线性趋势预测的电厂关口电量追补研究

Analysis of Point Electric Energy Compensation Based on Linear

关口计量准确关系到供电企业和用户的利益,本文针对电厂关口电量少计研究追补算法,采用线损法和线性拟合,针对实际问题进行对比研究。因为理论线损受环境影响,计算误差较大,采用电厂和变电站的计量差值统计实际线损,考虑到电厂和变电站两个回路的相似性,利用计量正常的II回实际线损计算追补电量,线性拟合法对计量异动前后时段数据进行线性拟合,通过线性趋势拟合预测得出追补电量。结合某关口电量少计案例,将短期采集的样本分为样本集和测试集,两种算法对比,在供电企业短期生产状况稳定情况下线性拟合法计算结果的准确度高于线损法。

The accuracy of point electric energy measurement is related to the interests of power supply enterprises and users.This paper research the methods of power compensation in point electric energy less electricity,and use contrastive study of line loss method and linear fitting method analysing practical problems.Because of the theoretical line loss is affected by the environment, the calculation error is large, the measurement difference of the power plant and substation is used to calculate the actual line loss.Considering the similarity between the two circuits of power plant and substation.Using the II power plant substation actual line loss to catch-up power.The linear fitting method is used to linearly fit the data in the vicinity of the measurement anomaly.Predicting the charge by linear trend fitting.Combined with a less electricity meter case in a point electric energy measurement, the samples collected in short time are divided into sample set and test set.Compared with the two algorithms, the accuracy of the linear fitting method is higher than that of the line loss method when the short-term production condition of the power supply enterprise is stable.