南方电网技术2024，Vol.18Issue(10)：95-106,160,13.DOI:10.13648/j.cnki.issn1674-0629.2024.10.010
基于自适应有源阻尼的宽频域谐振抑制器
Wide-Band Resonance Suppressor Based on Adaptive Active Damping
摘要
Abstract
Wind turbines connected to the power grid through series and parallel compensation can reduce line losses and effectively improve line transmission power and system stability.However,the interaction between the compensation capacitor and the wind turbine control device may cause a wide-band resonance stability problem including sub-synchronous resonance(SSR)and high frequency resonance(HFR).Considering two types of grid-connected lines,series compensation and parallel compensation,the impedance model of doubly-fed wind turbine grid-connected system is deduced and established.An impedance method is used to analyze the mechanism of wide-band resonance of wind turbine grid connected system,and an adaptive wide-band resonance suppres-sor is proposed and designed,which is connected in parallel to the point of common coupling(PCC).By extracting the resonant volt-age of PCC and using the method of harmonic content limitation,a damping resistor is synthesized to suppress the wide-band resonance generated by the system.Finally,an equivalent system model of wind power grid integration system is built in MATLAB/Simulink,and the correctness and effectiveness of the adaptive wide-band resonance suppressor are verified by time domain simulation.关键词
风电并网/宽频域谐波谐振/阻抗分析法/自适应有源阻尼Key words
wind power integration/wide-band resonance/impedance analysis/adaptive active damping分类
信息技术与安全科学引用本文复制引用
李志军,张俊杰,贾杨..基于自适应有源阻尼的宽频域谐振抑制器[J].南方电网技术,2024,18(10):95-106,160,13.基金项目
国家自然科学基金资助项目(U20A201284). Supported by the National Natural Science Foundation of China(U20A201284). （U20A201284）
