Efficient holomorphic based approach for unit commitment problem

Due to increasing energy demand and introduction of competition in the electricity sectors, the Unit Commitment (UC) has become a challenging task in the power system. In the operational planning of the modern power system UC plays an important role and saves significant amount of the cost per year. In this paper, optimal loading of the generating units is obtained using particle swarm optimization along with Holomorphic Embedded Load Flow (HELF) technique, under consideration of equality and inequality constraints of different units and power flow. IEEE 30-bus system is considered to test the effectiveness of the proposed approach. The simulation results thus obtained have been compared with the results obtained from NRLF load flow.