With the development of Energy Internet and the deepening of energy interaction

the multi-energy coupling system makes higher demands of the energy supply reliability. Therefore

to quantify the coupling logic relationship among different energy sources

the comprehensive reliability evaluation method is urgent to be studied. Aiming at the problem that the traditional reliability evaluation method is difficult to effectively evaluate the energy supply reliability of the multi-energy coupling system

the multi-energy microgrid is taken as the research object firstly. The physical model of typical microgrid is constructed based on the energy hub model. Secondly

the state model of equipment components and the evaluation index of the reliability of multi-energy microgrid are established. The operation mechanism and the time sequence models of multi-energy microgrid are analyzed. The evaluation model of two kinds of typical operating mode which are grid-connected and electric-isolated are established by combining the Monte Carlo simulation with the failure mode and effect analysis method

respectively. The assessment process is also put forward. Finally

a practical example is given to evaluate the annual reliability indices of multi-energy microgrid and the reliability of the pre-arranged outage in the typical period of the typical scenario

and the availability and practicability of the proposed method are verified.