Ｒesearch on Critical ESＲ of Output Capacitor for V2C Controlled Buck Converter

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Ｒesearch on Critical ESＲ of Output Capacitor for V2C Controlled Buck Converter

更新时间：2026-02-13

- Ｒesearch on Critical ESＲ of Output Capacitor for V2C Controlled Buck Converter
- Vol. 42, Issue 1, Pages: 63-67(2019)
- 作者机构：
  
  国网宜宾供电公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM46
- Published：2019
- 稿件说明：
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You Zhikun. Ｒesearch on Critical ESＲ of Output Capacitor for V2C Controlled Buck Converter[J]. 2019, 42(1): 63-67.
DOI：

You Zhikun. Ｒesearch on Critical ESＲ of Output Capacitor for V2C Controlled Buck Converter[J]. 2019, 42(1): 63-67. DOI：

摘要

针对输出电容等效串联电阻对变换器性能具有较大影响，以 V2C 控制 Buck 变换器为例，建立了其分段线性模型，推导了 Jacobi 矩阵及其特征根，给出了变换器由稳定变为不稳定时 ESＲ的临界值。研究结果表明，V2C 控制在V2控制中引入电感电流反馈，增大了稳定工作范围。所得结论可以对分布式发电系统中 DC － DC 变换器设计和器件选型提供指导。

Abstract

Aiming at the great influence of output capacitor equivalent series resistance ( ESＲ) on the performance of converters，the piecewise linear model is established by taking V2C controlled Buck converter for example． Jacobi matrix and its eigenvalues are derived，and the critical ESＲ is given when the stable state of converter transfers to the unstable state． The results show that the inductance current is introduced as the feedback in V2C control，which broadens the range of stability． The obtained conclusions can provide a guidance for DC － DC converter design and device selection in distributed generation systems．

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Ｒesearch on Critical ESＲ of Output Capacitor for V2C Controlled Buck Converter

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