Virtual frequency-based minimum return power modulation strategy for single-stage isolated AC-DC converter

Liu Hanmin; Chen Jian; Zhu Kangfu; Ge Yunfei; Zhong Zhengyang; Wang Yaoqiang

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Virtual frequency-based minimum return power modulation strategy for single-stage isolated AC-DC converter

更新时间：2026-10-15

- Virtual frequency-based minimum return power modulation strategy for single-stage isolated AC-DC converter
- Vol. 63, Issue 10, (2026)
- 作者机构：
  
  1. 国网冀北清洁能源汽车服务（北京）有限公司,北京,100053
  2. 国网冀北电力有限公司
  3. 许继电源有限公司
  4. 郑州大学电气与信息工程学院
  5. 河南省电力电子与电力系统工程技术研究中心,郑州,450001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2026
- 稿件说明：
移动端阅览
Liu Hanmin, Chen Jian, Zhu Kangfu, et al. Virtual frequency-based minimum return power modulation strategy for single-stage isolated AC-DC converter[J]. 2026, 63(10).
DOI：

Liu Hanmin, Chen Jian, Zhu Kangfu, et al. Virtual frequency-based minimum return power modulation strategy for single-stage isolated AC-DC converter[J]. 2026, 63(10). DOI：

摘要

针对单级隔离型交流-直流（alternating current-direct current，AC-DC）变换器调制非线性和回流功率较大的问题，提出一种基于虚拟频率的最小回流功率调制策略。对双有源桥（dual active bridge，DAB）型变换器扩展移相（extended phase shift，EPS）调制策略进行时域分析，得到其功率传输特性，并在此基础上，分析变换器非线性问题与回流功率影响。引入虚拟频率的概念，提出基于虚拟频率的线性化调制与最小回流功率优化策略。该调制策略不仅可以降低变换器的调制复杂度，还可以有效降低变换器回流功率，同时保证开关管实现全范围内的电流开关（zero current switching，ZCS）关断或电压开关（zero voltage switching，ZVS）导通。最后，通过仿真与实验验证，证明了所提调制策略的有效性。

Abstract

Aiming at the problems of modulation nonlinearity and large backflow power in single-stage isolated alternating current-direct current（AC-DC） converters

this paper proposes a minimum backflow power modulation strategy based on virtual frequency. A time-domain analysis is conducted on the extended phase shift (EPS) modulation strategy for dual active bridge (DAB) converters. The power transmission characteristics are obtained. On this basis

the nonlinearity problem of the converter and the influence of backflow power are analyzed. To solve the aforementioned problems

the concept of virtual frequency is introduced. A linearized modulation and minimum backflow power optimization strategy based on virtual frequency is put forward. This modulation strategy can not only reduce the modulation complexity of the converter

but also effectively decrease the backflow power of converters. Meanwhile

it ensures that the switches achieve zero current switching (ZCS) turn-off or zero voltage switching (ZVS) turn-on over the entire range. Finally

the effectiveness of the proposed modulation strategy is verified through simulations and experiments.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

The Active Clamp Flyback type Micro PV Grid Inverter Efficiency Analysis

Research on Passive Lossless Soft-Switching Topology Applied in Cuk Converters

Research on DC/DC converter of Electric Vehicle

Decoupled control strategy based on duty-ratio active regulation for clamping switched capacitors-based DC/DC application

Optimal configuration of shared energy storage considering alignment demand response

Related Author

Sun peng

Zhao qiqi

Fang yu

zhangli

DENG Xiang

DIAN Song-yi

ZHENG Wan-li

Yao Hongchun

Related Institution

扬州大学

四川大学电气信息学院自动化系

中国电力科学研究院新能源研究所

国网电力科学研究院

南京邮电大学

AI问答

⁰