• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Annual Conference of the IEEE Industrial Electronics Society >An Exact Time Domain Analysis of DCM Boost Mode LLC Resonant Converter for PV applications
【24h】

An Exact Time Domain Analysis of DCM Boost Mode LLC Resonant Converter for PV applications

机译：用于PV应用的DCM升压模式LLC谐振转换器的精确时域分析

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The search for a cost feasible, optimal design of LLC converter for wide input voltage range conditions is inhibited by errors in steady state values of peak gain, tank current, tank voltage, active power etc., due to various approximations in the analysis. This leads to erroneous selection of circuit parameters. The present work provides an exact, approximation free time domain mathematical model of LLC converter operating in transformer secondary current discontinuous mode (DCM) below resonance in boost mode. The proposed approach defines voltage gain as a function of relative switching frequency (ω) and td, which represents the rectifier diode to switch conduction ratio for DCM operation. Existing works have defined voltage gain as an explicit function of quality factor (Q) and ω. The current approach leads to accurate derivation of converter voltage gain, tank RMS current, tank capacitor voltage, zero voltage switching (ZVS) angle etc. Analytical expressions are validated with simulation studies using PSIM for various inductor ratio values. A final design is verified on an experimental prototype of 320W output LLC converter designed for an input range of 20-40V for solar PV applications.
机译：由于分析中的各种近似，搜索宽输入电压范围条件的可行性，用于宽输入电压范围条件的LLC转换器的LLC转换器的最佳设计被抑制。这导致错误选择电路参数。本工作提供了在升压模式下谐振的变压器二次电流不连续模式（DCM）中操作的LLC转换器的精确，近似空闲时域数学模型。所提出的方法定义了作为相对开关频率（ω）和TD的函数的电压增益，其代表整流二极管以切换DCM操作的导通比。现有工作具有定义的电压增益，作为质量因子（Q）和ω的显式功能。电流方法导致转换器电压增益的精确导出，罐RMS电流，罐电容电压，零电压切换（ZVS）角度等。使用PSIM进行各种电感比值的仿真研究验证了分析表达式。在320W输出LLC转换器的实验原型上验证了最终设计，该模拟器设计用于太阳能光伏应用的20-40V的输入范围。

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