Adaptive LCLC Resonant Power Supply for Compact Gliding Arc System: New Insights Into NO_x Production From Electrical Characteristics

Gliding arc discharge (GAD) is a promising route for sustainable nitrogen fixation, but its application in distributed NO_x production is constrained by the lack of compact, stable, and energy-efficient power supplies. This work introduces a compact LCLC resonant power supply with a simple structure and strong adaptability to intense load fluctuations. Compared with commercial power supplies, it produces a larger plasma area, higher NO_x concentration, and lower energy consumption. Based on its stable output, the correlations between electrical characteristics and NO_x production performance are established, and the contributions of different electrical characteristics are quantitatively evaluated. This work enables stable and efficient electrical excitation for compact GAD systems, and provides an electrical-characteristics-based approach for NO_x production analysis and real-time monitoring.