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51313-02444-Study on AC Interference Mitigation Design Methods for Buried Pipelines

Picture for Study on AC Interference Mitigation Design Methods for Buried Pipelines
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Product Number: 51313-02444-SG
ISBN: 02444 2013 CP
Author: Yanxia Du
Publication Date: 2013
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With rapid development of infrastructure in the recent years more and more buried pipelines are laid parallel with or adjacent to high-voltage transmission lines and severe AC interference is caused. Therefore an effective mitigation scheme is very important in reducing the AC interference risks. In this work two different mitigation scheme design methods are studied for two practical cases. One is for single point in which a temporary mitigation ground bed is buried and then the required bed resistance is estimated based on the resistance of temporary bed above and its mitigation result. The other method is to use computer software and AC interference model in which the mitigation results are compared for different schemes and thus the best bed laying method is determined. Through these two practical cases the factors influencing the mitigation schemes accuracy as well as the principles of parameters selection are studied. The results are valuable in providing reference for the mitigation scheme design of practical engineering projects.

With rapid development of infrastructure in the recent years more and more buried pipelines are laid parallel with or adjacent to high-voltage transmission lines and severe AC interference is caused. Therefore an effective mitigation scheme is very important in reducing the AC interference risks. In this work two different mitigation scheme design methods are studied for two practical cases. One is for single point in which a temporary mitigation ground bed is buried and then the required bed resistance is estimated based on the resistance of temporary bed above and its mitigation result. The other method is to use computer software and AC interference model in which the mitigation results are compared for different schemes and thus the best bed laying method is determined. Through these two practical cases the factors influencing the mitigation schemes accuracy as well as the principles of parameters selection are studied. The results are valuable in providing reference for the mitigation scheme design of practical engineering projects.

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