Patent · US Active

Method for detecting abnormal direct current voltage measurement in high voltage flexible direct current transmission system

US12316102B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID · CN

Inventors

Qinlei Chen · Longbeilingcun, CN
Shuyong Li · Longbeilingcun, CN
Qi Guo · Shanghai, CN
Libin Huang · Hangzhou City, CN
Xuehua Lin · Longbeilingcun, CN
Zhijiang Liu · Beijing, CN
Deyang Chen · Lianyungang, CN
Chao Luo · Nanhu, CN
Guanming Zeng · Longbeilingcun, CN
Mengjun Liao · Longbeilingcun, CN
Lijun Deng · Longbeilingcun, CN
Liu Cui · Beijing, CN
Zhida Huang · Xiamen, CN
Haiping Guo · 南丰镇, CN
Tianyu Guo · Longbeilingcun, CN

Key dates

Filing date	May 18, 2022
Grant date	May 27, 2025
Priority date	—
Expiry date	May 18, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/60
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for detecting abnormal direct current voltage measurement in a modular multilevel converter high voltage direct current transmission system is provided. In the method, a valve group voltage at a detection pole is obtained, voltages at voltage measurement points at the detection pole are collected, and comparison and determination are performed based on the actual arrangement of the voltage measurement points, and then whether an abnormal measurement occurs at each of the voltage measurement points is determined.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.