摘要
针对35 kV电缆线路谐振过电压问题,基于电磁暂态分析构建了参数优化模型,并整理了一套系统治理方案。该方案通过集成动态补偿电抗器与磁阀式调谐装置解决了原项目的谐波阻抗问题,开发了高磁导硅钢片PT,以控制铁芯饱和,同时,部署了复合阻尼系统,以实现系统的毫秒级响应。应用验证结果表明,该方案能显著降低过电压幅值,使年运维成本降低56%,为电缆网络谐波抑制提供技术支撑。
To address the resonance overvoltage issue in 35 kV cable lines,a parameter optimization model is constructed based on electromagnetic transient analysis,and a systematic governance scheme is developed.This scheme resolves harmonic impedance issues in the original project by integrating a dynamic compensation reactor with a magnetic valve-type tuning device.A high-permeability silicon steel sheet PT is developed to control core saturation,while a composite damping system is deployed to achieve millisecond-level system response.Application validation results demonstrate that the scheme significantly reduces overvoltage amplitude,cuts annual operation and maintenance costs by 56%,and provides technical support for harmonic suppression in cable networks.
作者
崔琨朋
田野
CUI Kunpeng;TIAN Ye(State Grid Tianjin Cable Company,Tianjin 300170,China)
出处
《自动化应用》
2025年第22期129-131,共3页
Automation Application
关键词
高压
电缆线路
谐振
过电压抑制
high-voltage
cable line
resonance
overvoltage suppression
