一种用于海洋沉积物加热酸化试验的超音频感应电源  

Ultrasonic frequency induction heating power supply for ocean sediment acidification test

作　　者：张超[1] 覃庆良[1] 孟涛 ZHANG Chao;QIN Qingliang;MENG Tao(Department of Automation and Electronic Engineering,Qingdao University of Science and Technology,Qingdao,Shandong 266000,China)

机构地区：[1]青岛科技大学自动化与电子工程学院,山东青岛266061

出　　处：《自动化与仪器仪表》2023年第5期260-264,共5页Automation & Instrumentation

摘　　要：海洋中的有机沉淀物热解反应后的CO_(2)浓度可以反映出该地区的能源分布和生态质量,所以为提高海底沉积物热解酸化实验的效率,设计了一种电压串联型,并具有移相PWM和PFM混和调功的超音频感应加热电源。利用COMSOL软件,采用磁-热耦合的仿真分析方法,对中国边缘海沉积物(ME3观测站点)加热的过程进行有限元仿真,确定了感应加热电源冷启动时电磁负载侧的热能传递过程和被加热材料的升温趋势,做出样机采集数据,绘制出待加热物质反应后的时间—温度曲线和温度—浓度曲线。实验结果证明:相较于SUNSET品牌的加热环节,加热速度至少提高50%。The CO_(2) concentration after the pyrolysis reaction of organic sediments in the ocean can reflect the energy distribution and ecological quality of the area.To improve the efficiency of acidification experiments of seafloor sediments,a series voltage heating power source with phase-shifted PWM and PFM hybrid power regulation was designed.Using COMSOL software,the heating process of marine sediments(ME3 observation site)in China's margin was simulated by finite element method using magnetic-thermal coupling simulation.The heat transfer process on the electromagnetic load side and the heating trend of heated materials during cold start of induction heating power supply were determined.Data were collected by prototype,and the time-temperature and temperature-concentration image after reaction of heated materials were drawn.The experimental results show that the heating speed is at least 50%higher than that of SUNSET brand heating link.

关 键 词：感应加热 COMSOL有限元仿真 PWM—PFM混合调功 热解酸化实验 STM32F334 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]