Research on Comprehensive Evaluation Methods for Residential Area Power Quality Assessment in the Context of Building-integrated Photovoltaics

Residential group rooftop photovoltaics are an important component in the current context of distributed photovoltaic integration, and the large-scale integration of distributed non-grid assets of photovoltaics will inevitably impact the power quality of the distribution network. In order to reasonably assess the power quality issues in residential areas caused by the integration of intelligent distribution networks with distributed energy sources, this paper proposes a comprehensive evaluation method for residential area power quality based on a combined weighting method using ranking learning. Firstly, based on the logical relationships in the Pressure-State-Response (PSR) model, combined with China's national standards and the application background of power quality assessment, a comprehensive evaluation system for steady-state power quality is established. Secondly, considering the correlation and differences between various indicators of the objects to be evaluated, the most reasonable weights for the indicators are sought using the combined weighting method based on AHP- EWM-TOPSIS. Finally, a case study is carried out, and the results show that the comprehensive assessment method proposed is effective and feasible.