Mitigation of alternating current in pipelines
AssigneeDNV GL USA, Inc.
InventorsJason Land, Shane Finneran, Thomas Yahner
Life of this patent
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Abstract
This disclosure describes systems, methods, and devices related to alternating current (AC) mitigation. An AC mitigation system may comprise a conductive portion of the pipeline, wherein the conductive portion of the pipeline is adjacent to a high voltage AC power transmission line. The AC mitigation system may comprise a ground wire connected to the conductive portion of the pipeline. The AC mitigation system may comprise a circuit electrically connected to the ground wire. The AC mitigation system may comprise a means for the conductive portion of the pipeline to route AC power through the circuit.
Claims18
A system for mitigating alternating current (AC) on one or more portions of a pipeline, the system comprising:
- a conductive portion of the pipeline, wherein the conductive portion of the pipeline is adjacent to a high voltage AC power transmission line;
- a ground wire connected to the conductive portion of the pipeline;
- a circuit electrically connected to the ground wire, wherein the circuit comprises one or more transformers, and wherein a primary circuit of at least one transformer of the one or more transformers is connected in series or in parallel to the ground wire, and a secondary circuit of the at least one transformer is connected to a load;
- and
- a means for the conductive portion of the pipeline to route AC power through the circuit.
A method for mitigating alternating current (AC) on one or more portions of pipelines comprising:
- connecting a portion of the pipeline to a ground wire, wherein the portion of the pipeline is adjacent to a high voltage AC power transmission line;
- determining the portion of the pipeline requires AC mitigation;
- connecting an AC mitigation circuit to the ground wire, wherein the AC mitigation circuit comprises at least one transformer;
- and
- causing the portion of the pipeline to route AC power through at least one circuit of the transformer.
An apparatus for mitigating alternating current (AC) on one or more portions of a pipeline, the apparatus comprising:
- a conductive portion of the pipeline, wherein the conductive portion of the pipeline is adjacent to a high voltage AC power transmission line, wherein the conductive portion of the pipeline includes a coating material;
- a ground wire connected to the conductive portion of the pipeline, wherein the ground wire is a bare ground wire connected to ground;
- an AC mitigation circuit to the ground wire, wherein the AC mitigation circuit comprises a transformer;
- and
- a means for the conductive portion of the pipeline to route AC power through the transformer.
Dependencies are inferred from the claim text.