摘要： The high penetration of Distributed Energy Resources (DERs) creates the necessity of having mathematic models that can accurately represent the variable and intermittent nature of its resources, which are normally based on renewable energy such as photovoltaic systems. Since the DERs are located near the consumer, at the distribution side of the network, it creates a challenge in the operation and control of the distribution system. This challenge can be addressed by microgrids, which are the new paradigm for defining the operation of the distribution system with high penetration of DERs. This paper presents a photovoltaic simulation model which can analyze the photovoltaic system response to particular weather condition. The model can be applied in a steady-state microgrid energy management system. The model was simulated, and the results were analyzed. Different cases were applied, and the results were high satisfactory in comparison with the ones presented in the literature.