Optimal integration of microgrid for distribution network

摘要

The proper integration of Microgrid determines the safe, efficient and economic operation of distribution network. From the perspective of the benefits of distribution network, this article illustrates the detailed process of the optimal integration of Microgrid. Firstly, select the candidate set taking consideration of practical engineering aspects. In order to reduce the forecast error, the probabilistic power fluctuation model of Microgrid is derived considering the mutual behavior of distribution generation and load. Then establishes the evaluation system with the comprehensive index of power loss rate, voltage deviation and static voltage stability. Fuzzy Analytic Hierarchy Process (FAHP) is adopted to optimize relative weights of evaluation indicators and the decision- making model of Microgrid integration is established. In order to test the validity of the proposed theory, this article simulates integrated impact under IEEE 33-bus system. The results show the efficiency and suitability of the proposed strategy.