Multiagent-based Distributed Control for Operation Cost Minimization of Droop Controlled DC Microgrid Using Incremental Cost Consensus

摘要

In this paper, a multiagent based distributedcontrol is proposed for DC microgrid to minimize the operationcost. The power of each distributed generator (DG) is dispatchedin a distributed manner in a multiagent system by means ofvoltage scheduling. Every DG unit is taken as an agent, and theyshare the load corresponding to the operation cost of all the unitsin the system with only communication with direct neighborsthrough incremental cost consensus. The power regulationaccording to the power reference generated by consensus isimplemented through voltage scheduling in local primarycontrollers. Simulation verification shows that total operationcost of the DC microgrid is successfully reduced though theproposed method.