统计线损数据准确性研究

当前普遍采用统计线损考核线损管理水平,但是缺乏统计线损的数据准确性的相关研究。为此,分析了影响统计线损数据准确性的误差因素,主要包括计量装置误差和计量装置配置差异。并在分析实际运行工况下的计量装置误差的基础上,提出了关口计量误差合成方法。指出在计算短时统计线损时,电量上传协议会显著影响统计线损准确性。结合线路实际参数和计量装置实负荷校验数据,通过仿真计算验证了实际运行工况下现有关口计量装置配置方案会对统计线损的准确性有较大影响。

Research on accuracy of statistical line losses

Statistical line loss is widely used in line loss management, but relevant research on accuracy of statistical line losses is scarce. Therefore, this paper analyzes the error factors of statistical line losses accuracy, including measurement device error and difference of device configuration, and puts forward synthesis method of gateway energy measurement error on the basis of analyzing metering error on the actual operating conditions. Besides, energy upload protocol would have a great influence on statistical line loss when the time interval is small. Combined parameters of the line with the actual load verification data of metering device, it is verified that the existing gateway metering devices configuration scheme would have a great impact on the accuracy of statistical line loss under the actual operating conditions by simulation. This work is supported by National Key Research and Development Program of China (No. 2016YFA0401703).