在可再生能源发展中,目前风能以其可开发容量大和造价相对较低等特点,成为电网系统中相对增长最快的新能源,但风电并网存在许多问题亟待解决。本文对基于VSC-HVDC(Voltage source converter high voltage direct current)风电场并网控制技术进行了研究分析,解决风力场引起的功率和电压波动问题。
其他摘要
In recent years,with the development of power electronics,VSC (voltage source converter) has became an active player in electricity transmission and distribution.This paper is mainly concerned about a VSC-HVDC(Voltage source converter high voltage direct current) converters to connect a wind farm and also to improve the fault ride-through capability of the wind farm at the expense of the AC fault.Because of a high degree of flexibility and controllable characteristics,VSC-HVDC primarily finds its application in the field of renewable energy distributed generation,supplying of isolated load,asynchronous network interconnection and other fields.In renewable energy,Wind power is one of the fastest growing sustainable energy resources over the past decade. But the integration of wind generation to power grid can bring many power quality problems because of the randomicity and intermittence of wind energy,the relevant influences on the host grids need to be carefully investigated.
修改评论