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Big droop coefficients tend to reduce stability of micro-grid, while small droop coefficients result in slow responding of inverter. In order to overcome the disadvantage, here a kind of droop control strategy based on nonlinear droop characteristic similar to that of magnetic hysteresis is proposed, through real-time changing droop gain appropriately to improve load power distribution accuracy, to...
Mathematical model of economic operation in microgrid (MG) is built, in which using fuel costs of micro-resources, maintenance and operation costs, environmental governance costs, and electric charge interactive with main grid as multiple-objective function, comprehensively considering technical performance of the micro-resources, locally available energy resources and load demand. Improved genetic...
In order to solve the problem of microgrid(MG) economic operation optimization, model is built respectively for Na/S battery(NA/S), micro turbine(MT), fuel cell(FC), wind driven generator(WT), photovoltaic cell(PV), and interactive power exchanged with main grid, which moves to an emphasis on cogeneration and unit commitment. Multiple objective function including fuel cost of micro-source, operation...
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