–This paper proposes a fuzzy based procedure to solve the optimal reactive power dispatch (ORPD) problem. Comparison studies between two linear fuzzy models namely triangular and trapezoidal fuzzy models, to solve ORPD problem is carried out for control and dependent system constraints. The proposed fuzzy ORPD model handles fuzzy objectives and constraints to obtain the optimal operational sett...

Reliability investigation has always been one of the most important issues in power systems planning. The outages rate in power system reflects the fact that more attentions should be paid on reliability indices to supply consumers with uninterrupted power. Using reliability indices in economic dispatch problem may lead to the system load demand with high reliability and low probability of powe...

The exponential growth of unpredictable renewable power production sources in the grid results difficult-to-regulate reactive power. ultimate goal optimal dispatch (ORPD) is to find voltage level all generators, transformer tap ratio, and MVAR injection shunt VAR compensators (SVC). More realistically, ORPD problem a nonlinear multi-objective optimization problem. Therefore, this paper, formula...

In this paper an optimal energy and reactive power dispatch problem is solved by using the ant lion optimization (ALO) algorithm considering total cost minimization social welfare maximization (SWM) objectives. Two different market models are proposed in work, i.e., conventional/sequential clearing proposed/simultaneous clearing. each model, two objectives, SWM considered. The conventional (SW)...