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US 12,470,127 B1Granted
Power supply module responsive to high and low line currents
AssigneeSmart Wires Inc.
InventorGovind Chavan
Life of this patent
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Abstract
A power supply module harvests power at low and high line currents of a power transmission line. The power supply module uses a current transformer, which may power controllers. The current transformer has a single turn primary winding, which can be coupled to a power transmission line, and a single secondary winding connected to the power supply module.
Claims4
A power flow control system, comprising:
- an impedance injection module having a first controller, a direct current (DC) link capacitor, and switches configured to charge and discharge the DC link capacitor according to the first controller;
- a bypass module having a second controller and circuitry configured to bypass fault currents around the impedance injection module;
- and
- a power supply module operable to harvest power from line current in a power transmission line, using a current transformer, to power at least one of the first controller or the second controller;
- wherein the current transformer has a single turn primary winding, coupleable to the power transmission line, and a single secondary winding, on a core material having high permeability, and wherein the power supply module is to harvest the power through the single secondary winding and is operable to withstand a peak fault current up to 180 kiloamperes (kA) and a root mean square (RMS) current up to 63 kA having a duration of one second.
2 more elements
Dependencies are inferred from the claim text.