投产运行风电场电能质量检测分析及控制措施研究

Research on Power Quality Inspection Analysis and Control Measures of Wind Farms in Operation

现阶段,风力发电已成为电力能源的重要组成部分。由于风电场并网运行中存在引发电能质量畸变导致风电场脱网情况,因此大规模的风电场并网发电为电力系统运行的稳定性带来了挑战。新建风电场在设计时可采用无功补偿装置改善电能质量,但早期投产运行风电场由于在电能质量控制措施上考虑不足,所以在系统结构发生变化后,将无法满足并网运行的要求。针对此类问题,分析风电场并网发电过程中的间歇性运行特点,结合某已投产风电场电能质量检测结果,探讨电能质量变化对风电场并网的影响,提出有效提高系统电能质量的措施,为推动我国风电场并网技术发展提供有力的经验参考与技术支持。

At this stage,wind power generation has become an important part of electric energy.Due to the power quality distortion caused by the grid-connected operation of wind farms,the wind farms are disconnected from the grid.Large-scale wind farms’grid-connected power generation has brought about the stability of the power system challenge.Newly built wind farms can improve power quality by adopting reactive power compensation devices at the time of design.However,due to insufficient consideration of power quality control measures in early operation of wind farms,after the system structure changes,it will not be able to meet the requirements for grid-connected operation.In response to such problems,this article analyzes the intermittent operation characteristics of wind farms connected to the grid,and combines the power quality test results of a wind farm that has been put into operation.It discusses the impact of power quality changes on wind farms connected to the grid,and proposes effective improvements.The measures of system power quality provide powerful empirical reference and technical support for promoting the development of wind farm grid-connected.