Power Supply Reliability Evaluation Method for DC Distribution Network with Power Energy Router

In this paper, a power supply reliability evaluation method for DC distribution network with power energy router is proposed. Firstly, the indexes of power supply reliability evaluation for DC distribution system are introduced. Then, combined with the actual demand of the power supply reliability evaluation calculation, the equivalent simplified model of the power energy router for power supply reliability evaluation is built. In order to analyze the power supply reliability of the system, time-series model of each component in the system is established. State sequences of each element in the system are generated by using sequential Monte Carlo method. The power supply reliability result of the whole system can be obtained based on the FMEA based interruption duration analysis of each load, which takes load priority into consideration. Finally, the effectiveness of the proposed method is verified by MATLAB simulation case study.