Evaluation of investment projects on distribution network based on fuzzy algorithms

Construction or renovation of distribution network plays an important role in the developing of smart grid. It is necessary to evaluate the investment projects in order to promote scientific development and management of distribution network in smart grid. In this paper, we propose a lifecycle evaluation scheme for distribution network projects, which includes three steps: previous evaluation, mid-term evaluation, and post evaluation of the investment projects. The previous evaluation is carried out based on the type-2 fuzzy algorithm to analyze the feasibility of the proposed investment projects. The mid-term evaluation aims to monitor and assess the execution process of the project by comparing the designed and real statutes of the executing project. The post evaluation can be implemented with a specific or comprehensive traditional project evaluation methods according to different types of distribution network projects. Finally, a specific case study verifies the effectiveness of our proposed evaluation scheme.