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دانلود رایکان مقاله انگلیسی ISI با موضوع بررسی مدل سازی معادل دینامیکی برای مزرعه بادی

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بررسی مدل سازی معادل دینامیکی برای مزرعه بادی

عنوان انگلیسی مقاله:

A survey of dynamic equivalent modeling for wind farm

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3. Dynamic equivalent model of wind farm

In order to simulate the dynamic performance of the wind farm at the point of common coupling (PCC) accurately, it is necessary to maintain the system dynamic output characteristic before and after the equivalence of the wind farm equivalent modeling. At present, the common modeling method for doubly-fed wind farm dynamic equivalence can roughly be divided into two kinds of representations: single-machine representation method and multi-machine representation method. In general, the modeling accuracy and robustness of multi-machine representation is better than singlemachine representation.

The following will discuss the two kinds of equivalent modeling methods respectively, and then the calculation method of corresponding equivalent unit parameters is discussed.

3.1. Single-machine representation method 

Single-machine representation method refers to the whole wind farm is represented with one wind turbine as the equivalent model. According to the difference of wind speed between all wind turbines, the method can be further classified into “1þ1” model (namely one wind turbine with one generator) and “nþ1” model (namely n wind turbines with one generator). The classification is given in Fig. 6.