Title:
ULTRA-LOW FREQUENCY VOLTAGE AC-DC CONVERSION VERIFICATION SYSTEM AND METHOD BASED ON QUANTUM TECHNOLOGY
Document Type and Number:
WIPO Patent Application WO/2023/040264
Kind Code:
A1
Abstract:
An ultra-low frequency voltage AC-DC conversion verification system and method based on quantum technology, wherein the system comprises a quantum voltage generation system (1), a low-frequency signal source (2), a follower (3), three switches (4, 5, 6), a double-heating-wire thermoelectric converter (7), a nanovoltmeter (8), a clock source (9), a high-precision digital sampling system (10), and an upper computer (11). On the basis of DC and AC quantum voltage technology, and in combination with a double-heating-wire thermoelectric converter, an ultra-low frequency voltage is traced to a DC quantum voltage by means of AC-DC conversion, the conversion result is compared with an AC quantum voltage for verification, so that the accuracy of ultra-low frequency voltage AC-DC conversion and the rationality of the uncertainty evaluation result are verified, thereby ensuring the reliability of the ultra-low frequency voltage AC-DC conversion, and solving the problem that the ultra-low frequency voltage AC-DC conversion result cannot be verified.
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Inventors:
XU QING (CN)
SHI ZHAOMIN (CN)
PAN XIANLIN (CN)
SONG YING (CN)
ZHOU TIANDI (CN)
DUAN MEIMEI (CN)
TIAN ZHENGQI (CN)
ZHAO SHUANGSHUANG (CN)
SHI ZHAOMIN (CN)
PAN XIANLIN (CN)
SONG YING (CN)
ZHOU TIANDI (CN)
DUAN MEIMEI (CN)
TIAN ZHENGQI (CN)
ZHAO SHUANGSHUANG (CN)
Application Number:
PCT/CN2022/088663
Publication Date:
March 23, 2023
Filing Date:
April 24, 2022
Export Citation:
Assignee:
STATE GRID JIANGSU ELECTRIC POWER CO LTD MARKETING SERVICE CENTER (CN)
NAT INST METROLOGY CHINA (CN)
NAT INST METROLOGY CHINA (CN)
International Classes:
G01R19/22
Foreign References:
| CN113687135A | 2021-11-23 | |||
| CN111537932A | 2020-08-14 | |||
| CN112162231A | 2021-01-01 | |||
| CN102520237A | 2012-06-27 | |||
| CN109239643A | 2019-01-18 | |||
| CN105628992A | 2016-06-01 | |||
| CN106771556A | 2017-05-31 | |||
| US20200373475A1 | 2020-11-26 | |||
| JP2014109525A | 2014-06-12 |
Other References:
SHI ZHAOMIN, ZHANG JIANGTAO; PAN XIANLIN; SONG YING: "Research on Key Technologies of Ultra-Low Frequency Voltage Traceability", METROLOGY SCIENCE AND TECHNOLOGY, vol. 65, no. 5, 31 May 2021 (2021-05-31), pages 30 - 35, XP093047896, ISSN: 2096-9015, DOI: 10.12338/j.issn.2096-9015.2020.9011
SHI ZHAOMIN |, JIANGTAO ZHANG, XIANLIN PAN, YING SONG: "Analysis on the key parameters of ac-dc transfer system for ultra-low frequency voltage", CHINESE JOURNAL OF SCIENTIFIC INSTRUMENT, vol. 41, no. 11, 30 November 2020 (2020-11-30), pages 82 - 89, XP093047894, DOI: 10.19650/j.cnki.cjsi.J2006609
JIA ZHENGSEN, WANG LEI; ZHANG JIANGTAO; PAN XIANLIN; SHI ZHAOMIN; HE QING: "Application of AC Josephson Quantum Voltage in Electromagnetic Measurement", MEASUREMENT TECHNIQUE, no. 8, 31 August 2020 (2020-08-31), XP093047890, ISSN: 1000-0771, DOI: 10.3969/j.issn.1000-0771.2020.08.09
SHI ZHAOMIN; ZHANG JIANGTAO; PAN XIANLIN; JIA ZHENGSEN; SONG YING; MA XUEFENG; HE QING: "AC-DC Transfer System for Ultra-low Frequency Voltage", 2020 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM), IEEE, 24 August 2020 (2020-08-24), pages 1 - 2, XP033823733, DOI: 10.1109/CPEM49742.2020.9191901
SHI ZHAOMIN |, JIANGTAO ZHANG, XIANLIN PAN, YING SONG: "Analysis on the key parameters of ac-dc transfer system for ultra-low frequency voltage", CHINESE JOURNAL OF SCIENTIFIC INSTRUMENT, vol. 41, no. 11, 30 November 2020 (2020-11-30), pages 82 - 89, XP093047894, DOI: 10.19650/j.cnki.cjsi.J2006609
JIA ZHENGSEN, WANG LEI; ZHANG JIANGTAO; PAN XIANLIN; SHI ZHAOMIN; HE QING: "Application of AC Josephson Quantum Voltage in Electromagnetic Measurement", MEASUREMENT TECHNIQUE, no. 8, 31 August 2020 (2020-08-31), XP093047890, ISSN: 1000-0771, DOI: 10.3969/j.issn.1000-0771.2020.08.09
SHI ZHAOMIN; ZHANG JIANGTAO; PAN XIANLIN; JIA ZHENGSEN; SONG YING; MA XUEFENG; HE QING: "AC-DC Transfer System for Ultra-low Frequency Voltage", 2020 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM), IEEE, 24 August 2020 (2020-08-24), pages 1 - 2, XP033823733, DOI: 10.1109/CPEM49742.2020.9191901
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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