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A novel digital PID-controlled LLC resonant converter

机译:新型数字PID控制的LLC谐振转换器

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摘要

This paper proposes a new quick response frequency digital control with the multi-sampling point and flexible duty ratio for the LLC resonant DC-DC converter. Although the digitally-controlled LLC resonant converter with high power efficiency characteristics will be widely used in the hybrid green energy system. It is necessary to improve the digital control method because the delay time based on calculation occurs. In the conventional method, the sampling rate is single and the calculation process of P and ID controls are series and the duty ratio of switching pulse is constant 50%. On the other hand, in the proposed method, the sampling rate is multiple and the calculation process of P and ID controls are parallel and the duty ratio is also variable in case of the transient response state. Since the calculation process is divided into P and ID controls, they are calculated at different sampling rates. Therefore, the real-time P control is useful for the transient response and then good transient responses are obtained.
机译:本文为LLC谐振DC-DC转换器提出了一种具有多采样点和灵活占空比的新型快速响应频率数字控制。尽管具有高功率效率特性的数字控制LLC谐振转换器将广泛用于混合绿色能源系统。由于出现了基于计算的延迟时间,因此有必要改进数字控制方法。在传统方法中,采样率是单一的,P和ID控制的计算过程是串行的,并且开关脉冲的占空比恒定为50%。另一方面,在所提出的方法中,采样率是多个,并且P和ID控制的计算过程是并行的,并且在瞬态响应状态下,占空比也是可变的。由于计算过程分为P和ID控件,因此它们以不同的采样率进行计算。因此,实时P控制对于瞬态响应很有用,然后可以获得良好的瞬态响应。

著录项

  • 来源
    《Electromotion》 |2011年第3期|p.133-139|共7页
  • 作者

    F. Kurokawa; K. Murata; Y. Maeda;

  • 作者单位

    Department of Electrical and Electronic Engineering Nagasaki University 1-14 Bunkyo-machi, 852-8521 Nagasaki, Japan;

    Department of Electrical and Electronic Engineering Nagasaki University 1-14 Bunkyo-machi, 852-8521 Nagasaki, Japan;

    Department of Electrical and Electronic Engineering Nagasaki University 1-14 Bunkyo-machi, 852-8521 Nagasaki, Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    digital PID control; LLC resonant DC-DC converter;

    机译:数字PID控制;LLC谐振DC-DC转换器;

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