机电专业电力电子毕业论文1.docx

PAGE 2 毕业论文 学院 年 级 20 级 专 业 学生姓名 学 号 指导教师 完成日期 202 年 月 摘 要 整流器是将交流电源转换成直流电源的重要电力电子设备。随着时代的发展，大功率整流设备经历了不同的发展时期，从电子整流时期到电子逆变时期再到电子变频时期。随着电力电子技术的飞速发展，电力电子技术已经广泛应用于各个领域。基于电力电子技术的大功率整流设备发展迅速。它利用电力电子技术的基本特性，放大倍数高，以小信号输入控制大功率输出，开发新型大功率整流设备。 本次毕业设计包括三相桥式整流电路的基本原理；包括主电路设计、触发电路设计和保护电路设计以及整流设备其他方面的应用。对于三相桥式半控整流电路,在分析电路的原理基础上,采用MATLAB/Simulink软件仿真平台,分别对带有不同负载的三相桥式半控整流电路建立仿真模型,在不同触发角的情况下进行仿真,对结果进行分析。 整流器在日常生活中起着尤为重要的作用。在发电机的发电结束后，将交流电转化为直流电，为电池提供充电电压。因此，三相整流器也可作为充电器使用。整流器是电力电子中最重要、应用最广泛的电子设备。它不仅适用于一般工业领域，还广泛应用于电力系统、通信系统、交通和能源系统等领域。 关键词：晶闸管；大功率整流；Matlab/Simulink；三相桥式整流  Abstract Rectifier is an important power electronic equipment that converts AC power to DC power. With the development of the times, the high-power rectifier equipment has experienced different development periods, from the electronic rectifier period to the electronic inverter period and then to the electronic frequency conversion period. With the rapid development of power electronic technology, power electronic technology has been widely used in various fields. Based on the power electronics technology, high-power rectifier equipment develops rapidly. It uses the basic characteristics of power electronic technology, high amplification, small signal input to control high power output, and develops new high power rectifier equipment. This graduation design includes the basic principle of three-phase bridge rectifier circuit, including the main circuit design, trigger circuit design, protection circuit design and other applications of rectifier equipment. For the three-phase bridge half control rectifier circuit, based on the analysis of the principle of the circuit, the MATLAB / Simulink software simulation platform is used to build simulation models for the three-phase bridge half control rectifier circuit with different loads, simulate under different trigger angles, an