AC-DC hybrid microgrid can give full play to the complementary advantages of AC microgrid and DC microgrid, whose carbon trading mechanism conforms the concept of low-carbon economy. According to the characteristics of AC-DC hybrid microgrid, this paper constructs the optimization model of AC-DC hybrid microgrid with considering the cost of carbon emission. By comparing the different weights of the economic indicator and carbon emission indicator, this paper studies the influence of carbon trading mechanism on the optimal operation of hybrid microgrid. On this basis, this paper introduces a loss model of the bidirectional converter and studies
the influence of the bidirectional converter loss on the economic dispatch of hybrid microgrid. The simulation result shows that the equal weight dispatch
strategy has better economic and environmental protection, and the application of the bidirectional converters loss model changes the controllable micro source
output in AC area and DC area, which is more applicable for the real needs.