小型电厂接入系统短路电流的限制措施

Suppression measures of short-circuit current in connecting to power system of small power plant

针对小型电厂接入系统导致短路电流超标的问题,通过一个具体工程实例的校核计算,分析比较了各种限流措施的优缺点,着重阐述了限流电抗器安装位置对限流效果的影响,提出了相关建议,为工程设计提供参考。

Aiming at the exceeding limit of short-circuit current in connecting to power system of the small power plants,the advantages and disadvantages of various suppression measures of short-circuit current were compared and analyzed by the calculations and verifications of a practical project.The influence of installation position of the current-limiting reactor on current suppression effect was illustrated emphatically,and some related suggestions were proposed for engineering design as reference.