NON-INVASIVE HARMONIC MAGNETIC FIELD ENERGY HARVESTING DEVICE FOR HIGH VOLTAGE DIRECT CURRENT TRANSMISSION LINE

Abstract

The present disclosure proposes a non-invasive harmonic magnetic field energy harvesting device for a high voltage direct current (HVDC) transmission line, and the device includes an arc-shaped magnetic core and flux collectors; the arc-shaped magnetic core is located at the center of the device and the flux collectors are located at both ends of the arc-shaped magnetic core, and the device is placed near the transmission line without being snapped onto the transmission line. The designed arc-shaped magnetic core is a non-closed arc-shaped magnetic core with relatively low effective permeability, which can effectively prevent saturation of the magnetic core caused by a strong direct current. When the magnetic core is unsaturated, the alternating magnetic field generated by the harmonic current will generate an induced voltage in the coil based on electromagnetic induction, thereby enabling energy harvesting.

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