指数型径向阻抗变换器功率传输效率的优化设计

王勐; 邹文康; 陈林; 关永超; 付佳斌; 谢卫平

doi:doi:10.3788/hplpb20112308.2252

强激光与粒子束, 2011, 23 (8): 2252, 网络出版: 2011-09-20

指数型径向阻抗变换器功率传输效率的优化设计

Optimization design of power efficiency of exponential impedance transformer

论文大纲

王勐 ^*邹文康陈林关永超付佳斌谢卫平

作者单位

中国工程物理研究院流体物理研究所，四川绵阳 621900

指数型阻抗变换器上升沿等效功率传输效率 exponential impedance transformer rising edge equivalence power efficiency

摘要

利用解析方法和电路模拟方法研究了阻抗变换器功率传输效率的优化设计。电路计算中，采用了脉冲上升沿等效的正半周正弦波作为输入波形的假设，并忽略了水介质能量损失的影响。首先对比了线性、饱和型变化和陡变型变化3种典型阻抗的功率和能量传输效率，分析讨论了影响指数型阻抗变换器功率传输效率的关键影响因素，并得到了功率传输效率最大化的中间参数和符合系数的参数范围。讨论了实际设计中应注意的绝缘安全系数的结构设计、杂散参数对阻抗计算的影响、水介质能量损失等问题。

Abstract

The paper investigates the optimization design of power efficiency of exponential impedance transformer with analytic method and numerical method. In numerical calculation, a sine wave voltage with hypothesis of rising edge equivalence is regarded as the forward-going voltage at input of transformer, and its dominant angular frequency is determined by typical rise-time of actual voltage waveforms. At the same time, dissipative loss in water dielectric is neglected. The numerical results of three typical modes of impedance transformation, viz. linear mode, saturation mode and steep mode, are compared. Pivotal factors which affect the power efficiency of exponential impedance transformer are discussed, and a certain extent quantitative range of intermediate variables and accordance coefficients are obtained. Finally, the paper discusses some important issues in actual design, such as insulation safety factor in structure design, effects of coupling capacitance on impedance calculation, and dissipative loss in water dielectric.

参考文献

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王勐, 邹文康, 陈林, 关永超, 付佳斌, 谢卫平. 指数型径向阻抗变换器功率传输效率的优化设计[J]. 强激光与粒子束, 2011, 23(8): 2252. Wang Meng, Zou Wenkang, Chen Lin, Guan Yongchao, Fu Jiabin, Xie Weiping. Optimization design of power efficiency of exponential impedance transformer[J]. High Power Laser and Particle Beams, 2011, 23(8): 2252.

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