MATLAB GUI Based Steady State Open-Loop and Closed-Loop Simulation Tools for Different LLC Converters With all Operation Modes

IF 7.9 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Open Journal of Industry Applications Pub Date : 2021-11-19 DOI:10.1109/OJIA.2021.3129260

Yuqi Wei;Zhiqing Wang;Quanming Luo;H. Alan Mantooth

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引用次数: 10

Abstract

LLC resonant converters have been widely adopted in many different industrial applications due to their characteristics of high efficiency and high power density. Simulation tools are of great importance for the analysis and design of LLC resonant converters. For example, many LLC design methods require massive simulations to finalize the circuit parameters, iterations are necessary, which can be tedious and time-consuming. Therefore, in this work, accurate and complete steady state simulation tools based on MATLAB graphical user interface (GUI) are designed for LLC resonant converters. All common and possible operation modes and LLC converter topologies are included in the designed simulation tools, which makes them practical for different applications and operation conditions. An improved mode judgement method and guidelines for initial point setting are proposed to ensure fast simulation speed. More than that, the key circuit voltage and current values are summarized for the user to evaluate the converter performance, which is more convenient than commercial simulation software. Moreover, the designed simulation tools are suitable and convenient for automatic converter parameter design.

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基于MATLAB GUI的不同LLC变换器稳态开环和闭环仿真工具

LLC谐振变换器由于其高效率和高功率密度的特性，已被广泛应用于许多不同的工业应用中。仿真工具对LLC谐振变换器的分析和设计具有重要意义。例如，许多LLC设计方法需要大规模仿真来最终确定电路参数，迭代是必要的，这可能是乏味和耗时的。因此，在本工作中，基于MATLAB图形用户界面（GUI）为LLC谐振变换器设计了准确、完整的稳态仿真工具。所有常见和可能的操作模式以及LLC转换器拓扑都包含在所设计的仿真工具中，这使得它们在不同的应用和操作条件下具有实用性。为了保证仿真速度快，提出了一种改进的模式判断方法和初始点设置准则。此外，还总结了关键电路的电压和电流值，供用户评估转换器的性能，这比商业模拟软件更方便。此外，所设计的仿真工具适用于变频器参数的自动设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Open Journal of Industry Applications

CiteScore

13.50

自引率

0.00%

发文量