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:
Feb. 27, 2024
Filed:
Oct. 13, 2021
National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);
Urban Electric Power, Pearl River, NY (US);
Arrowhead Center, Inc., Las Cruces, NM (US);
Stanley Atcitty, Albuquerque, NM (US);
Valerio De Angelis, Santa Barbara, CA (US);
Satishkumar J. Ranade, Las Cruces, NM (US);
Sijo Augustine, Las Cruces, NM (US);
Nataraj Pragallapati, Edison, NJ (US);
Olga Lavrova, Las Cruces, NM (US);
National Technology & Engineering Solutions of Sandia, Albuquerque, NM (US);
Arrowhead Center, Inc., Las Cruces, NM (US);
Other;
Abstract
A DC bus is connected to a PV array, a battery or both, to power a grid connected inverter load on the bus. A system and method is described for controlling current flow on a DC bus regardless of the type of inverter. A converter receives a DC battery voltage. A switching module controls current flow through the converter. A current generator generates a reference current in response to a reference voltage. A comparator connected at the output of the current generator compares the reference current with a battery current and outputs a signal to a controller. The controller generates a reference value. A PWM generator modulates the switch module to control current flow and energy flow between the DC bus and the battery. The current from the DC bus to the inverter is controlled to allow proper grid-connected operation regardless of inverter type.