Operation of low-carbon-emission microgrid considering wind power generation and compressed air energy storage

To reduce the carbon emission of microgrid, a concept of low-carbon-emission microgrid is developed in this paper. Compressed air energy storage (CAES) is introduced into the proposed microgrid for its flexibility and high overall efficiency. As the power source of the microgird, uncertainty of wind power generation is well modeled. A max-min operation framework of microgrid considering wind power uncertainty is proposed. Basically, state of charge (SOC) of CAES represents its regulation capability in a period of time. Unlike the fixed initial and final SOC of energy storage system in the other operation model, SOC of CAES in the proposed framework is changed by wind power output and load demand. Outer approximation method is adopted to solve the max-min formulation. Numerical cases show the effectiveness of the proposed operation framework.