风电机组短路故障及应对策略研究

Research on Short Circuit Faults and Coping Strategies of Wind Turbines

近年来,伴随社会各界对可再生能源重视程度的不断加深,并以此为契机,大力发展以风力发电为代表的新能源发电技术.风电场规模不断扩大,同时国家对风电机组的并网运行也提出了更高的要求.一直以来,短路故障是影响电网安全可靠运行的主要因素,电力系统在发生短路之后,电路结构也会随之发生改变,造成系统中功率分布的变化,从而影响发电机转速,破坏发电系统的稳定性,引起大片地区面临停电现象.本文在分析风电机组短路电流特性的前提下,对风电机组短路故障进行分析,并提出几点应对策略.

In recent years,with the increasing emphasis on renewable energy in all walks of life,and taking this opportunity to vigorously develop new energy power generation technology represented by wind power generation,the scale of wind farms is expanding,and the country is connected to wind turbines.The operation also puts forward higher requirements.All along,short-circuit fault is the main factor affecting the safe and reliable operation of the power grid.After the short-circuit occurs in the power system,the circuit structure will also change,causing the power distribution in the system to change,thus affecting the generator speed and destroying the stability of the power generation system.Sex,causing power outages in large areas.Based on this,this paper analyzes the short-circuit fault of wind turbines under the premise of analyzing the short-circuit current characteristics of wind turbines,and puts forward some countermeasures.