基于ZVS双管自激电路的等离子体电源设计

目前，等离子体激励电源通常以工频交流电作为供电输入，并且体积较大，与便携式等离子体发生装置不匹配，限制了等离子体技术的应用与推广。以此为研究背景，开展了便携式介质阻挡放电电源的设计与研究。该电源重量为200 g，体积为102 mm×57 mm×30 mm。电源主电路采用ZVS双管自激电路。通过电路仿真软件辅助设计主电路，并进行了实验测试。结果表明，当电源输入电压为3 ~12 V时，输出电压可达2 ~ 5 kV、输出频率可在20 ~ 30 kHz范围内变化，最大输出功率为60 W，功率重量比为300 W/kg，高于目前商品化高频高压等离子体电源。采用设计的电源能够成功激发沿面型介质阻挡放电（SDBD）等离子体发生器和悬浮电极介质阻挡放电（FE-DBD）柔性等离子体发生器产生冷等离子体，并对相关特性进行了实验研究，满足了大气压开放条件下空气介质阻挡放电工作电压2 ~ 20 kV、工作频率50 Hz ~ 1 MHz的要求，为介质阻挡放电电源的便携性提供了良好的技术支撑。

Design of Plasma Power Supply Based on ZVS Dual-tube Self-excited Circuit

At present, the plasma excitation power supply usually uses power frequency alternating current as the power supply input, and is large in size and does not match the portable plasma generator, which limits the application and promotion of plasma technology. With this as the research background, the design and research of portable dielectric barrier discharge power supplies have been carried out. The weight of the power supply is 200 g, the volume is 102 mm×57 mm×30 mm and the main circuit of the power supply adopts a ZVS dual-tube self-excited circuit. The main circuit is assisted by circuit simulation software, and experimental tests are carried out. The results show that when the input voltage of the power supply is 3 ~ 12 V, the output voltage can reach 2 ~ 5 kV, the output frequency can vary in the range of 20 ~ 30 kHz, the maximum output power is 60 W, and the power weight ratio is 300 W/kg, which is higher than the current commercial high frequency and high voltage plasma power supply. The designed power supply can successfully excite the surface dielectric barrier discharge (SDBD) plasma generator and the floating electrode dielectric barrier discharge (FE-DBD) flexible plasma generator to produce cold plasma, and the related characteristics are experimentally studied. It meets the requirements of air dielectric barrier discharge working voltage 2-20 kV and working frequency 50 Hz-1 MHz under atmospheric pressure open conditions, and provides good technical support for the portability of the dielectric barrier discharge power supply.