摘要
介绍了电子回旋共振加热(ECRH)系统中全固态阳极高压电源的硬件设计方法。阳极电源采用高频PWM和PSM控制技术相结合的方法。前级使用SG3525来控制IGBT完成高频逆变,后级由59个模块串接输出而成,通过反馈第一级模块输出电压,实现每个模块输出电压的基本稳定;后级输出电压通过DSP控制PSM模块的通断个数以及第59个模块BUCK电路的占空比,实现输出电压的叠加输出,让输出电压能在35k V内全范围调节,输出电流最大为200m A,调制频率达1k Hz以上。输出波形有3种工作模式,波形前沿时间能在3ms内调节。经过在假负载及ECRH实验平台上的测试,电源性能稳定,证明该硬件设计方法可行。
The hardware design of solid-state anode high-voltage power supply in electron cyclotron resonance heating system (ECRH) is presented. The anode power supply uses the method that combined high-frequency pulse width modulation (PWM) and phase shift modulation (PSM) control technology. The former in the supply uses the SG3525 to control the IGBT to complete the high frequency invert. The latter is made up of a total of 59 modules connected in series. The output voltage of each module is basically stabilized by feedback of the first stage module output voltage. DSP controls the number of PSM module on and off and the 59th module BUCK circuit duty cycle to achieve the output voltage of the superimposed output, and the output voltage can be adjusted within the full range of 35kV with accuracy less than 0. lkV, the output current up to 200mA, modulation frequency more than lkHz. The anode power supply has three operating modes, and the rising edge time of the waveform can be adjusted within 3ms. The results tested from dummy load and ECRH experimental platform show that its performance is stable, and the hardware design method is feasible.
作者
黄波
黄梅
陈文光
饶军
冯鲲
康自华
HUANG Bo1, HUANG Mei1, CHEN Wen-guang2, RAO Jun1, FENG Kun1, KANG Zi-hua1(1. Southwestern Institute of Physics, Chengdu 610041; 2. School of Electrical Engineering, University of South China, Hengyang 42100)
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
2018年第1期55-62,共8页
Nuclear Fusion and Plasma Physics
关键词
回旋管
电子回旋共振加热
脉冲步进调制
高压电源
硬件电路
Gyrotron
Electron cyclotron resonance heating
Pulse step modulation
High voltage power supply
Hardware circuit