基于平均化理论的PWM变流器电磁暂态快速仿真方法：（一）PWM变流器分段平均模型的建立

XU Yin

您当前的位置：

首页 >

文章列表页 >

基于平均化理论的PWM变流器电磁暂态快速仿真方法：（一）PWM变流器分段平均模型的建立

更新时间：2025-08-13

- 基于平均化理论的PWM变流器电磁暂态快速仿真方法：（一）PWM变流器分段平均模型的建立
- Automation of Electric Power Systems Vol. 37, Issue 11, Pages: 58-64(2013)
- 作者机构：
  
  清华大学电机工程与应用电子技术系,北京市,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
移动端阅览
XU Yin. [J]. Automation of electric power systems, 2013, 37(11): 58-64.
DOI：

XU Yin. [J]. Automation of electric power systems, 2013, 37(11): 58-64. DOI：

摘要

为提高分布式发电系统和微电网电磁暂态仿真的效率，基于非线性动态系统的平均化理论，提出了脉宽调制（PWM）变流器的分段平均模型。该模型在开关周期内对PWM变流器的状态方程进行局部平均化，将脉冲形式的开关函数转化为分段常数函数，从而可以采用更大的积分步长进行仿真以提高效率。进一步，文中给出了PWM变流器分段平均模型的误差估计定理及状态变量纹波的近似表达式。最后，通过三相PWM AC-DC变流器算例验证了所述分段平均模型的有效性。

Abstract

To improve computational efficiency of the electromagnetic transient simulations of distributed generation systems and microgrids，a piecewise averaged model of pulse width modulation（PWM）converters based on the averaging theory of nonlinear dynamic systems is proposed.The local averaged state equation for PWM converters in each switching period is derived.It converts the switching functions into piecewise constant functions.Then large integral time step can be chosen to speed up the simulations.Error estimation theorem for the proposed model is provided and the approximate expression of state variable ripple is given as well.The proposed model is verified by simulating a three-phase PWM AC-DC converter.

关键词

Keywords

references

Views

3134

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

基于平均化理论的PWM变流器电磁暂态快速仿真方法：（二）适用PWM变流器分段平均模型的改进EMTP算法

Time-domain Waveform Based Adaptive Current Differential Protection for Active Distribution Networks

Related Author

CHEN Zhilin

LIU Hao

BI Tianshu

BI Jiarui

LIU Chun

SUN Dan

ZHANG Mingyuan

WANG Haijiao

Related Institution

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University)

College of Electrical Engineering, Zhejiang University

State Key Laboratory of Renewable Energy Grid-integration (China Electric Power Research Institute)

School of Electrical and Electronic Engineering, Shandong University of Technology

Electric Power Dispatch and Control Center, Guangdong Power Grid Co., Ltd.

⁰