Grid-connected/island optimal operation of PV-diesel-battery microgrid with plug-in electric vehicles

This paper focuses on the environmental and economic optimal operation of microgrid in grid-connected and island modes. Considering the operation constrains of microgrid, the constrained multi-objective optimization problem (CMOP) is built with the fuel cost, depreciation expense and emission cost of distributed generators as optimization objectives. The comprehensive learning particle swarm optimization (CLPSO) is applied for the solutions of outputs from distributed generators. An AC/DC hybrid microgrid including photovoltaic, diesel generator, lithium battery, electric vehicle charging points and load is researched. Optimization results demonstrate the effectiveness of the proposed models and algorithm.