一种用于家用智能电表的负荷识别方法

A Load Identification Method for Household Smart Meter

为了能给电力用户提供类似电话清单的用电清单,帮助用户调整和规划家电的使用实现节能,提出一种运用相似度比较,可用于家用智能电表的负荷识别方法。该方法取家用电器正常工作时的稳态和暂态功率特性作为特征量,通过比较测量数据与数据库模板的相似度来确定用电负荷的类别、工作状态,然后匹配开关事件得到相应的耗电量。该方法不需要事先经过样本数据训练或学习过程,就能识别出家庭中典型的阻性和非阻性电器,进而分解出家庭中主要电器的用电情况。通过对实验家庭用电情况的实测数据分析和与其他方法的比较,验证了该方法的有效性和准确性。

In order to provide power consumers with the list of electricity consumption which is similar to that of telephone charge,and to help homeowners adjust and plan the usage of household appliances to save energy,a load identification method for household smart meter is proposed by using similarity comparison.Based on the steady and transient power characteristics of household appliances in normal operation condition,the electrical loads categories and operating status are determined by comparing the similarity between measured data and template in database,and corresponding energy consumption is obtained by matching the on and off events.The method can recognize typical resistive and non-resistive appliances without training or learning process of sample data in advance,and then discompose the energy consumption of major home appliances.The validity and accuracy of this method are verified through analyzing of the data measured in a family and its comparison with other methods.