变电站厂界噪声测量结果不确定度评定方法

变电站厂界噪声测量是电力设施环境因子的重要监测项目之一,测量不确定度是定量说明测量结果质量的重要参数。针对变电站厂界噪声测量不确定度评定的问题,首先,给出变电站厂界噪声测量方法,分析不确定度来源;其次,建立变电站厂界噪声等效连续A声级模型和噪声标准测量不确定度的评定模型,包括A类、B类评定模型;最后,结合实际算例给出完整测量不确定度评定计算过程,为工程技术人员提供企业厂界噪声测量不确定度评定的可操作方法。

Uncertainty evaluation method of measurement results for boundary noise around the substation

Substation boundary noise measurement is one of the important monitoring items of environmental factors of power facilities.Measurement uncertainty is an important parameter to quantitatively describe the quality of measurement results.Aiming at the problem of uncertainty evaluation of substation boundary noise measurement,firstly,the measurement method of substation boundary noise is given,and the source of uncertainty is analyzed.Secondly,the equivalent continuous A sound level model of substation boundary noise and the evaluation model of noise standard measurement uncertainty are established,including A and B evaluation models.Finally,combined with the actual example,the complete calculation process of measurement uncertainty evaluation is given,which provides an operable method for engineering and technical personnel to evaluate the uncertainty of factory boundary noise measurement in industrial enterprises.