02-09-2017, 12:29 PM
The RHFC is a hybrid compensator composed of a phase shift rotary transformer (RPST), a multimodular thyristor switched series capacitor (TSSC), a thyristor switched series multimodulated reactor (TSSR) and a mechanically switched capacitor ( MSC). In this work, a multiobjective optimum power flow (OPF) is applied to optimally locate RHFC to improve the performance of the power system. Diffuse decision making is used in terms of optimal location processing, in accordance with the best compromise between Pareto optimal solutions. Optimal location and OPF model are implemented in the General Algebraic Modeling System (GAMS) software to simultaneously optimize total fuel cost, power loss and system load capacity as objective functions. The simulations are performed in the IEEE 30 bus and 118 bus test systems to determine the optimum parameters and the location of the RHFC. In addition, to highlight the capacity of the RHFC, the results are compared with a Phase Shift Transformer (PST) and a Unified Energy Flow Controller (UPFC) from economic and technical points of view.