Resonance Damping Characteristic Analysis of Distributed Inverter-based System with Grid Voltage Feed-forward Control in Weak Grid

MIAO Lifang; WANG Yueyuan; CAO Bin; SU Ke; WANG Qi

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Resonance Damping Characteristic Analysis of Distributed Inverter-based System with Grid Voltage Feed-forward Control in Weak Grid

更新时间：2025-12-08

- Resonance Damping Characteristic Analysis of Distributed Inverter-based System with Grid Voltage Feed-forward Control in Weak Grid
- Vol. 46, Issue 10, Pages: 3521-3532(2020)
- 作者机构：
  
  内蒙古电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 October 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
MIAO Lifang, WANG Yueyuan, CAO Bin, et al. Resonance Damping Characteristic Analysis of Distributed Inverter-based System with Grid Voltage Feed-forward Control in Weak Grid[J]. 2020, 46(10): 3521-3532.
DOI：

MIAO Lifang, WANG Yueyuan, CAO Bin, et al. Resonance Damping Characteristic Analysis of Distributed Inverter-based System with Grid Voltage Feed-forward Control in Weak Grid[J]. 2020, 46(10): 3521-3532. DOI：

摘要

弱电网下电网电压前馈控制的实际电压前馈量包含电容电压信息

会影响分布式逆变系统（distributed inverter based system

DIBS）的谐振阻尼特性。考虑数字控制延迟

建立电网电压前馈电容电流反馈控制DIBS的数学模型。根据Mason规则对数学模型框图进行等效变换

得到控制环形成的等效虚拟阻抗

并进行阻抗特性分析。基于系统开环增益的Bode图

分析不存在数字控制延时和存在数字控制延时两种情况下电网电压前馈对DIBS谐振阻尼特性的影响。理论分析和仿真结果表明

两种情况下电网电压前馈会偏移谐振频率

数字控制延时一定程度上会改善电容电流反馈控制的谐振阻尼效果

提高系统稳定对电网阻抗变化的鲁棒性。

Abstract

Resonance damping characteristics of a distributed inverter-based system（DIBS） will be influenced by grid voltage feed-forward control in weak grid condition as the actual feed-forward component contains information of capacitor voltage. By taking the digital control delay into consideration

a mathematical model of grid voltage feed-forward and capacitor current feedback controlled DIBS is established. According to Mason rules

the equivalent virtual impedance formed by control loop is obtained through a set of equivalent transformation

and corresponding impedance characteristics are analyzed. Base on Bode diagrams of system open-loop gain

the influence of grid voltage feed-forward control on resonance damping characteristic of DIBS is fully discussed in the presence and absence of digital control delay. Theory analysis and simulation results show that grid voltage feed-forward can shift resonance frequency under the both conditions. In addition

the damping performance of capacitor-current feedback control can be improved

and the robustness of system stability against grid impedance variation with digital control delay can be Increased.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Stability Analysis and Control Strategy of Parallel Storage Inverter System Working Under the Micro-grid’s Island Condition

Stability Analysis on DC-link Voltage of Wind Turbine Grid-connected Converter as Integrated to Weak Grid

Virtual Inductance Control for Enhancing Stability of LCL Inverter in Weak Grid

Inverter Parallel Control Strategy Based on Variable Virtual Impedance

Stability Analysis of Phase-locked Loop Synchronized DFIGs in Weak Grids

Related Author

HUI Dong

LI Jianlin

XU Shaohua

LIN Chang

YAN Heming

LIU Dong

ZHAI Xuebing

HUANG Yunhui

Related Institution

China Electric Power Research Institute

State Key Laboratory of Advanced Power Transmission Technology, State Grid Global Energy Interconnection Research Institute

College of Automation, Wuhan University of Technology

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

School of Mechanical Engineering and Automation, Harbin Institute of Technology

AI问答

⁰