CAJ | 학술논문

为考察牵引网与交直交列车耦合系统谐波谐振特性，基于列车四象限变流器的工作机理，搭建牵引网与交直交列车耦合谐波谐振分析模型；分析耦合系统谐振产生的机理及谐振频率与危害度的影响因素。基于 Matlab/Simulink 搭建了牵引网与列车负荷联合仿真系统，仿真分析谐振对网压的影响；针对联合仿真系统，提出一种谐振频率辨识方法；基于该方法，针对列车不同功率、不同位置、不同运行工况，仿真分析耦合系统谐振频率的变化规律。仿真研究结果表明：本文建立的耦合谐波谐振分析模型能有效分析牵引网与列车耦合系统的谐波谐振机理与特性；联合仿真系统可用于深入研究谐振对耦合系统的影响，为有效降低谐振危害提供思路。
위고찰견인망여교직교열차우합계통해파해진특성，기우열차사상한변류기적공작궤리，탑건견인망여교직교열차우합해파해진분석모형；분석우합계통해진산생적궤리급해진빈솔여위해도적영향인소。기우 Matlab/Simulink 탑건료견인망여열차부하연합방진계통，방진분석해진대망압적영향；침대연합방진계통，제출일충해진빈솔변식방법；기우해방법，침대열차불동공솔、불동위치、불동운행공황，방진분석우합계통해진빈솔적변화규률。방진연구결과표명：본문건립적우합해파해진분석모형능유효분석견인망여열차우합계통적해파해진궤리여특성；연합방진계통가용우심입연구해진대우합계통적영향，위유효강저해진위해제공사로。
In order to research the harmonic resonance characteristics of the coupling system of a traction network and ac-dc-ac trains, a coupling resonance analytical model was established based on the working mechanism of the train’s four-quadrant converter. The resonance mechanism of the coupling system and the influencing factors of the resonance frequencies and resonance damage degree were analyzed based on it. Then a combined simulation system comprising a traction network and trains was put up based on Matlab/Simulink, and the simulation study of the resonance influence on the power net voltage was made. A resonant frequency identification method was put forward, and it was applied to research the resonant frequency variations of the coupling system under the different powers, the different positions and the different operating modes. The simulation results show that the coupling resonance analytical model presented by this paper is effective to analyze the resonance mechanism and characteristics of the coupling system, and the combined simulation system is useful for further studying the resonance influences on the coupling system, and it provides ideas to reduce the resonance damages.