高频链逆变器研究与设计.docVIP

摘 要 在电力电子技术领域中，逆变技术有着其重要地位，它是现代电力传动系统 中的主要支撑，是不间断电源(UPS)的核心技术。随着通讯、电子技术和电力系 统的进步，对电源的性能、重量、体积、效率和可靠性及环保提出了更高的要求，高频链逆变技术正是在这种情况下得到重视并蓬勃发展的高新技术领域。 目前，单向电压源高频链DC/AC功率变换器应用较为广泛。这类变换器适用于从电源向负载单向传输功率的系统，通态损耗低，系统效率高。本文采用逆变总体方案为DC-AC，直流电源向负载传输功率时，首先对逆变器进行SPWM调制，逆变器将直流电能转变成交流电能，再经过高频变压器输出高频交流电，然后经过LC滤波器滤波得到低频交流电之后供给负载，最后通过MATLAB7.0/Simullnk环境下，对单向电压型高频链逆变器进行了建模和仿真，仿真结果证明了该方案的可行性。 关键词：高频链逆变技术；PWM控制技术；高频变压器 Abstract In the field of power electronics technology，Inverter technology has an important position，It is a modern electric drive system of the main support，Is an uninterruptible power supply (UPS) of the core technology。As the communications, electronics and advances in power system, the performance of the power, weight, volume, efficiency and reliability, and environmental protection put forward higher requirements，High-frequency link inverter technology is taken seriously in this case and booming high-tech fields。 Now,one-way frequency link voltage DC/AC power converter is widely used。These converters suitable for one-way transmission from the power supply to the load power system-state low-loss, high efficiency of the system。In this paper, the overall program for the inverter DC-AC，DC power to the load when the transmission power，First modulation SPWM inverter for the inverter to direct current into AC power, through the high-frequency transformer AC output frequency, and then after LC filter after filtering by low-frequency AC supply load，Finally, MATLAB7.0/Simullnk environment, on the one-way voltage inverter with high frequency were modeling and simulation, simulation results prove the feasibility of the program. Keywords：High-frequency link inverter technology；High-frequency transformer 目录 目录 I 第1章 概述 1 1.1高频链逆变技术的现状和发展 1 1.2课题研究的背景与意义 3 1.3本课题研究主要内容 3 1.4本章小结 4 第二章 高频链DC/AC逆变器的原理 4 2.1逆变电源的控制技术 4 2.2高频链技术的分类及特点 7 2.3单向电压型高频链SPWM逆变器的研究 12 2.4本章小节 13 第三章 高频链逆变电源的设计 14 3.1逆变电源的性能要求 14 3.2高频链逆变电源的总体方案设计 15 3.3高频变压器的设计 16 3.4输出滤波器的设计 21 3.5本章小节 24 第四章 仿真与实验结果分析 24 4.1