计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究

李秋硕; 董新伟; 王垚鑫; 年珩; 吕康飞; 赵建勇

doi:doi:10.19912/j.0254-0096.tynxb.2024-0948

欢迎来到能源电力期刊网！

English Version 读者登录期刊登录

您当前的位置：

首页 >

文章列表页 >

计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究

更新时间：2025-12-17

- 计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究
- 计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究
- 太阳能学报 2025年第10期页码：403-411
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：doi:10.19912/j.0254-0096.tynxb.2024-0948
  中图分类号： M46
- 网络出版：2025-10-31，
  
  纸质出版：2025-10-31
- 稿件说明：
移动端阅览
李秋硕, 董新伟, 王垚鑫, 等. 计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究[J]. 太阳能学报, 2025,(10):403-411.

李秋硕, 董新伟, 王垚鑫, et al. 计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究[J]. 2025, (10): 403-411.
李秋硕, 董新伟, 王垚鑫, 等. 计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究[J]. 太阳能学报, 2025,(10):403-411. DOI： doi:10.19912/j.0254-0096.tynxb.2024-0948.

李秋硕, 董新伟, 王垚鑫, et al. 计及直流电压控制的跟网型变流器暂态稳定分析与增强策略研究[J]. 2025, (10): 403-411. DOI： doi:10.19912/j.0254-0096.tynxb.2024-0948.

摘要

针对弱电网下的跟网型变流器（GFL-VSC）

在计及直流电压控制（DVC）影响的条件下

研究其稳定运行及同步控制策略。首先

建立考虑DVC的GFL-VSC大扰动模型。在此基础上

通过类比传统同步发电机转子功-角摇摆方程

推导出系统阻尼比

从而反映出电网电压跌落故障下系统的暂态失稳机理和影响因素

通过绘制系统功率-电流曲线分析系统平衡点的存在性和稳定性。进而

提出一种基于锁相环自适应参数和功角补偿及可变角速度的GFL-VSC暂态稳定性提升方法。最后

Matlab/Simulink仿真结果证明了暂态稳定分析的准确性和所提控制策略的有效性。

Abstract

Considering the influence of DC-link voltage control（DVC）

the stable operation and synchronization control strategy of grid-following converters under weak grid conditions are studied. Firstly

a large disturbance model of grid-following converters with consideration of DVC is established. Based on this

by analogy with the rotor angle oscillation equation of traditional synchronous generators

the damping ratio of the system is derived

reflecting the transient instability mechanism and influencing factors under large disturbances. The existence and stability of the system equilibrium point are analyzed by drawing the power-current curve of the system. Then

a transient stability enhancement method for GFL-VSC based on phase-locked loop adaptive parameter

power angle compensation

and variable angular velocity is proposed. Finally

the simulation results of Matlab/Simulink prove the accuracy of the transient stability analysis and the effectiveness of the proposed control strategy.

关键词

Keywords

references

王继磊, 张兴, 韩峰, 等. 并网逆变器LVRT同步稳定性分析及其优化策略[J]. 太阳能学报, 2024, 45(2): 309-317.

李海盼, 年珩, 胡彬, 等. 风电并网系统宽频振荡分析与抑制方法综述[J]. 新型电力系统, 2023(3): 237-255.

詹长江, 吴恒, 王雄飞, 等. 构网型变流器稳定性研究综述[J]. 中国电机工程学报, 2023, 43(6): 2339-2359.

杨天翔, 程志江, 杨涵棣, 等. 基于自抗扰控制的风电并网变流器锁相环设计[J]. 太阳能学报, 2023, 44(4): 147-155.

WANG Z H, ZHU G F, WU H, et al.Current reference control scheme of voltage source converters to ensure the existence of stable equilibrium points during grid fault[J]. IEEE transactions on power electronics, 2023, 38(9): 10750-10765.

WANG X F, BLAABJERG F.Harmonic stability in power electronic-based power systems: concept, modeling, and analysis[J]. IEEE transactions on smart grid, 2019, 10(3): 2858-2870.

胡彬. 双馈风电机组并网稳定运行分析及同步控制策略研究[D]. 杭州: 浙江大学, 2023.

WANG X W, YAO J, PEI J X, et al.Analysis and damping control of small-signal oscillations for VSC connected to weak AC grid during LVRT[J]. IEEE transactions on energy conversion, 2019, 34(3): 1667-1676.

LU S Q, XU Z, XIAO L, et al.Evaluation and enhancement of control strategies for VSC stations under weak grid strengths[J]. IEEE transactions on power systems, 2018, 33(2): 1836-1847.

LIU R K, YAO J, WANG X W, et al.Dynamic stability analysis and improved LVRT schemes of DFIG-based wind turbines during a symmetrical fault in a weak grid[J]. IEEE transactions on power electronics, 2020, 35(1): 303-318.

MA Y M, ZHU D H, ZHANG Z Q, et al.Modeling and transient stability analysis for type-3 wind turbines using singular perturbation and Lyapunov methods[J]. IEEE transactions on industrial electronics, 2023, 70(8): 8075-8086.

YANG Y H, ZHU D H, ZOU X D, et al.Power compensation control for DFIG-based wind turbines to enhance synchronization stability during severe grid faults[J]. IEEE transactions on power electronics, 2022, 37(9): 10139-10143.

WU H, WANG X F.Design-oriented transient stability analysis of PLL-synchronized voltage-source converters[J]. IEEE transactions on power electronics, 2020, 35(4): 3573-3589.

LIU Y, YAO J, PEI J X, et al.Transient stability enhancement control strategy based on improved PLL for grid connected VSC during severe grid fault[J]. IEEE transactions on energy conversion, 2021, 36(1): 218-229.

TANG W, HU J B, CHANG Y Z, et al.Modeling of DFIG-based wind turbine for power system transient response analysis in rotor speed control timescale[J]. IEEE transactions on power systems, 2018, 33(6): 6795-6805.

TEODORESCU R, LISERRE M, RODRÍGUEZ P. Grid converters for photovoltaic and wind power systems[M]. New York: John Wiley & Sons, 2011.

LIU T, WANG X.Transient stability of single-loop voltage-magnitude controlled grid-forming converters[J]. IEEE transactions on power electronics, 2020, 35(4): 3573-3589.

吴东, 汪海宁, 房志学, 等. 基于微网储能变流器的故障穿越控制[J]. 太阳能学报, 2020, 41(10): 66-73.

WANG Y X, NIAN H, LI M, et al.Transient stability analysis of grid-following converters with DC-link voltage control considering bidirectional power flow[C]//IECON 2023: 49th Annual Conference of the IEEE Industrial Electronics Society. Singapore, Singapore, 2023: 1-5.

TAUL M G, WANG X F, DAVARI P, et al.An efficient reduced-order model for studying synchronization stability of grid-following converters during grid faults[C]//2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL). Toronto, ON, Canada, 2019: 1-7.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

新能源场站电化学储能暂态能量支撑优化控制模型

基于改进鲸鱼优化算法的双馈风电机组控制参数辨识

低电压穿越快速恢复与对微网频率影响研究

基于LSTM优化虚拟阻抗的光伏机组低电压穿越方法

并网异步风力发电机组模型及参数对其暂态稳定性的影响