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.

Date of Patent:
Feb. 27, 2018

Filed:

Apr. 18, 2014
Applicants:

Gansu Electric Power Corporation Wind Power Technology Center, Lanzhou, Gansu Province, CN;

State Grid Gansu Eletric Power Corporation, Lanzhou, Gansu Province, CN;

State Grid Corporation of China, Beijing, CN;

North China Electric Power University, Beijing, CN;

Inventors:

Ningbo Wang, Lanzhou, CN;

Wenying Liu, Lanzhou, CN;

Dan Jin, Lanzhou, CN;

Jiaming Wang, Lanzhou, CN;

Yanhong Ma, Lanzhou, CN;

Cai Liang, Lanzhou, CN;

Long Zhao, Lanzhou, CN;

Yalong Li, Lanzhou, CN;

Qiang Zhou, Lanzhou, CN;

Jing Wen, Lanzhou, CN;

Rong Huang, Lanzhou, CN;

Rundong Ge, Lanzhou, CN;

Jin Li, Lanzhou, CN;

Peng Xu, Lanzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/16 (2006.01); H02J 3/38 (2006.01); H02J 13/00 (2006.01);
U.S. Cl.
CPC ...
H02J 3/16 (2013.01); H02J 3/38 (2013.01); H02J 3/383 (2013.01); H02J 3/386 (2013.01); H02J 13/0006 (2013.01); Y02E 10/563 (2013.01); Y02E 10/763 (2013.01); Y02E 40/34 (2013.01); Y02E 40/72 (2013.01); Y02E 60/723 (2013.01); Y02E 60/726 (2013.01); Y04S 10/123 (2013.01); Y04S 10/16 (2013.01); Y04S 10/24 (2013.01); Y10T 307/549 (2015.04);
Abstract

The present invention has disclosed an optimal control method for reactive voltage of wind power and photovoltaic power centralized grid connection in the field of wind power and photovoltaic power grid connection control technology, comprising: setting actuating stations used to control single wind power plant/photovoltaic power plant, setting substations used to control actuating stations and set master station used to control all the substations; master station calculates setting voltage reference Uof each substation; adopting 3σ method to process set voltage reference Uto obtain set voltage reference interval; regulating high-side voltage of substation to make it fall in set voltage reference interval; if high-side voltage of substation does not fall in set voltage reference interval, then regulating the equipment in wind power plant/photovoltaic power plant via actuating station. The present invention guides the actual operations of electric power system.


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