现代电力2024，Vol.41Issue(2)：380-391,12.DOI:10.19725/j.cnki.1007-2322.2022.0255
海上风电场经交流海缆并网谐波谐振放大分析
Analysis on Harmonic Resonance Amplification Induced by The Integration of AC Submarine Cable in Offshore Wind Farm
摘要
Abstract
Offshore wind farms connected to the power grid via AC submarine cables may experience harmonic resonance and harmonic amplification due to distributed capacitance of cable lines,which is not commonly observed in onshore wind farms.This poses a serious threaten to the safe and reliable op-eration of offshore wind farms.To investigate the mechanism of harmonic resonance in offshore wind farms and the influen-cing factors of harmonic amplification,we first established the state space mathematical model of the transmission network and collector network of offshore wind farms.The calculation methods of harmonic amplification factor,harmonic content,and other indicators were provided.The mechanism and key in-fluencing factors of harmonic resonance were then investigated by means of eigenvalues and participation factors.Additionally,the root locus method was utilized to investigate the impact of grid short-circuit capacity,cable parameters and the number of wind turbine generators(WTGs)on resonance modes.Finally,a model of an offshore wind power system in Jiangsu was con-structed on the Matlab/Simulink simulation platform,and the analysis results have confirmed the correctness of the theoretic-al analysis.关键词
海上风电场/状态空间模型/谐波谐振机理/谐波放大Key words
offshore wind farm/state-space model/har-monic resonance mechanism/harmonic resonance amplifica-tion分类
信息技术与安全科学引用本文复制引用
顾文,郑超航,杨宏宇,吴熙,汪泓,许皓珲..海上风电场经交流海缆并网谐波谐振放大分析[J].现代电力,2024,41(2):380-391,12.基金项目
江苏方天电力技术有限公司科技项目资助(KJ202101)Project Supported by Science and Technology Projects of Jiangsu Fangtian Power Technology Co.,Ltd(KJ202101) （KJ202101）
