Study on reliability assessment of power supply in energy system

Reliability of both power and gas supply is affected by the interdependence between two systems because the coupling between electricity and gas network becomes closer nowadays. It is urgent to research on reliability assessment in electricity-gas coupled energy system, and the reliability of power supply in electricity-gas coupled system is study in this paper. Reliability models of coupled devices are established. Besides, the algorithm and program based on analytical method which has more practical value of engineering are designed. Finally, the Belgian 20-bus gas network and IEEE -33 system are used for a case study. Effectiveness of models and method is verified and tested.