Power quality trends in energy Australia distribution network
Power quality trends in energy Australia distribution network
复制标题
澳大利亚能源配电网的电能质量趋势
DOI：
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复制
发表时间：
2008
期刊：
影响因子：
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通讯作者：
S. McHardy
中科院分区：
文献类型：
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作者：
H. Herath;S. McHardy
配电公司需要意识到其网络中电能质量(PQ)扰动的总体变化，监管机构越来越多地要求它们对其网络中选定的部分进行ldQuoquy质量控制调查，以确定PQ水平和总体遵守国家标准的情况。因此，公用事业公司正在开发自己的PQ监测项目，以帮助将PQ水平保持在标准规定的限度内。长期的电能质量监测和分析是为了帮助公用事业公司识别有问题的电能质量扰动趋势，并在规划改进时采取预防措施。本文提出了一种分析PQ监测数据的方法，以便对公用事业网络中PQ扰动趋势提供有用的见解。澳大利亚能源公司开展的PQ监测活动的实际现场数据已被用来建立该方法，分析表明，在网络类型方面具有相似类别的站点对电压暂降和谐波趋势具有很强的正线性关系。
Power distribution utilities need to be aware of the general variation of power quality (PQ) disturbances across their network, where the regulators are increasingly asking them to conduct ldquoquality controlrdquo surveys on the selected parts of their network to establish the level of PQ and overall compliance with national standards. As a result utilities are developing their own PQ monitoring projects to help maintain the PQ levels within the limits specified by standards. The long term PQ monitoring and analysis is to help utilities to identify problematic PQ disturbance trends and take preventative measures in planning improvement. This paper suggests a methodology for analysing PQ monitoring data to give useful insights on PQ disturbance trends in utility networks. Actual field data from a PQ monitoring campaign conducted by Energy Australia has been used to establish the method and the analysis has shown that the sites having similar categories in terms of network type have a strong positive linear relationship for voltage sag and harmonic trends.