To improve the sensitivity of identification, the algorithm based on t test is presented to solve the problems of misidentifying and failing to identify the anomalous data.

• 介绍了电力负荷异常数据的形成原因和分类,针对目前异常数据辨识方法灵敏度不高、易漏判、误判的现状,提出了基于数理统计中t检验对异常数据进行辨识和修正的算法。