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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.:

US 12278492 B1

PDFFull Text
Date of Patent:
Apr. 14, 2025

Filed:

Dec. 15, 2024

Method and system of self-adaptive setting of closed-loop parameters for suppressing photovoltaic coupling harmonics

Applicant:

Shandong University, Jinan, CN;

Inventors:

Yuanyuan Sun, Jinan, CN;

Pengbo Shan, Jinan, CN;

Yahui Li, Jinan, CN;

Lei Ding, Jinan, CN;

Kejun Li, Jinan, CN;

Kaiqi Sun, Jinan, CN;

Zhijie Liu, Jinan, CN;

Yirou Lai, Jinan, CN;

Zhijie Ma, Jinan, CN;

Qianqian Li, Jinan, CN;

Assignee:

SHANDONG UNIVERSITY, Jinan, CN;

Attorney:

IPRO, PLLC

Primary Examiner:

Charles Cai

Int. Cl.
CPC ...
H02J 3/01 (2005.12); H02J 3/38 (2005.12);
U.S. Cl.
CPC ...
H02J 3/01 (2012.12); H02J 3/38 (2012.12); H02J 2203/20 (2019.12); H02J 2300/24 (2019.12);
Abstract

The present invention provides a method and system of self-adaptive setting of closed-loop parameters for suppressing PV coupling harmonics, comprising: acquiring node voltages and node currents of PV grid-connected inverters; constructing harmonic coupling admittance matrix according to the node voltages and node currents; calculating an amplitude of each element in the constructed harmonic coupling admittance matrix; screening contribution sources of coupling harmonics according to the calculated amplitude of the each element; evaluating quantitatively harmonic admittance of the PV grid-connected inverter according to screened contribution sources; and, carrying out optimization iteration for double-closed-loop PI control parameters of inverter with objective of minimizing the coupling harmonics of the PV grid-connected inverter according to results of the quantitative evaluation of the harmonic admittance, to complete self-adaptive setting of closed-loop parameters for suppressing PV coupling harmonics.

Find Patent Forward Citations

Sun, Yuanyuan. (2025). Method and system of self-adaptive setting of closed-loop parameters for suppressing photovoltaic coupling harmonics (U.S. Patent No. 12278492). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12278492

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