Patent ID: 11967891
Assignee: EATON INTELLIGENT POWER LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A control system comprising:
a voltage regulation block configured to determine an AC reference current value based on a DC electrical quantity of a power converter; and
a current regulation block configured to receive the AC reference current value, the current regulation block comprising:
a harmonics compensation block configured to estimate harmonic voltage content at an intermediate node of the power converter based on an AC current at the intermediate node; and
a control block configured to generate a voltage control signal based on the estimated harmonic voltage content, and to provide the voltage control signal to the power converter to reduce harmonic current content at an input node of the power converter, wherein the input node of the power converter is electrically connected to an alternating current (AC) power grid.