Electromagnetic Interference Mitigation in a High Voltage Inspection Robot
A challenge in developing any electronic system to be operated near high voltage power lines, is achieving reliability in environments associated with electromagnetic interference. In this paper, success was achieved in the characterization and mitigation of the effects of the interference that an inspection robot would experience during proximity dielectric breakdown, electromagnetic coupling and electric arcing to a robot chassis. The source (electric arc) tested was found to couple to communication lines with a magnitude disruptive to Universal Serial Bus communications. Shielding was adequate to mitigate this interference, but when arcing occurred to the chassis itself, it needed to be controlled to maintain the integrity of the shield.
KeywordsInspection Robot Shielding
The authors would like to thank Eskom TESP, THRIP and the NRF for funding this research.
- 1.Weston, D.: Electromagnetic Compatibility Principles and Applications, pp. 2–5. Marcel Dekker, New York (2001)Google Scholar
- 3.Paul, C., Whites, K., Nasar, S.: Introduction to Electromagnetic Fields, pp. 511–577. McGraw-Hill, Boston (1997)Google Scholar
- 4.Maruvada, S.: Corona in Transmission Systems, pp. 189–197. Crown Publications, Johannesburg (2011)Google Scholar
- 6.Giussani, R., Cotton, I., Sloan, R.: Detection of corona with RF methods and spectra analysis. In: IEEE International Symposium on Electrical Insulation, San Juan (2012)Google Scholar
- 9.Kuffel, J., Kuffel, P.: High Voltage Engineering Fundamentals, pp. 287–364. Elsevier, Amsterdam (2000)Google Scholar
- 13.Williams, T.: EMC for Systems and Installations. Newnes, Oxford (2000)Google Scholar
- 14.Chatterton, P., Houlden, M.: EMC Electromagnetic Theory to Practical Design, pp. 145–149. Wiley, New York (1992)Google Scholar
- 15.Anderson, D., Dzatko, D.: Universal Serial Bus System Architecture, pp. 13–17. Addison-Wesley Developers Press, Boston (2001)Google Scholar
- 16.Axelson, J., Complete, U.S.B.: The Developer’s Guide. Lakeview Research LLC, Chinook (2009)Google Scholar