US 12,149,071 B2
High-frequency signal-based power consumer relative position identification apparatus, method and device
Sijian Zhang, Guangdong (CN); Xiaoping Zhang, Guangdong (CN); Guan Chen, Guangdong (CN); Zheng Zeng, Guangdong (CN); Zihang Huo, Guangdong (CN); and Jiaming Wu, Guangdong (CN)
Assigned to CHINA SOUTHERN POWER GRID TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 18/266,218
Filed by CHINA SOUTHERN POWER GRID TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Dec. 7, 2021, PCT No. PCT/CN2021/136042
§ 371(c)(1), (2) Date Jun. 8, 2023,
PCT Pub. No. WO2022/121887, PCT Pub. Date Jun. 16, 2022.
Claims priority of application No. 202011430866.8 (CN), filed on Dec. 9, 2020.
Prior Publication US 2023/0387716 A1, Nov. 30, 2023
Int. Cl. H02J 13/00 (2006.01); G06Q 50/06 (2024.01)
CPC H02J 13/00002 (2020.01) [G06Q 50/06 (2013.01); H02J 13/00007 (2020.01)] 4 Claims
OG exemplary drawing
 
1. A device for determining relative positions of power consumers based on a high-frequency signal, applied to a distribution transformer supply zone, wherein the device comprises:
a resonance or signal generator and a direction detector, the resonance or signal generator is disposed in a user electricity meter the direction detector is disposed on a power line, the resonance or signal generator is configured to transmit a high-frequency signal or generate resonance in response to the high-frequency signal;
the direction detector is configured to monitor a voltage and a current of the high-frequency signal inputted into the user electricity meter, and determine, based on a phase difference between the voltage and the current, a relative position relationship of two adjacent user electricity meters on the power line disposed with the direction detector;
wherein a number of the user electricity meters at the distribution transformer supply zone is at least two the two user electricity meters are connected in parallel between a neutral wire and a live wire;
the live wire for the two user electricity meters serves as the power line; each of the user electricity meters is provided with the resonance or signal generator and the two user electricity meters are referred to as a first user electricity meter and a second user electricity meter; and
the direction detector is further configured to: obtain a phase difference from the current and the voltage flowing into the second user electricity meter determine that the second user electricity meter is located downstream of the first user electricity meter, in a case that an absolute value of the phase difference is less than 90 degrees; and determine that the second user electricity meter is located upstream of the first user electricity meter, in a case that the absolute value of the phase difference is greater than 90 degrees and less than 180 degrees.