Grid-connected power generation is the most economical mode for large wind power generation system to utilize wind energy high efficiently and on a large scale, which has been the main way of utilizing wind energy in the present world. The working process and advantages and disadvantages of grid-connected precepts for various kinds of wind power generation systems were reviewed and analyzed. The result shows that with the increase of wind turbine unit capacity, the impulse current will be increased and the influence on the grid stability will become larger and larger, so how to improve all kinds of the present grid-connected technologies and reduce the impact to the grid arc the problems that should be solved urgently for the future.%大型风力发电机组并网发电是高效、大规模利用风能最经济的方式,已成为当今世界风能利用的主要形式.对当前各种类型风力发电机组并网方案的工作过程及优缺点进行综述和分析,指出随着风电机组容量的增大,并网瞬间的冲击电流也越来越大,对电网运行稳定性的影响也越来越大,因此如何改进现有的各种并网技术、减少对电网的冲击是今后迫切需要解决的问题.
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