Single Phase Resonant LC Circuit Using a Bank of Self-Switched Capacitors

This paper presents a preliminary work on the feeding of an AC dipole using a resonant circuit with a varying resonant frequency. A single phase LC oscillator containing a variable capacitor is fed by a wide band amplifier or a voltage source inverter. For this purpose, a bank of switched capacitors of different values are connected to the main circuit through bidirectional switches. In order to allow zero-current and zerovoltage switching, the devices are implemented with close-control driver circuits allowing self-switching based on local polarity measurements. An innovative controller for maintaining the current in an oscillator and a regressive method for measuring alternating current with a limited number of samples are proposed and validated by experiment.


Published in:
IEEE Transactions on Industrial Electronics, 58, 9, 4175 - 4184
Year:
2011
Publisher:
Institute of Electrical and Electronics Engineers
ISSN:
0278-0046
Keywords:
Laboratories:




 Record created 2011-06-06, last modified 2018-09-13


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