Title:
POWER ANALYSIS METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/219708
Kind Code:
A1
Abstract:
A power analysis method and device. The power analysis method comprises: performing wideband sampling on voltage signals and/or current signals to obtain voltage sampling data and/or current sampling data (S101); dividing the voltage sampling data and/or the current sampling data into two paths of data for transmission (S102); in the transmission, performing normal power parameter calculation on the first path of data to obtain the normal power parameter calculation result, and performing fundamental wave decomposition on the second path of data to obtain a fundamental wave component (S103); and calculating a power parameter in a non-sinusoidal imbalanced condition according to the normal power parameter calculation result and the fundamental wave component, so as to obtain a non-sinusoidal unbalanced power parameter calculation result (S104), and to achieve the objective of accurately measuring a power parameter in the non-sinusoidal unbalanced condition.
Inventors:
ZHOU LIGONG (CN)
Application Number:
PCT/CN2017/076395
Publication Date:
December 28, 2017
Filing Date:
March 13, 2017
Export Citation:
Assignee:
GUANGZHOU ZHIYUAN ELECTRONICS CO LTD (CN)
International Classes:
G01R21/133; G01R22/10
Foreign References:
| CN205786837U | 2016-12-07 | |||
| CN102331535A | 2012-01-25 | |||
| CN101788604A | 2010-07-28 | |||
| CN101762743A | 2010-06-30 | |||
| CN203149053U | 2013-08-21 | |||
| CN103454530A | 2013-12-18 | |||
| CN101055299A | 2007-10-17 | |||
| US5072187A | 1991-12-10 |
Other References:
YANG, XUESONG ET AL.: "Study on IEEE Std 1459-2010 Power Theory And Its Application", MASTER THESIS, 15 April 2016 (2016-04-15), pages 1 - 84, XP009515627, ISSN: 1674-0246
See also references of EP 3477313A4
See also references of EP 3477313A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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