低电压穿越技术的分析及其在风力发电机组中的实现研究

Analysis of Low Voltage Ride Through Technology and Its Application Research in Wind Power Generator

随着风电在电网中所占的比例迅速提高，如何满足电力系统的稳定性问题成为了一个日益凸显的严峻课题。低电压穿越技术是一个具有代表性的强制性并网要求，尤其是在欧洲一些风电大国以及美国更是如此。为此本文从分析对比各国提出的低电压穿越要求入手，对主要竞争对手的情况进行了阐述，并在此基础上提出了直驱和双馈机组实现低电压穿越的几种解决方案。最后针对公司70／1500机组的低电压穿越特性进行了简单的阐述。

With the rapid increase in the proportion of wind power in the power network, how to satisfy the stability problem of power system has become a serious issue has become increasingly prominent. Low voltage ride through technology is a representative of the mandatory power, especially in some European wind power and American is even more so. In this paper, from the analysis of the demand of the low voltage through compare countries proposed, the main competitors were described. Based on the direct drive and DFIG achieve several low voltage ride through solution. Finally, low voltage for 70/1500 unit through the characteristics of a simple statement.