Energy saving modification planning for distribution systems

Under the hierarchical partition management mode of regional distribution systems, the multi measures combined with energy saving modification (ESM) investment planning model which is constrained by the total investment are developed. In this model, the modification investment amount of each measure is set as a variable, and the core parameters, such as gray connection weights, indicator inferior degrees, as well as energy-saving efficiency of transformation, are obtained by gray relational analysis, sampling statistics and contrasts of sample transformation. Considering investment constraints and weight coefficients, the problem of the whole network energy saving investment allocation under the circumstance of limited funds is solved. The example shows that the proposed method is helpful for understanding the loss reduction space and modification demand of distribution systems, and improves the efficiency of investment for ESM.