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:
Dec. 23, 2025
Filed:
Mar. 15, 2024
Sparq Systems Inc., Kingston, CA;
Abirami Kalathy, Kingston, CA;
Suzan Eren, Kingston, CA;
Arpan Laha, Kingston, CA;
Omid Salari, Kingston, CA;
Majid Pahlevaninezhad, Kingston, CA;
Praveen Jain, Kingston, CA;
Sparq Systems Inc., Kingston, CA;
Abstract
Systems and methods relating to controlling power from renewable power sources. There is provided a control system that uses a non-linear controller for controlling currents in a DC/AC inverter especially when the DC/AC inverter is providing PV power to a 3-phase motor when the system is in an off-grid mode. In on-grid mode, a power grid is coupled to the DC/AC inverter and the control system provides MPPT to provide PV power to the grid. In off-grid mode, the grid is not coupled to the DC/AC inverter. The non-linear controller is based on differentiable manifolds that are also Lie groups. In off-grid mode, this non-linear controller finds the correct phase and frequency for the inverter current for the motor. The frequency is the output of the Lie group-based controller and is generated based on the voltage and current vectors of the motor.