ABSTRACT

The development of a smart distribution system needs the support of more specialized simulation and analysis methods. For component modelling, flexible approaches should be adopted in response to the emerging loads, distributed generators (DGs) and other new devices. This chapter introduces the key simulation and analysis methods, including steady-state modelling, power flow analysis, sequential power flow analysis and fault calculation. In distribution networks, shunt capacitor banks are widely used for reactive power compensation. Among DGs, micro gas turbines and some wind turbines are integrated into the grid through two back-to-back AC-DC converters, while PV cells and fuel cells through DC-AC inverters since the electricity they generate is DC. The charging and discharging control of energy storage is an effective way to improve the power distribution of the system.