CAJ | 학술논문

在建立适用于小干扰稳定性分析的双馈感应风电机组(double-fed induction generator，DFIG)数学模型的基础上，采用特征值分析法详细研究风电并网线路长度及不同风电穿透率对电力系统阻尼特性的影响。理论分析和仿真结果表明：双馈感应风电机组接入后系统的阻尼特性得到了一定的改善，但随着系统风电穿透率增加到一定程度时，系统阻尼有变弱的趋势，当风力机接入系统电气距离在一定范围内增加时，系统阻尼有变强的趋势。
재건립괄용우소간우은정성분석적쌍궤감응풍전궤조(double-fed induction generator，DFIG)수학모형적기출상，채용특정치분석법상세연구풍전병망선로장도급불동풍전천투솔대전력계통조니특성적영향。이론분석화방진결과표명：쌍궤감응풍전궤조접입후계통적조니특성득도료일정적개선，단수착계통풍전천투솔증가도일정정도시，계통조니유변약적추세，당풍력궤접입계통전기거리재일정범위내증가시，계통조니유변강적추세。
On the basis of building a mathematical model of doubly-fed induction generator applicable to small signal stability analysis, a detailed study is made about the impact of the line length of wind power integration and the penetration of wind power on damping characteristics of the power system by eigenvalue analysis method. Theoretical analysis and simulation results show that after doubly-fed induction generator’s access to power system, the damping characteristics of the system have been improved. But with the penetration of wind power of the system reaching to a certain extent, system damping tends to become weak .When the electrical distance of DFIG’s access to power system increases within a certain range, system damping has a tendency to become strong.