US 12,359,947 B2
Defect monitoring apparatus and detection method for transformer oil conservator based on edge computing
Jinsong Li, Shanxi (CN); Hua Yu, Shanxi (CN); Qingsong Chen, Shanxi (CN); Hong Liu, Shanxi (CN); Guodong Li, Shanxi (CN); Guangqi Mu, Shanxi (CN); Shuai Li, Shanxi (CN); Like Dong, Shanxi (CN); Jin Zhao, Shanxi (CN); Hui Yuan, Shanxi (CN); Xuan Wang, Shanxi (CN); Zhumao Lu, Shanxi (CN); Min Jiang, Shanxi (CN); Shuai Wang, Shanxi (CN); and Shengzhi Chang, Shanxi (CN)
Assigned to STATE GRID SHANXI ELECTRIC POWER RESEARCH INSTITUTE, Taiyuan (CN)
Filed by STATE GRID SHANXI ELECTRIC POWER RESEARCH INSTITUTE, Shanxi (CN)
Filed on Sep. 19, 2022, as Appl. No. 17/947,201.
Application 17/947,201 is a continuation of application No. PCT/CN2022/105947, filed on Jul. 15, 2022.
Claims priority of application No. 202111309674.6 (CN), filed on Nov. 6, 2021.
Prior Publication US 2023/0146976 A1, May 11, 2023
Int. Cl. G01D 21/02 (2006.01); G01K 7/26 (2006.01); H01F 27/14 (2006.01); H04W 88/16 (2009.01)
CPC G01D 21/02 (2013.01) [G01K 7/26 (2013.01); H01F 27/14 (2013.01); H04W 88/16 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A defect monitoring apparatus for a transformer oil conservator based on edge computing, comprising: a sensing terminal, an edge intelligent gateway, a monitoring terminal, an oil conservator defect monitoring cloud platform, a client terminal and an original oil level gauge (8) of the oil conservator, wherein the edge intelligent gateway and the monitoring terminal are both disposed in a substation; the monitoring terminal is configured to access the edge intelligent gateway; the sensing terminal comprises: an airflow sensor (5), an oil temperature sensor (6), an ambient temperature sensor (7), and a microwave oil level measurement assembly; the airflow sensor (5) is disposed on a breathing tube (3), and is configured to measure a breathing airflow rate of an oil conservator (1); the oil temperature sensor (6) is disposed at a lower portion of a side of the oil conservator (1), and a probe of the oil temperature sensor (6) extends into the oil conservator (1) and is immersed in transformer oil; the oil temperature sensor (6) is configured to measure an oil temperature of the oil conservator; the ambient temperature sensor (7) is disposed outside the oil conservator (1); the ambient temperature sensor (7) is configured to measure an ambient temperature; the microwave oil level measurement assembly is disposed at a top of an inner wall of the oil conservator (1), and the microwave oil level measurement assembly is away from a capsule (2); the microwave oil level measurement assembly is configured to measure a height of an oil level of the oil conservator;
the sensing terminal communicates with the edge intelligent gateway; the edge intelligent gateway communicates with the monitoring terminal; and the edge intelligent gateway communicates with the oil conservator defect monitoring cloud platform; and
the sensing terminal is configured to send detection data to the edge intelligent gateway, and the original oil level gauge (8) of the oil conservator is configured to send data information thereof to the edge intelligent gateway; the edge intelligent gateway is configured to store and evaluate the detection data and the data information of the original oil level gauge (8), and send an evaluation result indicating a defect and corresponding data to the oil conservator defect monitoring cloud platform; and the oil conservator defect monitoring cloud platform is configured to send an alarm command to the client terminal.