基于MCR的风电场动态无功补偿控制策略

Control strategy of the dynamic reactive power compensation in wind farm with MCR

近年来风电场数量及装机容量快速增长,风电接入系统给电网带来了越来越显著的影响。无功补偿作为改善风电场电能质量,提高系统运行稳定的重要措施,在风电场得到了广泛的应用。文章提出了一种基于风电场动态无功补偿装置的无功电压控制策略。通过测量并网点电压,充分利用MCR的连续调节特性,与FC投切相配合,满足风电场系统的无功电压需求。最后结合某含有MCR的实际风场进行了仿真分析,验证了所提出的策略正确性。

In recent years, the tem has a more and more signifi number of wind farms and its installed capacity grow rapidly. Wind power access sys- cant impact on power grid. As an important measure to improve the power quality and the stability of the system operation, reactive power compensation has been widely used in the wind farm. In this pa- per, a reactive power voltage control strategy based on dynamic reactive power compensation in wind farm was pro- posed. By measuring the grid-connected voltage of wind farm, it makes full use of continuous regulation characteristics of MCR and coordinates of switching FC to meet there active power voltage demands in wind farm. Finally, combining an actual wind farm with MCR for simulation analysis, the validity of proposed strategy was verified.