This paper analyzes the principle of hybrid simulation，and introduces an experiment simulation environment which is composed of the photovoltaic array，storage batteries and the real-time digital simulation（RTDS）system.The aim of this environment is to study the changes in grid stability characteristics after the access of photovoltaic（PV）power station to the grid by transmitting the real attribute information of PV power station to RTDS.The interface between real equipment and RTDS in the hybrid simulation system is explained in detail.The process of hybrid simulation experiment is proposed.The solution is verified by experimental results.