Zero-voltage-switching multiresonant technique-a novel approach to improve performance of high-frequency quasi-resonant converters

1989 ◽  
Vol 4 (4) ◽  
pp. 450-458 ◽  
Author(s):  
W.A. Tabisz ◽  
F.C.Y. Lee
Keyword(s):  
High Frequency ◽  
Resonant Converters ◽  
Improve Performance ◽  
Zero Voltage Switching ◽  
Novel Approach ◽  
Zero Voltage ◽  
Voltage Switching

Harmonic Investigation and Simulation of Full Bridge LCL Resonant Inverter

2011 ◽  
Vol 403-408 ◽  
pp. 3600-3607
Author(s):  
S. Selvaperumal ◽  
C.Christober Asir Rajan
Keyword(s):  
Power Systems ◽  
High Frequency ◽  
Harmonic Distortion ◽  
Total Harmonic Distortion ◽  
Zero Voltage Switching ◽  
Resonant Inverter ◽  
Ac Power ◽  
Resistive Loads ◽  
Zero Voltage ◽  
Voltage Switching

This paper presents 250W, 20 KHz LCL resonant inverter having Efficiencies greater than 95% were obtained down to resistive loads of 50%. Efficiencies greater than 80% were obtained at significantly reduced loads (11%). Operation above resonance was utilized to increase the efficiency and maintain zero voltage switching (ZVS) for varied loads. Total harmonic distortion (THD) of less than 8% was achieved for all resistive loads. The above results were obtained from evaluation version of PSIM also used to model the LCL topology for varied loads and LCL configurations. A LCL Resonant Inverter is proposed for applications in high frequency distributed AC power systems.

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