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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 12603505 B1

PDFFull Text
Date of Patent:
Apr. 14, 2026

Filed:

Oct. 23, 2024

Dynamic frequency coordination control method for asynchronous regional power grids during wet and dry seasons

Applicant:

Kunming University of Science and Technology, Kunming, CN;

Inventors:

Hongchun Shu, Kunming, CN;

Zongxue Shao, Kunming, CN;

Yutao Tang, Kunming, CN;

Wei Zhao, Kunming, CN;

Shunguang Lei, Kunming, CN;

Guangxue Wang, Kunming, CN;

Yinan Hu, Kunming, CN;

Botao Shi, Kunming, CN;

Assignee:

Kunming University of Science and Technology, Kunming, CN;

Attorney:

Bayramoglu Law Offices LLC

Primary Examiner:

Rexford N Barnie

Assistant Examiner:

Thai H Tran

Int. Cl.
CPC ...
H02J 3/36 (2026.01); H02J 3/1835 (2026.01); H02J 3/34 (2026.01); H02J 3/38 (2026.01);
U.S. Cl.
CPC ...
H02J 3/36 (2013.01); H02J 3/1835 (2013.01); H02J 3/34 (2013.01); H02J 3/38 (2013.01);
Abstract

A dynamic frequency coordination control method for asynchronous regional power grids during wet and dry seasons is provided. By using frequency synchronous control in VSC-HVDC, frequency consistency and synchronization between the sending-end and receiving-end grids can be ensured within the range of power adjustment, enabling real-time and automatic sharing of frequency regulation resources between the two grids. Through the use of bilateral frequency limiting control in LCC-HVDC, the frequency regulation effect is enhanced, balancing frequency fluctuations between the sending-end and receiving-end grids. VSC-HVDC adaptive reactive power support control is employed to provide reactive power support to nearby LCC-HVDC, avoiding frequent operations of LCC-HVDC converter transformers and filters during frequency limiting control actions, thereby extending equipment lifespan. Furthermore, by utilizing grid-following and grid-forming control in renewable energy grid integration with additional frequency control, the frequency support capacity of renewable energy generation is improved.

Find Patent Forward Citations

Shu, Hongchun. (2026). Dynamic frequency coordination control method for asynchronous regional power grids during wet and dry seasons (U.S. Patent No. 12603505). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12603505

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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