USPTO Patent Granted for Inverter Control Apparatus

ChangeBridge: Patent Grants - Power Supply (H02J)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted a patent (US12587019B2) for an inverter control apparatus developed by The University of North Carolina at Charlotte. The patent covers methods and apparatus for controlling one or more inverters, including features for droop control, voltage magnitude control, phase control, frequency control, and inertia control.

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What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12587019B2 for an "Apparatus and method for controlling one or more inverters." The patent, assigned to The University of North Carolina at Charlotte, details an apparatus that includes controllers configured to provide various control functions such as droop control, voltage magnitude control, phase control, frequency control, and inertia control for associated inverters. These controls enable power supplies to synchronize with a power grid or other power supplies, even when disconnected.

This patent grant is a notification of intellectual property protection for a specific technological innovation. It does not impose new regulatory obligations on businesses. However, companies operating in the power electronics or renewable energy sectors, particularly those involved in grid synchronization and inverter technology, should be aware of this patent to ensure their products do not infringe on the granted claims. No immediate compliance actions are required for regulated entities.

Source document (simplified)

← USPTO Patent Grants

Apparatus and method for controlling one or more inverters

Grant US12587019B2 Kind: B2 Mar 24, 2026

Assignee

THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE

Inventors

Madhav Manjrekar, Prithwiraj Roy Chowdhury

Abstract

An example apparatus for controlling one or more inverters is provided herein. In some embodiments, the apparatus for controlling one or more inverters may include one or more controllers. In some embodiments, each of the one or more inverters is associated with at least one power source. In some embodiments, each of the one or more controllers may configured to provide droop control, voltage magnitude control, phase control, frequency control and inertia control for an associated inverter of the one or more inverters. In some embodiments, each of the one or more controllers comprises a voltage control loop, a virtual inertia control loop, and a droop control loop enabling the power supplies to sync with a power grid and/or other power supplies when the power supply is disconnected from the power grid and/or other power supplies and/or connected to a power supply to the power grid and/or other power supplies.