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Strong and Weak Electric Field Interfering: Capacitive Icing Detection and Capacitive Energy Harvesting on a 220-kV High-Voltage Overhead Power Line

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4 Author(s)
Michael J. Moser ; Inst. of Electr. Meas. & Meas. ment Signal Process., Graz Univ. of Technol., Graz, Austria ; Thomas Bretterklieber ; Hubert Zangl ; Georg Brasseur

This paper focuses on problems which arise when both a power-harvesting system based on a capacitive principle and a capacitive measurement device [i.e., a capacitance-to-digital converter (CDC)] are used in one electronic system to build up an autonomous measurement device for icing detection on a high-voltage overhead power line. The overall capacitance of the measurement circuitry between the conductor and the energy harvester shell must remain within a well-defined range to keep the energy-harvesting circuitry operational and to operate the CDC within its specifications. A decoupling solution for both the data path and the power supply unit has been implemented and verified experimentally in a high-voltage laboratory and a field test.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:58 ,  Issue: 7 )