Title:
RECURSIVE ITERATION-BASED DIGITAL SOURCE QUANTIZATION ERROR REDUCTION METHOD, APPARATUS, AND DEVICE, STORAGE MEDIUM, AND COMPUTER PROGRAM PRODUCT
Document Type and Number:
WIPO Patent Application WO/2022/199349
Kind Code:
A1
Abstract:
A recursive iteration-based digital source quantization error reduction method, apparatus, and device, a storage medium, and a computer program product. The method comprises: determining an ideal continuous sinusoidal signal according to acquired signal parameters, and performing discretization processing on the ideal continuous sinusoidal signal to obtain a discrete waveform digital signal (101); converting the discrete waveform digital signal according to a preset protocol format to obtain a waveform digital signal subjected to protocol conversion (102); and using a recursive iteration half-bit quantization method to perform least significant bit correction on the waveform digital signal subjected to protocol conversion to obtain a waveform digital signal subjected to quantization correction (103). The level of the quantization error is changed from the level of a single discrete value to the level of a whole cycle, the degree of distortion of a digital source output waveform is reduced, and the accuracy of digital electricity traceability is improved.
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Inventors:
MENG JING (CN)
BAI JINGFEN (CN)
JIANG YIQIN (CN)
ZHANG MI (CN)
XU XITONG (CN)
YANG YUBO (CN)
DUAN YONGXIAN (CN)
SONG XIAOHUI (CN)
CEN WEI (CN)
ZHANG LI (CN)
GENG AILING (CN)
JIA FUQUAN (CN)
GE YANAN (CN)
LI HUA (CN)
WANG MENG (CN)
BAI JINGFEN (CN)
JIANG YIQIN (CN)
ZHANG MI (CN)
XU XITONG (CN)
YANG YUBO (CN)
DUAN YONGXIAN (CN)
SONG XIAOHUI (CN)
CEN WEI (CN)
ZHANG LI (CN)
GENG AILING (CN)
JIA FUQUAN (CN)
GE YANAN (CN)
LI HUA (CN)
WANG MENG (CN)
Application Number:
PCT/CN2022/079063
Publication Date:
September 29, 2022
Filing Date:
March 03, 2022
Export Citation:
Assignee:
CHINA ELECTRIC POWER RES INST (CN)
STATE GRID CORP CHINA (CN)
STATE GRID CORP CHINA (CN)
International Classes:
G01R22/00; G01R35/04
Foreign References:
| CN113156204A | 2021-07-23 | |||
| CN103543430A | 2014-01-29 | |||
| CN1607392A | 2005-04-20 | |||
| CN203465409U | 2014-03-05 | |||
| CN111413914A | 2020-07-14 | |||
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| CN105093157A | 2015-11-25 | |||
| JP2006090923A | 2006-04-06 | |||
| US5325048A | 1994-06-28 |
Other References:
ZHENG XIN, LEI MING;RONG XIANJIN;SUN JING;HAN WENJIE;TIAN JIANQIANG: "The Quantization Error of IEC61850-9-2 in Metering Device Calibration", ZIDONGHUA YU YIQI YIBIAO - PROCESS AUTOMATION INSTRUMENTATION., CHONGQING GONGYE ZIDONGHUA YIBIAO YANJIUSUO, CN, vol. 222, 30 April 2018 (2018-04-30), CN , pages 114 - 118, XP055970761, ISSN: 1001-9227, DOI: 10.14016/j.cnki.1001-9227.2018.04.114
WANG BINJI, YI TANG, QINGCHUAN ZENG, BO JIANG: "The quantization error of IEC 61850-9-1 /2 in digital energy metering", ELECTRICAL MEASUREMENT & INSTRUMENTATION, vol. 53, no. 4, 25 February 2016 (2016-02-25), XP055970764, ISSN: 1001-1390
WANG BINJI, YI TANG, QINGCHUAN ZENG, BO JIANG: "The quantization error of IEC 61850-9-1 /2 in digital energy metering", ELECTRICAL MEASUREMENT & INSTRUMENTATION, vol. 53, no. 4, 25 February 2016 (2016-02-25), XP055970764, ISSN: 1001-1390
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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