Operation simulation and analysis

The development of a smart distribution system needs the support of more specialized simulation and analysis methods [1, 2]. For component modelling, flexible approaches should be adopted in response to the emerging loads, distributed generators (DGs) and other new devices. Meanwhile, given that there can be more smart terminals with new control functions, the mathematical models of different controllers need to be established. For simulation and analysis, DGs have a large impact on the existing power flow programs and will bring a series of challenges to short-circuit current calculation, reliability analysis and so on. Besides that, considering the stochastic fluctuation of DGs, simulation methods not only need to analyse the situation for one certain time point, but also that for a series of time points to show the operation state of a smart distribution system.