Title:
HYBRID CIRCUIT BREAKER BASED ON LINE INDUCTANCE ENERGY SELF-MEASUREMENT, AND STORAGE MEDIUM THEREOF AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/087429
Kind Code:
A1
Abstract:
The present invention relates to a hybrid circuit breaker based on line inductance energy self-measurement, and a storage medium thereof and a control method therefor. The method comprises: when a hybrid circuit breaker receives a pull-in instruction, controlling a solid-state switch, which serves as a current transfer branch, in the hybrid circuit breaker to be turned on; and at the beginning of the pull-in of the current transfer branch, measuring line inductance energy W of a main loop where the hybrid circuit breaker is located, and if the line inductance energy W exceeds a first set threshold value, controlling the current transfer branch to be turned off and terminating turn-on control logic of the hybrid circuit breaker, otherwise, controlling a mechanical switch, which serves as a main through-flow branch, in the hybrid circuit breaker to be turned on, and turning off the current transfer branch after the main through-flow branch is completely pulled in. By means of the present invention, a line inductance energy protection mode is added on the basis of a traditional hybrid circuit breaker protection mode, such that not only is the usage range of a hybrid circuit breaker expanded, but the adaptability of the hybrid circuit breaker is also enhanced without increasing the cost.
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Inventors:
LIAO XIAOBIN (CN)
ZHAN BAIQING (CN)
SHENG JIANKE (CN)
YANG SHENGQUAN (CN)
ZHAN BAIQING (CN)
SHENG JIANKE (CN)
YANG SHENGQUAN (CN)
Application Number:
PCT/CN2021/136554
Publication Date:
May 25, 2023
Filing Date:
December 08, 2021
Export Citation:
Assignee:
GUANGDONG FULLDE ELECTRONICS CO LTD (CN)
ZHUZHOU FULLDE RAIL TRANSIT RES INST CO LTD (CN)
HUNAN FULLDE ELECTRICAL CO LTD (CN)
ZHUZHOU FULLDE RAIL TRANSIT RES INST CO LTD (CN)
HUNAN FULLDE ELECTRICAL CO LTD (CN)
International Classes:
H02H7/22; H01H9/54; H01H47/00
Foreign References:
| CN110932245A | 2020-03-27 | |||
| CN111478296A | 2020-07-31 | |||
| CN104810807A | 2015-07-29 | |||
| CN112838561A | 2021-05-25 | |||
| US20210257832A1 | 2021-08-19 | |||
| JP2017130391A | 2017-07-27 |
Attorney, Agent or Firm:
DONGGUAN CHUANGBO INTELLECTUAL PROPERTY AGENCY OFFICE (CN)
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