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:
Oct. 20, 2015

Filed:

Mar. 24, 2014
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Xinhui Wu, Niskayuna, NY (US);

Jiao Liu, Shanghai, CN;

Dan Hou, Shanghai, CN;

Xueqin Wu, Shanghai, CN;

Zhuohui Tan, Shanghai, CN;

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/537 (2006.01); H02M 7/48 (2007.01); H02J 3/38 (2006.01); H02J 3/48 (2006.01); H02J 3/50 (2006.01);
U.S. Cl.
CPC ...
H02M 7/537 (2013.01); H02J 3/383 (2013.01); H02J 3/48 (2013.01); H02J 3/50 (2013.01); H02M 7/48 (2013.01);
Abstract

A power conversion system is disclosed including a DC bus for receiving DC power, a power converter for converting the DC power to AC power, and a controller. The controller includes an active power regulator for generating a phase angle command signal, a reactive power regulator for generating a voltage magnitude command, and an active power (P) and reactive power (Q) decoupling unit for decoupling interaction between the active and reactive power regulators. The PQ decoupling unit includes an active power compensation element and a reactive power compensation element. The active power compensation element is used for generating a phase angle compensation signal based on a reactive power error signal, to compensate the phase angle command signal. The reactive power compensation element is used for generating a voltage magnitude compensation signal based on an active power error signal, to compensate the voltage magnitude command signal.


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