Reliability calculation method of power distribution system considering hierarchical decentralized control of demand-side resources

A reliability calculation method of a power distribution system considering hierarchical decentralized control of demand-side resources, comprising the following steps:

• Step 1, establishing a multi-state model of wind turbine output and a two-state model of wind turbine failure, which respectively consider randomness of wind speed and uncertainty of wind turbine failure;
• Step 2, establishing a multi-state reliability model of distributed wind power system comprising a plurality of wind turbines by combining the multi-state model of wind turbine output and the two-state model of wind turbine failure established in step 1;
• Step 3, establishing a reliability model of information communication system considering hierarchical decentralized control of random failures and information delays;
• Step 4, establishing a reliability model of demand-side resources considering hierarchical decentralized control based on the reliability model of information communication system considering hierarchical decentralized control of random failures and information delays established in step 3;
• Step 5, calculating a value of reliability of a power distribution system considering hierarchical decentralized control of demand-side loads according to the multi-state reliability model of distributed wind power system comprising the plurality of wind turbines established in step 2 and the reliability model of demand-side resources considering hierarchical decentralized control established in step 4, to acquire an analysis result of the reliability of the power distribution system.