Considering the influence of such uncertainty factors as distributed power output and load fluctuation on the operation stability and economic performance of micro-grid

the optimization of active power and reactive power is proposed in the optimal regulation of micro-grid

so to meet the safety and reliability requirement. The interval number is introduced to express the optimal regulation objective function and constraints condition which contain uncertainty factor

and the optimal scheduling model of dynamic multiple objective is set up with generation cost

voltage deviation and grid loss of micro-grid as optimal objective. At the same time

a multiple attribute decision NSGA-Ⅱ algorithm based on interval number is proposed to solve the linear multiple objective function in the model

and the Pareto optimal solution of the dynamic optimal scheduling is obtained during the whole scheduling cycle. Finally

the simulation system of 17 nodes is used for simulation and calculation. It is shown by the calculation result that this method can coordinate and optimize the economic efficiency

safety and reliability in the optimal regulation problem and

at the same time

can get superior operation cost of micro-grid compared to a single active or reactive optimal scheduling.