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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 12394990 B1

PDFFull Text
Date of Patent:
Aug. 19, 2025

Filed:

Oct. 23, 2024

Method and system for dynamic stability control of power systems with renewable energy

Applicants:

Zhejiang University, Hangzhou, CN;

China Southern Power Grid Csg Electric Power Research Institute, Guangzhou, CN;

Inventors:

Guoteng Wang, Hangzhou, CN;

Wentao Liu, Hangzhou, CN;

Ying Huang, Hangzhou, CN;

Yan Li, Guangzhou, CN;

Baorong Zhou, Guangzhou, CN;

Ye Zhang, Guangzhou, CN;

Wangqianyun Tang, Guangzhou, CN;

Zheng Xu, Hangzhou, CN;

Assignees:

ZHEJIANG UNIVERSITY, Hangzhou, CN;

CHINA SOUTHERN POWER GRID CSG ELECTRIC POWER RESEARCH INSTITUTE, Guangzhou, CN;

China Southern Power Grid Co., Ltd., Guangzhou, CN;

Attorneys:

Tony Hom

TONY C HOM

Primary Examiner:

Robert L Deberadinis

Int. Cl.
CPC ...
H02J 3/38 (2006.01); H02J 3/00 (2006.01);
U.S. Cl.
CPC ...
H02J 3/381 (2013.01); H02J 3/002 (2020.01); H02J 2203/10 (2020.01); H02J 2300/20 (2020.01);
Abstract

A dynamic stability control method for power systems with renewable energy, in which a non-linear system of a grid-forming inverter corresponding to a renewable energy power system is created. An external subsystem corresponding to the grid-forming inverter is constructed based on a Lie derivative. According to the external subsystem, a linear sliding surface corresponding to the external subsystem is constructed, and a dynamic stability control unit corresponding to the external subsystem is generated based on sliding mode control. A first instruction data corresponding to the dynamic stability control unit is generated to control dynamic stability of the renewable energy power system in real time. The voltage instruction value of the grid-forming inverter is modified to improve the dynamic stability of the renewable energy power system. A system for implementing such method is also provided.

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Wang, Guoteng. (2025). Method and system for dynamic stability control of power systems with renewable energy (U.S. Patent No. 12394990). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12394990

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