Modeling and simulation of micro-grid including inverter-interfaced distributed resources based on dynamic phasors

The difficulty of the micro-grid dynamic characteristics analysis is exacerbated by the electromagnetic transient process of the converter. In order to analyze the dynamic characteristics of the micro-grid quickly and accurately, a dynamic phasor model of the micro-grid including inverter-interfaced distributed resources is presented. Comparing with the electromagnetic transient model, the simulation results show that in the range of high accuracy, the simulation results of two models are approximate. The experiment results further verified the correctness and validity of the model. Meanwhile the proposed model not only obtains higher accuracy, but also reduces the calculation complexity and saves the simulation time. This model provides a new method for modeling complex micro-grid.