强激光与粒子束, 2016, 28 (4): 045013, 网络出版: 2016-04-01
面向等离子体合成射流应用的微秒脉冲源研制
Compact microsecond-pulse generator for plasma synthetic jet
等离子体合成射流 激励器 微秒脉冲源 放电电容 能量消耗率 plasma synthetic jet actuator microsecond pulse power discharge capacitor rate of energy dissipated
摘要
为了产生高能等离子体合成射流,设计了一台面向等离子体合成射流应用的微秒脉冲源,输出电压为10 kV,重复频率为100 Hz,可承受高达250 A的放电电流。详细介绍了微秒脉冲源的工作原理,比较了不同放电电容对脉冲变压器原边电流及输出电压的影响。进一步将所设计的微秒脉冲源成功应用于等离子体合成射流实验中,研究了不同间距对等离子体合成射流的影响,比较了有无放电电容条件下的能量消耗率。实验结果表明: 不同放电电容在相同激励器间距的条件下,击穿电压基本相同; 击穿电压随激励器间距增大而增大。有放电电容能产生较大的放电电流,且电流值随电容值的增大而增大。有放电电容条件下的能量消耗率比无放电电容要高,易于产生高能的等离子体合成射流。
Abstract
In order to generate a high-energy plasma synthetic jet, a compact microsecond-pulse power supply is developed and tested. The maximum output voltage is 10 kV with a pulse repetition rate of 100 Hz and the generator can withstand a discharge current with an amplitude of 250 A. Moreover, the working principle of the generator is introduced and the effect of different capacitor on the primary current and output voltage is compared. Furthermore, the designed generator is successfully used for generating plasma synthetic jet. The effect of the gap distance on the plasma synthetic jet is analyzed. The ratio of dissipation energy at different discharge capacitors is compared. The results show that: The breakdown voltage for different discharge capacitors has a similar value at the same gap distance. The breakdown voltage increases with the gap distance. In addition, large discharge current can be generated when the discharge capacitor is used. The discharge current increases with the value of the discharge capacitor. The ratio of dissipation energy is higher in the case with discharge capacitor than that in the case without discharge capacitor. Under such conditions, it is easy to generate a high-energy plasma synthetic jet.
王磊, 章程, 罗振兵, 王林, 严萍, 邵涛. 面向等离子体合成射流应用的微秒脉冲源研制[J]. 强激光与粒子束, 2016, 28(4): 045013. Wang Lei, Zhang Cheng, Luo Zhenbing, Wang Lin, Yan Ping, Shao Tao. Compact microsecond-pulse generator for plasma synthetic jet[J]. High Power Laser and Particle Beams, 2016, 28(4): 045013.