Application of ETAP in distributed power supply and micro-grid interconnection

Abstract

With the development of the global economy, the demand for energy is getting higher and higher and the advantages of the distributed power generation technology and micro-grid are more and more prominent. The author refers to the model of wind, light and micro-grid in a certain island in China, and uses ETAP to design the micro-grid model. Combined with the models in ETAP (wind turbine model, photovoltaic and photovoltaic inverter model, energy storage model, gas generator generation model, user-side load, industrial system load, cable transmission line model, transformer model, etc.), simulation analyses of micro-grid system under different operating conditions are carried out, including transient analysis of the micro-grid in grid-connected operation and transient analysis of the micro-grid system under external power network fault and recovery operation in grid-connected state. The simulation results have practical significance for real engineering.