Now a days, wind and solar energy are most commonly used as renewable energy sources (RES). These sources highly depend on environment and geographical conditions of a particular location. Main drawback of RES is randomness in power production due to their inherent uncertainty nature. Hence, energy management is difficult task for these sources. Wind, photovoltaic (PV) and sodium nickel chloride (SNC) battery based hybrid power system (HPS) is used as study system in this paper. Two battery models, i.e., internal resistance (IR) and two time constant (TTC) model are modeled. System operation is carried in two stages for these two battery model separately, in first stage voltage of system is maintained at constant value using voltage source converter (VSC) after that in second stage dynamic programming (DP) is applied to system to get maximum revenue from the system.