Abstract: The construction of new power system is an important support for promoting the energy transformation and realizing the emission peak and carbon neutralization, in which the microgrid technology is an important link. How to improve the level of renewable energy consumption and deal with the uncertainty of new energy is of great significance in a microgrid. The article underlines the active microgrid energy management in a microgrid. Firstly, from the perspective of the potential game, the model of the renewable energy, the generalized energy storage and the diesel engine unit is established; Then the generalized energy storage model is constructed to make the flexible load with "virtual energy storage" operate with the energy storage unit in coordination, making a detailed scheduling plan of the flexible load under the incentive of time-sharing price and participating in the optimization of dispatching; At the same time, aiming at the volatility and intermittence of renewable energy, the Conditional Value at Risk(CVaR) model is introduced to quantify the risk cost caused by the uncertainty of the output power of the renewable energy so as to pursue the balance between the risks and the benefits. Simulation results show that the proposed method ensures the autonomy and self-interest of the microgrid individuals, and effectively improves the flexible load's power consumption curve. The CVaR model proposed has a good robustness, which provides a reference for the balance between the benefits and risks of the renewable energy operators.