摘要
等离子辅助球磨技术需要高压电源激发等离子场,而目前高压等离子球磨电源存在开关管数目多、控制时序复杂、可靠性低等问题。研制了采用单管结构的谐振高压等离子球磨电源。首先介绍了主电路的工作原理,详细分析了初级谐振网络的固有谐振频率及谐振参数选择;利用变压器与负载的串联谐振网络进一步提高输出电压幅值;通过Simulink仿真,验证了主电路工作波形以及谐振电压增益,其输出电压峰峰值可达到24 kV以上。在此基础上,研制了一台输出功率3 kW样机,并成功激发等离子场用于辅助球磨。
Plasma assisted ball milling technology requires high voltage power supply to excite the plasma field.However,high voltage plasma ball milling power supply has many problems such as large numbers of switch tubes,complicated control timing,and low reliability.Therefore,the high voltage plasma ball milling power supply based on single tube structure has been developed.Firstly,the working principle of the main circuit is introduced,and the inherent resonance frequency and resonance parameter selection of the primary resonance network are analyzed in detail.In addition,the voltage gain of the transformer and load series resonance network is utilized to further increase the amplitude of output voltage.Through Simulink software,the main circuit waveforms and the resonance voltage gain are verified.The peak-to-peak output voltage reach more than 24 kV.Based on the above,a prototype with an output power of 3 kW is developed,and the plasma field is successfully excited and used in auxiliary field ball milling.
作者
袁松
曾敏
李阳
胡子鑫
Yuan Song;Zeng Min;Li Yang;Hu Zixin(School of Mechanical&Automotive Engineering,South China University of Technology,Guangzhou 510641,China)
出处
《电子技术应用》
2021年第9期91-95,共5页
Application of Electronic Technique
基金
国家重点研发计划资助项目(2018YFD0400903)
广东省基础与应用基础研究基金项目(2021A1515011773)
广州市科技计划项目(201904010272)。
关键词
可控硅
外场辅助球磨
高压电源
谐振
等离子体
silicon controlled rectifier
auxiliary field ball milling
high voltage power supply
resonance
plasma
