Power and Profit Distribution of Multiple Microgrids Considering Power Congestion of Contact Lines
Under the penetration of high proportion of renewable energy,the problem of power congestion in multi-microgrid contact line is becoming more and more prominent.A comprehensive evaluation method based on the scheduling and operation results of the multi-microgrid system was proposed,aiming at addressing this problem,which can enable the reasonable allocation of congestion pow-er and profit.Firstly,the structure and scheduling strategy of the hybrid multi-microgrid system were described,and the evaluation in-dexes of economy,environmental protection,and reliability of each sub-microgrid scheduling were formulated.Secondly,to solve the problem of contact line power obstruction,the hierarchical analysis-entropy weight-game theory combination weight method was used to weight the indicators of each sub-microgrid in the energy management system of multi-microgrid,and then TOPSIS(technique for order preference by similarity to ideal solution)method was combined to carry out the comprehensive evaluation of each sub-microgrid.Final-ly,the results of the comprehensive evaluation was used for the distribution of contact line congestion power and profit.The results show that the evaluation indexes are reasonable,and the proposed method can improve the profit of the multi-microgrids by 5.18％,and at the same time reasonably distribute the congestion power and profit of the multi-microgrid contact lines.
power congestiongame theory combinatorial assignmentTOPSIS(technique for order preference by similarity to Ideal solution)comprehensive evaluationprofit distribution
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