并联谐振AC-link三相AC/AC变换器仿真研究

卜朗; 刘庆想; 王邦继; 张政权; 李伟

doi:10.11884/HPLPB201830.170458

并联谐振AC-link三相AC/AC变换器仿真研究

doi: 10.11884/HPLPB201830.170458

西南交通大学物理科学与技术学院, 成都 610031

详细信息

作者简介:
卜朗(1992—), 男，硕士，从事电机驱动控制研究；langbu_92@hotmail.com

中图分类号: TM46
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- 被引次数: 0
出版历程
- 收稿日期: 2017-11-13
- 修回日期: 2018-01-15
- 刊出日期: 2018-06-15

Simulation research of three-phases AC/AC converter based on AC-link parallel resonance

College of Physics Science and Technology, Southwest Jiaotong University, Chengdu 610031, China

摘要

摘要: 基于AC-Link技术的充电电源具有高效率、高功率密度等优点，可作为高功率微波系统的初级能源。针对三相AC/AC能量变换的需求，仿真研究了一种基于AC-Link并联谐振技术的三相AC/AC变换器。给出了并联谐振AC-link三相AC/AC变换器的拓扑结构；分析了控制原理；阐述了16模式的具体控制过程和软开关切换的实现方法；明确了开关切换时间的计算方法；搭建15 kW仿真平台分析了不同负载要求下的能量变换过程。结果表明: 该变换器可以实现固定输出的能量变换，并且输出电压、频率可调；输入/输出电流波形均为正弦，输入功率因数为1；控制方法正确有效，实现了软开关切换。
- AC-link /
- 并联谐振 /
- 三相AC/AC变换器 /
- 软开关切换 /
- 能量变换
Abstract: Charging power supply based on AC-link has the advantage of high power density and can be used for primary energy source of high-power microwave (HPM) system. In order to meet the requirement of high power density, a three-phase AC/AC converter based on AC-link parallel resonance is studied. Topological structure and operating principle of the converter is analyzed, the specific working process of 16 modes and the realization of soft-switching are described and the algorithm of switches on time is given. A 15 kW simulation platform is built and energy conversion processes under different loads are analyzed. The result shows that the conversion of voltage and frequency is realized, currents of both sides are sinusoidal, also, unity input power factor and zero voltage switching(ZVS) are realized.
- AC-link /
- parallel resonance /
- three-phase AC/AC converter /
- soft-switching /
- energy conversion

HTML全文

图 1 主电路拓扑结构

Figure 1. Schematic of proposed topology

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图 2 工作模式1-8

Figure 2. Operating modes 1 to 8

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图 3 一个周期内谐振电压、谐振电感电流、输入和输出电流波形

Figure 3. Typical waveform of link voltage, link induction current, input and output currents in a period

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图 4 输出电压380 V、输出频率50 Hz时，输入侧和输出侧的电流、电压波形

Figure 4. Simulation result at 380 V, 50 Hz, including the current and scaled voltage of both sides

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图 5 输出电压610 V、输出频率120 Hz时，输入侧和输出侧的电流、电压波形

Figure 5. Simulation result at 610 V, 120 Hz, including the current and scaled voltage of both sides

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图 6 开关电压及其触发脉冲信号

Figure 6. Voltage of switch and its trigger pulse

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