Inductive coupling characteristics of air-core toroid coil and its application in power line communication
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In this study, a circular solenoid, which is the basic structure of a non-contact current sensor, was modified and applied to an air-core inductive coupler for power line communication. The COMSOL AC/DC module, a multiphysics modeling package software, was used for modeling and inductive coupling analysis of the proposed coupler. Based on the analysis results, circular coils with 5, 10, and 20 windings were fabricated using plastic bobbins and RF cables. In terms of the frequency spectrum response of these coils, the 10-turn coil is the most suitable for broadband power line communications with a frequency band of 2–35 MHz. In the 10-turn coil inductive coupler performance test, we used Jperf, a type of network traffic measurement program, to measure the data rate and jitter on a 30 m power line. The average data rate measured repeatedly at 1-s intervals for 30 s was 7 Mbps, and very stable communication was achieved without errors or jitter during testing.
Abstract
In this study, a circular solenoid, which is the basic structure of a non-contact current sensor, was modified and applied to an air-core inductive coupler for power line communication. The COMSOL AC/DC module, a multiphysics modeling package software, was used for modeling and inductive coupling analysis of the proposed coupler. Based on the analysis results, circular coils with 5, 10, and 20 windings were fabricated using plastic bobbins and RF cables. In terms of the frequency spectrum response of these coils, the 10-turn coil is the most suitable for broadband power line communications with a frequency band of 2–35 MHz. In the 10-turn coil inductive coupler performance test, we used Jperf, a type of network traffic measurement program, to measure the data rate and jitter on a 30 m power line. The average data rate measured repeatedly at 1-s intervals for 30 s was 7 Mbps, and very stable communication was achieved without errors or jitter during testing.
참고문헌 (13)
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