单相交_直_交变频电路的设计与性能研究毕业论文

摘要随着电力电子技术、计算机技术以与自动控制技术的快速进展，单相交-直-交变频系统也得到了迅速进展，它显著的变频能力，广泛的应用围，完善的保护效力，和易于实现的变频功能，获到了广阔使用者的认可，在运行的安全可靠、安装使用以与维修维护等方面，也给使用者带来了极大的益处。课题讨论的单相交-直-交变频电路设计主要分为主电路和控制电路两部分，其中主电路还分为整流电路、滤波电路和单相桥式 PWM 逆变电路，而逆变部分则需要用到控制电路，控制电路分为控制电路、驱动电路和保护电路。课题的整流部分选用不可控的桥式整流电路；滤波部分则选用 LC 低通滤波，获得高频率的沟通正弦波输出；逆变部分选用四个 IGBT 管组成的单相桥式逆变电路。控制电路主要以单片集成函数发生器 ICL8038 为核心设计的，生成两路 PWM 信号用来分别控制两对 IGBT 管；驱动电路则是选用了具备电气隔离的集成驱动芯片M57962L；保护电路选用双 D 触发器 CD4013。用 MATLAB 软件仿真出设计的电路，其中对纯电阻负载以与电阻电感负载分别进行数据和波形的分析，并实行相关措施使最后输出的波形接近正弦波。关键词：整流 滤波 逆变 IGBT PWM MATLABAbstractWith the rapid development of power electronics technology, computer technology, automatic control technology, single-phase orthogonal frequency system has been developing rapidly, its remarkable frequency capability, a wide range of applications, perfect protection, as well as easy to implement the conversion function, has been recognized by the majority of users in the safe and reliable operation, installation, repair and maintenance, etc., but also to bring users great convenience.Research of single phase AC- DC - AC inverter circuit design divided into the main circuit and control circuit, which can be divided into the main circuit rectifier circuit, filter circuit and single-phase bridge PWM inverter circuit, and inverter control part of the need to use circuit, the control circuit is divided into a control circuit, drive circuit and protection circuit. Subject ...