Generation unit commitment in microgrid with renewable generators and CHP

Nowadays, renewable energy play an important role to power system generation, the installation of renewable generators is increasing in distribution systems in the form of microgrid. Microgrid is able to increase efficiency of power generation. The fluctuation of renewable generators in microgrid affects to power quality and reliability in the power system. These problems can be solved by the installation of battery in microgrid. The proposed algorithms consist of correlation between solar irradiation and temperature model. The output power and useful heat can be calculated by steady state model. Generation unit commitment will be covered with combined heat and power (CRP) to increase fuel efficiency. Therefore, an appropriate battery capacity is investigated in this paper. Lead-acid battery is the proposed battery that used in this paper. The proposed algorithm has been tested with IEEE14 buses. Satisfactory results were obtained.