Title:
SYNCHRONIZATION ALGORITHM REAL-TIME EVALUATION METHOD AND SYSTEM, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/128708
Kind Code:
A1
Abstract:
Provided is a synchronization algorithm real-time evaluation method. The method comprises: acquiring different synchronization algorithm models; acquiring phase angle value samples during a synchronization process; substituting the phase angle value samples into the synchronization algorithm models to acquire a predicted closing time; calculating deviations and variances of the synchronization algorithm models according to the predicted closing time; calculating reliability values of the synchronization algorithm models according to the deviations and the variances; and selecting the synchronization algorithm model with the smallest reliability value as a final algorithm model. Multiple synchronization algorithms are allowed to be used in the same apparatus, and in an application environment, each algorithm is evaluated and compared according to data obtained in real time to acquire reliability values, such that an optimal algorithm is selected according to the reliability values to perform controlling, thereby achieving the aim of improving the synchronous closing precision.
Inventors:
ZHAO YONG (CN)
SUN YANLING (CN)
LIU GUOMIN (CN)
CHENG XIAOXIA (CN)
GUO BILEI (CN)
JIANG XIN (CN)
SUN YANLING (CN)
LIU GUOMIN (CN)
CHENG XIAOXIA (CN)
GUO BILEI (CN)
JIANG XIN (CN)
Application Number:
PCT/CN2020/090942
Publication Date:
July 01, 2021
Filing Date:
May 19, 2020
Export Citation:
Assignee:
NANJING NARI WATER RESOURCES AND HYDROPOWER TECH COMPANY LIMITED (CN)
International Classes:
G05B13/04; H02J3/40; H02J3/42
Foreign References:
| CN107967538A | 2018-04-27 | |||
| CN106786780A | 2017-05-31 | |||
| CN103532469A | 2014-01-22 | |||
| JP2004023895A | 2004-01-22 | |||
| CN102170143A | 2011-08-31 | |||
| US20090055031A1 | 2009-02-26 |
Other References:
LI JIN-HONG: "Algorithm research of the automatic synchronization under difference frequence power grid using fuzzy control principle", DIANLI XITONG BAOHU YU KONGZHI/POWER SYSTEM PROTECTION AND CONTROL, vol. 37, no. 2, 16 January 2009 (2009-01-16), pages 96 - 105, XP055824605, ISSN: 1674-3415
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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