SINGLE-PHASE FIVE-LEVEL CONVERTER CONTROL METHOD AND DEVICE

Title:

SINGLE-PHASE FIVE-LEVEL CONVERTER CONTROL METHOD AND DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/128674

Kind Code:

A1

Abstract:

Provided is a single-phase five-level converter control method and device, wherein the method comprises: acquiring the first-phase initial modulation wave and the second-phase initial modulation wave of a single-phase five-level converter; acquiring the modulation wave of the first level, the modulation wave of the second level, the modulation wave of the third level, the modulation wave of the fourth level and the modulation wave of the fifth level output by the single-phase five-level converter; calculating the modulation wave of the first level, the modulation wave of the second level, the modulation wave of the third level, the modulation wave of the fourth level, the modulation wave of the fifth level, the first-phase initial modulation wave and the second-phase initial modulation wave to obtain the common-mode modulation wave of the single-phase five-level converter; calculating the first-phase initial modulation wave, the second-phase initial modulation wave and the common-mode modulation wave to obtain the pulse width modulation wave of the single-phase five-level converter. The response speed and the reliability of a system can be improved.

More Like This:

WO/2016/091299	HIGHLY EFFICIENT POWER CONVERTER FOR SINGLE-PHASE SYSTEMS
JP5624577	Vehicle power converter

Inventors:

LIU FANGCHENG (CN)
XIN KAI (CN)
LIU YUNFENG (CN)

Application Number:

PCT/CN2018/119762

Publication Date:

July 04, 2019

Filing Date:

December 07, 2018

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H02M7/483

Foreign References:

CN108092534A	2018-05-29
CN107070258A	2017-08-18
CN106100430A	2016-11-09
CN101860244A	2010-10-13
CN102843054A	2012-12-26
US20070268052A1	2007-11-22

Other References: