Unit commitment problem solution in the presence of solar and wind power integration by an improved priority list method

Unit Commitment (UC) plays a key role in power system operation and control. With the integration of the Renewable Energy Sources (RES) into the power systems, many researchers are still investigating their effects in the UC. This paper presents an improved priority list method for solving the UC with the integration of RES, solar and wind. Coherent operation of RES with the conventional thermal generator is a big challenge thus generation schedule must satisfy the demand under the system constrain and uncertain RES power output. The improved priority list solves the UC problem under the integration of RES power generation. Numerical results are stated and discussed for the effect of solar and wind power integration into the power system. The results demonstrate a significant reduction in the hourly operation cost and start-up cost as well.