Distributed Autonomous Economic Control Strategy for DC Microgrid

Abstract A distributed autonomous economic control strategy is proposed to realize the operation of DC microgrid in islanded state. The first introduces incremental cost primary control, but due influence line impedance, it not possible precisely achieve consensus at each unit, and generates a steady-state error. To overcome this problem, secondary based on dynamic algorithm designed basis which makes generator operate under equal cost. two layers strategies cooperate work together hierarchical-distributed microgrid. Finally, simulation model constructed, verifies effectiveness method.