Study on double resonant performance of air-core spiral tesla transformer applied in repetitive pulsed operation

Air-core Tesla transformer combined with semiconductor devices can generate repetitive high-voltage pulses effectively. Air-core Tesla transformer of spiral type is suitable for repetitive operation since its primary voltage is relatively low. Based on the double resonance circuit of air-core Tesla transformer, the expressions of secondary voltage, primary current, and the maximum rise-rate of primary current are deduced. The effects of tuning characteristic on the output voltage and energy efficiency are simulated, and further verified by experiments. An air-core Tesla transformer prototype of spiral type is developed. To achieve repetitive operation, a resonant charging and discharging circuit based on air-core Tesla transformer is designed. The repetitive system based on this prototype can generate microsecond pulses with an average peak voltage of -140 kV at 300 Hz repetition rate. In repetitive mode, the tuning ratio is recommended to range in 1.0-2.0 to achieve high energy efficiency. The output voltage could be higher by increasing the charging voltage or tuning ratio.

[1]  S. Korovin,et al.  Compact 1000 pps high-voltage nanosecond pulse generator , 1997 .

[2]  Yang Yu,et al.  A Compact Repetitive Unipolar Nanosecond-Pulse Generator for Dielectric Barrier Discharge Application , 2010, IEEE Transactions on Plasma Science.

[3]  J. R. Reed.  Designing triple resonance Tesla transformers of arbitrary modal frequency ratio , 2006 .

[4]  E. M. Costa.  Resonance on Coils Excited by Square Waves: Explaining Tesla Transformer , 2010, IEEE Transactions on Magnetics.

[5]  Marco Denicolai,et al.  Optimal performance for Tesla transformers , 2002 .

[6]  Guo Wen-hui,et al.  A repetitive high-current pulsed accelerator—TPG700 , 2008, 2008 17th International Conference on High Power Particle Beams (BEAMS).

[7]  Sylvain Pinguet,et al.  Short-Pulse Marx Generator for High-Power Microwave Applications , 2013, IEEE Transactions on Plasma Science.

[8]  Xibo Feng,et al.  Fast switching thyristor applied in nanosecond-pulse high-voltage generator with closed transformer core. , 2013, The Review of scientific instruments.

[9]  A. Fridman,et al.  Non-thermal atmospheric pressure discharges , 2005 .

[10]  S. D. Korovin,et al.  Repetitively pulsed high-current accelerators with transformer charging of forming lines , 2003 .

[11]  H. Akiyama,et al.  Application of Nanosecond Pulsed Power to Ozone Production by Streamer Corona , 2008, IEEE Transactions on Plasma Science.

[12]  T. Sakugawa,et al.  Industrial Applications of Pulsed Power Technology , 2007, IEEE Transactions on Dielectrics and Electrical Insulation.

[13]  Bucur M. Novac,et al.  Fast and accurate two-dimensional modelling of high-current, high-voltage air-cored transformers , 2005 .

[14]  E. L. Neau.  Environmental and industrial applications of pulsed power systems , 1993 .

[15]  H. Bernhoff,et al.  Calculating the coupling factor in a multilayer coaxial transformer with air core , 2004, IEEE Transactions on Magnetics.

[17]  Yu Zhang,et al.  Output Characteristics of a Kind of High-Voltage Pulse Transformer With Closed Magnetic Core , 2010, IEEE Transactions on Plasma Science.

[18]  Cheng Zhang,et al.  Excitation of atmospheric pressure uniform dielectric barrier discharge using repetitive unipolar nanosecond-pulse generator , 2010, IEEE Transactions on Dielectrics and Electrical Insulation.

[19]  R. Miles,et al.  Modeling of air plasma generation by repetitive high-voltage nanosecond pulses , 2002 .

[20]  Valery G. Shpak,et al.  The RADAN series of compact pulsed power Generators and their applications , 2004, Proceedings of the IEEE.

[21]  Johann W. Kolar,et al.  Using Transformer Parasitics for Resonant Converters—A Review of the Calculation of the Stray Capacitance of Transformers , 2005, IEEE Transactions on Industry Applications.