Patent · US Active

System and method of online filtering of photovoltaic signals

US9531321B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

General Electric Company · US

Inventors

Ara Panosyan · Munich, DE
Luca Parolini · Landshut, DE
Eva-Maria Baerthlein · Hamburg, DE
Daniel Kotzor · Hanerau-Hademarschen, DE

Key dates

Filing date	Apr 22, 2014
Grant date	Dec 27, 2016
Priority date	—
Expiry date	Jun 20, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A system for online filtering of photovoltaic (PV) output signals includes a programmable filter that is programmed to decompose measured PV output power into an estimated low-frequency signal component, based substantially on movement of the sun and an estimated high-frequency signal component, based substantially on cloud shading. An open loop controller generates a reactive power compensation signal based on at least one of the low-frequency signal component and the high-frequency signal component. The low-frequency signal component is defined by a positive portion of a sine curve that is based substantially on movement of the sun.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.