风电场内部无功功率对并网稳定性的影响

由于风电场的建立受地理位置的限制，大多数风力发电厂都要建立在电力系统末端，风电并网最重要的影响方面就是因电压质量带来的系统运行不稳定性。为提高风电场并网运行时系统的稳定性，该文以实际的风电场为例，对风电场内部无功损耗产生的原因进行分析，在不影响风电系统稳定性的前提下，通过计算利用一组风力发电机发无功功率来补偿因无功功率给并网系统带来的电压波动，满足并网运行系统稳定性的要求。

Impact of reactive power in wind farm on grid stability

In recent years, the development and utilization of renewable energy has been paid more and more attentions. Wind power is becoming the cheapest and most promising green energy. With the development of wind power technology, the proportion of wind power to the traditional energy becomes larger and larger gradually. As for the limitation of geographical location in wind farm establishment, most of the wind power farm plants are built on the end of the power system, wind power has great impacts on voltage quality of the grid in the actual wind farm. By analyzing the causes of reactive power loss in the internal wind farm, on the assumption that ensuring the operating stability of the wind farm system, a wind turbine was used for generating reactive power to compensate for the voltage fluctuations of the gird system caused by reactive power through specific calculating, so as to meet the requirements of the network operating system stability. The results show that the method is feasible.