The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2014
Filed:
May. 29, 2013
Northern Power Systems Utility Scale, Inc., Barre, VT (US);
Jeffrey K. Petter, Williston, VT (US);
Northern Power Systems, Inc., Barre, VT (US);
Abstract
Software embodied in a machine-readable storage medium and useful for controlling alternating-current (AC) output of a power converter connected to an AC power network. The software is designed and configured to estimate the phase of the voltage on the AC power network that will be on the network when the network recovers from a fault. Such software allows a power-network-connected power source to ride-through a fault event and continue supplying power thereto at the designed phase and frequency. In one embodiment, the software provides this estimate by tracking the phase with a response time changed in inverse proportion to the voltage on the power network.