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首页> 外文会议>2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies >Investigation on fundamental issues of dynamic equivalent modeling of wind farms
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Investigation on fundamental issues of dynamic equivalent modeling of wind farms

机译：风电场动态等效模型基本问题研究

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This paper takes the GE1.5MW DFIG wind turbine as an example, to simulate and analyze the transient response characteristics of the wind turbine under different wind velocities. Three critical issues related to dynamic equivalent modeling of wind farms are summarized by intensive investigations. Firstly, the wind turbines working on low wind speed are found to consume a large number of active power during the transient process, and their transient current and active power response curves sometimes are close to ones working on high wind speeds. Consequently, the wind turbines working on low wind speeds cannot be ignored casually for dynamic modeling of wind farms. Secondly, a counterintuitive phoneme, i.e. more clusterings is not necessarily to have higher equivalent accuracy, is found, since the transient current and active power curves of the wind turbines working on various wind speeds show significant and nonlinear differences in amplitude, fluctuations and transient response time. Finally, for a large wind farm with long collector lines and complicated configurations, the equivalent network impedance, calculated by the equivalent power loss rule, is seen to be able to guarantee the consistency only during the steady-state process instead of the transient one between the detailed and equivalent models. Studies about the dynamic characteristics of the collector network impedance should be emphasized.
机译：本文以GE1.5MW DFIG风力发电机组为例，对不同风速下的风力发电机组的瞬态响应特性进行仿真分析。深入研究总结了与风电场动态等效建模有关的三个关键问题。首先，发现在低风速下运行的风力涡轮机在瞬态过程中会消耗大量有功功率，并且它们的瞬态电流和有功功率响应曲线有时接近于在高风速下工作的曲线。因此，对于风电场的动态建模，低速运行的风力涡轮机不能被随意忽略。其次，发现了违反直觉的音素，即不一定要有更多的聚类，因为在各种风速下工作的风力涡轮机的瞬态电流和有功功率曲线在幅度，波动和瞬态响应上显示出明显的非线性差异。时间。最后，对于具有较长集电极线路和复杂配置的大型风电场，由等效功率损耗法则计算出的等效网络阻抗被视为能够保证仅在稳态过程中的一致性，而不是在稳态过程中的瞬态阻抗。详细的等效模型。应重点研究集电极网络阻抗的动态特性。

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