宁夏电力Issue(1)：10-14,23,6.DOI:10.3969/j.issn.1672-3643.2026.01.002
交流滤波器选相合闸动态精度评估与误差补偿算法研究
Research on dynamic accuracy evaluation and error compensation algorithm for phase-selected closing of AC filters
摘要
Abstract
The phase-selected closing accuracy of AC filters in high-voltage direct current(HVDC)transmission systems is influenced by variations in operating conditions,measurement deviations,control delays,and switching dispersion.The resulting switching phase error(SPE)poses potential risks to equipment safety and system stability.To address this issue,a systematic solution is proposed.First,a multidimensional dynamic accuracy evaluation framework and a comprehensive error propagation model are established to quantitatively analyze SPE.Then,an online error identification and compensation algorithm is developed,in which an improved adaptive extended Kalman filter(EKF)is employed to fuse multi-source information in real time for identifying error components.An adaptive feedforward strategy combined with EKF-based prediction is further used to dynamically correct closing commands.Rigorous simulation and hardware-in-the-loop(HIL)verification demonstrate that the proposed algorithm significantly enhances closing accuracy,reducing the root mean square value of SPE,while exhibiting strong robustness under complex operating conditions such as voltage fluctuations and harmonic disturbances.This study provides effective theoretical methods and technical support for improving the reliability of HVDC projects.关键词
选相合闸/动态精度评估/相位误差补偿/扩展卡尔曼滤波/硬件在环验证Key words
phase-selected closing/dynamic accuracy evaluation/phase error compensation/extended Kalman filter/hardware-in-the-loop(HIL)verification分类
信息技术与安全科学引用本文复制引用
陆洪建,吴明凯,赵欣洋,朱彦磊,刘晓光,付庆钊..交流滤波器选相合闸动态精度评估与误差补偿算法研究[J].宁夏电力,2026,(1):10-14,23,6.基金项目
国网宁夏电力有限公司科技项目(5229CG24000P) （5229CG24000P）
