毕业设计 单片机与sa4828控制的spwm变频电源.doc

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毕业设计 单片机与sa4828控制的spwm变频电源,单片机与sa4828控制的spwm变频电源全文约3500字论述翔实摘要:本文利用微处理器作为控制器,结合专用的spwm集成电路,设计三相spwm变频电源。系统主电路形式采用ac-dc-ac结构,逆变部分选用igbt单元模块加上并联缓冲电路。输入采用三相全波不可控整流电路,提高了系统的功率因数。系统控制电路由mcs-51...
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单片机与SA4828控制的SPWM变频电源

全文约3500字 论述翔实

摘要:本文利用微处理器作为控制器,结合专用的SPWM集成电路,设计三相SPWM变频电源。系统主电路形式采用AC-DC-AC结构,逆变部分选用IGBT单元模块加上并联缓冲电路。输入采用三相全波不可控整流电路,提高了系统的功率因数。系统控制电路由MCS-51系列的8051单片机最小系统和SA4828三相SPWM产生器及少量的扩展外围芯片构成,系统实现了变频电源的全数字化控制。

关键词:单片机;正弦脉宽调制;变频电源;绝缘栅双极晶体管

SPWM frequency conversion power supply which controlled by
one-chip computer and SA4828
LIN Li1 GANPENG2
(Information and Electrical Engineering Department ,Shaoyang University ,Shaoyang , Hunan,422004 )
Abstract:This design is to use the microcomputer as controller. Combine special-purpose SPWM integrated circuit designs SPWM frequency conversion power supply. The main circuit form of the system adopts AC-DC-AC structure, the inverter part consist of IGBTS and a parallel buffer circuit. the systematic of the cost and go against the becoming device, adopts three-phase the whole wave uncontrolled rectification circuit to input, improves the quality of the electric which is supplied to inverter. The control circuit of the system consist of is 8051 single-chip microcomputer minimum system of MCS-51 series and three phases SPWM generate integrated circuit SA4828 and a small amount of peripheral chip of expansion, the system has realized total digitization controls on frequency conversion power supply.
Keywords:single-chip microcomputer; SPWM; inverter power supply; IGBT

部分参考文献

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