文档介绍：上海交通大学硕士学位论文
环保用高中频变频电源研制
摘要
电源,如今已是非常重要的基础科技和产业,从日常生活到最尖端
的科技,都离不开电源技术的参与和支持,电源技术也正是在这种环境
中一步一步发展起来的,而高频变化是电源技术发展的主流。
本文主要介绍的是中频 10k~20kHz 变频和高频 100k~300kHz 变频
的电路设计与器件选择,分析在不同的工作频率范围内,功率器件的合
理选择,芯片和模块的具体应用。
对于逆变前端的整流电路,也作了具体介绍,并且在两次实验中采
用了不同的方式。中频逆变电路前端的整流电路采用的是不可控单相整
流方式;高频逆变电路前端的整流采用的是三相全控整流方式。
根据电路的工作频率范围,10k~20kHz 的变频电路中,逆变主回路
采用的功率器件是 IGBT,由此选择的是 IPM-IGBT 智能功率模块,它
集成了保护与驱动电路一体。控制电路中,PWM 的信号输出采用的是
SG3524 芯片。整个电路的特点是模块化与简便化。
100k~300kHz 的变频电路中,考虑到工作频率相当高,因此采用的
功率器件是 IR 公司的 MOSFET,并且选择相配套的 IR 公司的高电压集
成芯片作为 MOSFET 的驱动。控制电路中,PWM 信号的输出采用
ATmega16 单片机芯片,并且和 MOSFET 驱动芯片共同组建保护电路。
设计电路的特点是电路简单而合理,器件选择一体化。
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上海交通大学硕士学位论文
本文的结尾,介绍了高中频变频电路在环保上的应用,体现出本课
题研究具有很大的现实意义。
关键词:整流,逆变,功率器件,环保
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上海交通大学硕士学位论文
RESEARCH OF HIGH AND MIDDLE FREQUENCY VARIABLE-
FREQUENCY POWER SUPPLY APPLIED IN ENVIRONMENT
PROTECTION
ABSTRACT
Today power supply is an important industry and basic science
technology to other subjects. From daily life to front edge science, nothing
can develop without the support and participation of power supply. And the
frequency to be higher is the main developing direction.
In the paper, the converter circuit design and part choosing are mainly
discussed. The middle frequency variable range is from 10k to 20kHz, and the
higher from 100k to 300kHz.
The paper also introduced the rectifier circuit. And in two experiments,
different methods were used. Single phase uncontrollable rectifier was used in
middle frequency circuit, while three phase fully controllable rectifier was
used in high frequency circuit.
According to different frequency variable range, in the 10k to 20kHz
converter circuit, IPM-IGBT and SG3524 were applied. IPM-IGBT means
intelligent power module, which integrated the protection function. SG3524
was used to generate the PWM signal. The character of the circuit is
modularized and simplified. Besides, in the 100k to 300kHz converter circuit,
main parts chosen were made by IR, including the M