摘要
为了产生适合水面上等离子体激发的方波脉冲,选取快速MOSFET为主开关管,采用串心磁环隔离同步驱动的方案,设计了正极性Marx脉冲源。放电实验结果表明,用于罗丹明溶液处理最大输出电压幅值20kV,最大脉冲电流为17A,最小脉宽约为400ns,其上升沿和下降沿约100ns左右,重复频率为1kHz。液体处理放电实验中对比了不同参数的高压脉冲下的处理效果,结果表明等离子体放电能有效去除罗丹明,其电场强度和脉冲频率为主要影响因素,也验证了脉冲宽度对其影响不大。
In order to generate a square wave pulse suitable for plasma excitation on the water surface, we select a fast MOSFET as the main switching tube and use a series-core magnetic ring isolation synchronous driving scheme to design a positive magnetic Marx pulse source. The discharge experiment results show that the maximum output voltage amplitude for the rhodamine solution treatment is 20 kV, the maximum pulse current is 17 A, the minimum pulse width is about 400 ns, the rising edge and the falling edge are about 100 ns, and the repetition frequency is 1 kHz. In the liquid treatment discharge experiment, the treatment effects under different high voltage pulses were compared. The results show that the plasma discharge can effectively remove Rhodamine, and its electric field strength and pulse frequency are the main influencing factors. It is also verified that the pulse width has little effect on it.
作者
刘坚
Liu Jian(School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)
出处
《农业装备与车辆工程》
2019年第8期120-123,共4页
Agricultural Equipment & Vehicle Engineering
