgen Power Systems, Inc.

Gopalakrishnan Balakrishnan

Robert William Johnson, Jr

Pasi Sakari Taimela

Tony Olivo

Mengbin Yang

A system includes a converter configured to be coupled between an energy storage unit and a grid and a control circuit configured to detect frequency and voltage variations of the grid and to responsively cause the converter to transfer power and reactive components to and/or from the grid. The control circuit may implement a power control loop having an inner frequency control loop and a reactive component control loop having an inner voltage control loop. The control circuit may provide feedforward from the inner frequency control loop to the inner voltage control loop to inhibit reactive component transfer in response to a voltage variation deviation of the grid due to a power transfer between the energy storage unit and the grid.

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Katy, TX, United States of America

Gopalakrishnan Balakrishnan