多牵引变电所接入含风电电力系统的低频振荡分析

李天鸷; 张婷婷; 晏小彬; 苏 鹏; 吕晓琴; 蔡沛旻

doi:10.19783/j.cnki.pspc.260257

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多牵引变电所接入含风电电力系统的低频振荡分析

理论分析 | 更新时间：2026-09-23

- 多牵引变电所接入含风电电力系统的低频振荡分析
- Analysis of low-frequency oscillation in a wind power integrated power system with multi-traction substations
- 电力系统保护与控制 2026年54卷第18期
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- DOI：10.19783/j.cnki.pspc.260257
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- 纸质出版：2026
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李天鸷, 张婷婷, 晏小彬, 等. 多牵引变电所接入含风电电力系统的低频振荡分析[J]. 电力系统保护与控制, 2026,54(18).

LI Tianzhi, ZHANG Tingting, YAN Xiaobin, et al. Analysis of low-frequency oscillation in a wind power integrated power system with multi-traction substations[J]. Power System Protection and Control, 2026, 54(18).
李天鸷, 张婷婷, 晏小彬, 等. 多牵引变电所接入含风电电力系统的低频振荡分析[J]. 电力系统保护与控制, 2026,54(18). DOI： 10.19783/j.cnki.pspc.260257.

LI Tianzhi, ZHANG Tingting, YAN Xiaobin, et al. Analysis of low-frequency oscillation in a wind power integrated power system with multi-traction substations[J]. Power System Protection and Control, 2026, 54(18). DOI： 10.19783/j.cnki.pspc.260257.

摘要

随着风电为代表的新能源在电力系统中渗透率的持续提高，易出现电气化铁路牵引变电所和风电场同时接入电网公共连接点的情况，从而可能产生新的多类型电力电子并网稳定性问题。采用模块化建模方法，建立了两座牵引变电所接入含风电电力系统的谐波状态空间(harmonic state-space model

HSS)模型。该模型考虑了牵引变电所高压侧的换相连接和多条供电臂，进一步采用特征值分析法研究了列车不同空间分布下的系统低频振荡特性，以及风电场输出功率和列车功率变化对振荡的影响规律，分析了不同条件下风电场对系统低频振荡模式的参与因子的变化规律。最后，基于MATLAB/Simulink仿真平台，通过仿真验证了理论分析的正确性。

Abstract

With the continuous increase in the penetration of new energy sources

particularly wind power

into power systems

electrified railway traction substations and wind farms may be simultaneously connected to the grid at the same point of common coupling (PCC)

potentially introducing new types of power-electronic-based grid integration stability issues. In this paper

a modular modeling method is adopted to establish a harmonic state-space (HSS) model of a power system with two traction substations and a wind farm connected to the grid. This model takes into account the phase rotation connection scheme on the high-voltage sides of the traction substations and multiple feeder arms. Eigenvalue analysis is then used to study the low-frequency oscillation characteristics of the system under different spatial distributions of trains

as well as the influence of wind farm output power and train power variations on the oscillations. The variations in the participation factors of the wind farm in the system’s low-frequency oscillation modes under different conditions are analyzed. Finally

the correctness of the theoretical analysis is verified through simulations based on the MATLAB/Simulink platform.

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references

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