基于能量回收原理脉冲变压器复位系统仿真与实验研究  

Simulation and experimental research of pulse transformer reset system based on energy recovery principle

作　　者：王庆峰[1] 车永旺 李相强[1] 张健穹[1] 唐先锋 Wang Qingfeng;Che Yongwang;Li Xiangqiang;Zhang Jianqiong;Tang Xianfeng(School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学物理科学与技术学院,成都610031

出　　处：《强激光与粒子束》2022年第9期103-109,共7页High Power Laser and Particle Beams

基　　金：中央高校基本科研业务费项目(2682021ZT039、2682021GF016、2682021CX072、2682021ZTPY12)。

摘　　要：为提升脉冲功率系统中脉冲变压器的磁芯利用率,提出了一种基于能量回收原理的脉冲变压器复位系统。根据磁芯磁滞回线分析了基于能量回收原理复位系统在一个周期内磁感应强度的变化过程,推导给出了脉冲变压器励磁电流、复位电容电压在不同阶段的求解公式。建立了基于能量回收原理脉冲变压器复位系统的仿真模型,通过仿真结果验证了复位系统理论分析和求解公式正确性。在此基础上构建了基于脉冲变压器升压及能量回收复位系统的脉冲调制器试验平台,在相同脉冲宽度下对比有复位系统和无复位系统脉冲调制器的励磁电流,结果表明,有复位系统脉冲调制器可有效提高磁芯的利用率。对有复位系统的脉冲调制器进行重频实验,结果表明复位系统可实现1 kHz重频稳定工作。To improve the core utilization rate of pulse transformer in pulse power system,a pulse transformer reset system based on energy recovery principle is proposed.Firstly,according to the magnetic core hysteresis loop,the change process of the magnetic induction intensity of the reset system based on the energy recovery principle in one cycle is analyzed,and the solution formulas of the pulse transformer excitation current and reset capacitor voltage in different stages are deduced.A simulation model of the pulse transformer reset system based on the energy recovery principle is established,and the correctness of the theoretical analysis and solution formulasof the reset system is verified by the simulation results.On this basis,a pulse modulator test platform based on pulse transformer boosting and energy recovery reset system is constructed.The excitation currents of the pulse modulators with reset system and without reset system are compared under the same pulse width.The results show that the reset system pulse modulation can effectively improve the utilization of the magnetic core.The repetition frequency experiment is carried out on the pulse modulator with reset system,and the results show that the reset system can realize the stable operation of 1 kHz repetition frequency.

关 键 词：能量回收 脉冲变压器 复位 磁感应增量 励磁电流 

分 类 号：TM417[电气工程—电器]