The uncertainties of outputs of distributed generators (DGs) put higher requirements on the reliability of distribution networks. Meanwhile, with the widely integrated of DGs, AC/DC hybrid distibution network is becoming a general trend. In this paper, an evaluation analysis method is proposed to evaluate the reliability of AC/DC hybrid distribution networks with high integration of DGs. The optimal load shedding model with VSCs is presented. By non-sequential Monte Carlo simulation, a framework of evaluating AC/DC hybrid distribution networks is presented. Case studies are performed on the modified IEEE 123-node network. Finally, by comparing with a modiefied AC distribution network, the reliability improvement brought by DC network is verified.
Keywords reliability evaluation, AC/DC hybrid distribution networks, distributed generators, optimal load shedding model