Integrated Decision Making of Distribution Network Planning Schemes Based on EW-GRA Algorithm Combined with P-OWA Operator

To solve the problem of strong subjectivity and less objectivity of decision-making in distribution network planning scheme caused by qualitative evaluation indices, a model was proposed which combines parabolic ordered weighted average operator (P-OWA) with entropy weight and grey relational analysis (EW-GRA). Firstly, the expert scoring of qualitative indices were reasonably assembled by a P-OWA operator. The whole indices using an entropy weight method. The correlation matrix was obtained according to a grey relation analysis. The grey correlation degree was obtained by weighting. Finally, the optimal scheme was obtained according to the result of ranking. By applying this method to an actual case, its effectiveness was verified by comparing with other methods.