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The Implementation of a Cost-Efficient Damped AC Testing Methodology for Transmission Cables Based on DC-AC Conversion and Distributed Partial Discharge Detection
  • +8
  • yuxin lu,
  • Hongjie Li,
  • Yu Zhang,
  • jing hu,
  • lin yin,
  • Weisheng He,
  • nianping yan,
  • tangbing li,
  • jianzhang zou,
  • Yuan Yan,
  • longwu zhou
yuxin lu
State Grid Jiangxi Electric Power Co Ltd Electric Power Research Institute
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Hongjie Li
Xi'an Jiaotong University
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Yu Zhang
State Grid Jiangxi Electric Power Co Ltd Electric Power Research Institute
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jing hu
State Grid Jiangxi Electric Power Co Ltd Electric Power Research Institute
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lin yin
State Grid Jiangxi Electric Power Co Ltd
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Weisheng He
Chongqing University of Posts and Telecommunications

Corresponding Author:[email protected]

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nianping yan
State Grid Jiangxi Electric Power Co Ltd Electric Power Research Institute
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tangbing li
State Grid Jiangxi Electric Power Co Ltd Electric Power Research Institute
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jianzhang zou
State Grid Jiangxi Electric Power Co Ltd Electric Power Research Institute
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Yuan Yan
Xi'an Jiaotong University
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longwu zhou
State Grid Jiangxi Electric Power Co Ltd Electric Power Research Institute
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Abstract

This study developed a damped alternating current (DAC) testing methodology, composed of an improved DAC generator and a pulse-based distributed PD-detection technique. The improved DAC generator lacks high voltage (HV) solid-state switches and is thus a cost-efficient solution for field-testing voltage generation via a direct current–alternating current (DC-AC) conversion technique. A capacitor bank is used for power supply to achieve the requirement for high instantaneous power. In addition, the use of a distributed PD detection technique enables high sensitivity and makes the method free from restrictions of the cable length. To reduce the construction cost of the distributed PD-detection system, a pulse synchronization technique is used. Attempts was made to reduce the weight based on the simulations, and a prototype with the total weight of 850kg was designed and developed for a 64/110kV power cable. Laboratory and field tests validated the effectiveness of the cost-efficient DAC testing methodology.
17 Jun 2024Submitted to IET Generation, Transmission & Distribution
17 Jun 2024Review(s) Completed, Editorial Evaluation Pending
21 Jun 2024Reviewer(s) Assigned
06 Aug 2024Editorial Decision: Revise Minor
16 Aug 20241st Revision Received
19 Aug 2024Assigned to Editor
19 Aug 2024Submission Checks Completed
19 Aug 2024Review(s) Completed, Editorial Evaluation Pending
19 Aug 2024Reviewer(s) Assigned
04 Sep 2024Editorial Decision: Accept