...
首页> 外文期刊>Power Electronics, IET >Hybrid mode-hopping modulation for LLC resonant converter achieving high efficiency and linear behaviour
【24h】

Hybrid mode-hopping modulation for LLC resonant converter achieving high efficiency and linear behaviour

机译:用于实现高效率和线性行为的LLC谐振转换器的混合模式跳跃调制

获取原文
获取原文并翻译 | 示例
           

摘要

Frequency modulation (FM) has been widely used in the inductor-inductor-capacitor (LLC) resonant converter due to excellent soft switching features. However, low power efficiency in light load conditions and complex control due to the nonlinear converter behaviour are common concerns for the FM method. In this study, a hybrid mode-hopping modulation method is proposed for the LLC resonant converter to address these challenges. The LLC resonant converter operates at any two of three power-efficient operating modes for a different amount of time within a single modulation period. By determining the mode hopping time and combining different mode-hopping modulations, the LLC resonant converter can achieve a wide range of output power and maintain high efficiency at the same time. Besides, since the switching frequencies are fixed, the relationships between the duty cycle and the output power are linear, which can significantly simplify the control design. Compared with the existing modulation methods, the proposed hybrid mode-hopping modulation makes the LLC resonant converter behaves linear, simplifies the control design, achieves wide operation range and ensures high efficiency even in light load condition.
机译:由于出色的软切换功能,频率调制(FM)已广泛用于电感电感器 - 电容器(LLC)谐振转换器。然而,光负荷条件下的低功率效率和由于非线性转换器行为导致的复杂控制是FM方法的常见问题。在该研究中,提出了一种混合模式跳跃调制方法,用于LLC谐振转换器来解决这些挑战。 LLC谐振转换器在单个调制周期内的不同时间中的任何两个功率有效的操作模式操作。通过确定模式跳跃时间并组合不同的模式跳跃调制,LLC谐振转换器可以实现各种输出功率并同时保持高效率。此外,由于切换频率是固定的,因此占空比与输出功率之间的关系是线性的,这可以显着简化控制设计。与现有调制方法相比,所提出的混合模式跳跃调制使得LLC谐振转换器的行为线性,简化了控制设计,实现了宽操作范围,即使在光负载条件下也能确保高效率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号