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中文摘要：
大规模风电接入系统对电力系统电能质量的影响较大。风能的随机性和不可控性，使风电占系统容量的份额增大时，向系统提供的短路电流也越来越大，因此，风电保护配置对电网的影响也是重要的。文章对风电系统保护进行了论述，分析了风电对电网继电保护的影响，使用MATLAB的动态仿真工具SIMULINK．对包含风电场的单机无穷大电力系统发生联络线故障时进行动态仿真。通过分析双馈发电机不同故障类型下的故障电压、电流曲线，指出风电场应采用的适应性保护。
英文摘要：
Large-scale wind power grid connection has shown its obvious influence on the energy quality of the whole power grid. Due to the characteristics of randomness and uncontrollability of wind energy, the short circuit current provided by the wind power system will be gradually in- creased along with the increasing of the proportion of wind energy in the whole power system, thus, the suitable wind power protection facilities are important for the whole power grid. The ar- ticle analyzed the protection technology for wind power system, also analyzed the influence of wind power on the relay protection for power grid, with the help of the dynamic simulation tool of SIMULINK in MATLAB, the dynamic simulation has been carried out for a one-machine infinite bus power system when the connection fault occurs in the system. Through the analysis on the failure voltage, current curve of the double-fed generator at different fault types, the suitable protection measures have been proposed.
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