Estimation of Harmonics in Partly Monitored Residential Distribution Networks With Unknown Parameters and Topology

The generalized adoption of power-electronic-based loads in residential networks is leading to increasing concern about harmonic distortion levels. At the same time, distribution systems are insufficiently monitored provide a reliable analysis limits compliance at point common coupling customers. To address this problem, paper proposes practical method estimate voltage levels real time all connection points consumers. proposed methodology assumes unknown network parameters and topology according limited data availability which usual low networks. estimation uses information gathered from conventional smart meters typically installed (which register fundamental power) reduced number power quality monitors. A penetration below 10% has proved accurate estimations whole network. also optimally locate these Validation performed two different European test with 55 buses 471 obtaining satisfactory results. method’s robustness affecting accuracy analyzed article.