基于DSP的臭氧发生器逆变电源设计  

Design of Inverter Power Supply for Ozone Generator Based on DSP

作　　者：王新春[1] 张自雷[1] 李少波[1] 刘景霞[1] WANG Xin-chun;ZHANG Zi-lei;LI Shao-bo;LIU Jing-xia(Inner Mongolia University of Science and.Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010

出　　处：《电力电子技术》2021年第9期71-74,142,共5页Power Electronics

基　　金：内蒙古自治区自然科学基金(2020LH05019)。

摘　　要：臭氧发生器逆变电源性能是提高其产量的关键,基于此,这里提出采用数字信号处理器(DSP)控制技术对臭氧发生器逆变电源进行总体方案设计,包括主回路和控制回路方案设计。其中,主回路包括三相电源、三相整流电路、LC滤波电路、全桥逆变电路、升压电路以及负载电路;控制回路包括DSP最小系统、逆变器脉宽调制(PWM)驱动电路、信号采样电路、故障检测电路以及通讯接口电路。采用DSP TMS320F28335作为系统的主控芯片,以构成电源系统中的交流信号采样、状态指示和相位调节系统。最后,对硬件电路进行了软件调试,包括PWM驱动信号调试、移相整定功率输出调试、锁相环频率跟踪调试以及整体输出实验调试。软件调试的结果表明,这里提出的基于DSP控制的臭氧发生器逆变电源系统具有较好的正弦特性和抗干扰性以及较低的谐波失真度。The performance of the ozone generator inverter power supply is the key to improve its output.Based on this,the overall scheme of ozone generator inverter power supply is proposed by using digital signal processor(DSP)control technology which includes the main circuit and control loop.The main circuit includes three-phase power supply,three-phase rectifier circuit,LC filter circuit,full-bridge inverter circuit,boost circuit and load circuit.The control circuit includes DSP minimum system,inverter pulse width modulation(PWM)drive circuit,signal sampling circuit,fault detection circuit and communication interface circuit.DSP TMS320 F28335 is used as the main control chip of the system to constitute the AC signal sampling,state indication and phase adjustment system of the power supply system.Finally,the hardware circuit is debugged which includes PWM drive signal debugging,phase-shifting setting power output debugging,phase-locked loop frequency tracking debugging and overall output experiment debugging.The software debugging results shows that the ozone generator inverter power supply system based on DSP control has better sinusoidal characteristics,anti-interference and lower harmonic distortion.

关 键 词：逆变电源 数字信号处理器 臭氧发生器 

分 类 号：TN86[电子电信—信息与通信工程]