Demand response(DR)is the important controllable resource of new energy power system in the future. With the increasing of penetration rate of renewable distributed energy

DR resources will play an increasingly important role in ensuring the reliability of regional energy systems or distributed generation systems. Based on the improved regret matching mechanism

this paper develops a dynamic sequential model of DR considering the behavior of users. Then

the assessment framework for the influence of DR on the supply adequacy of distributed generation system is proposed using the sequential Monte Carlo method. Finally

the influence of DR on the supply adequacy of distributed generation system is analyzed through the test case. Based on the simulation

it is quantitatively explained that the original load characteristics and behavior choice of users are both the important factors influencing the reliability benefit of DR.