Comparing TCSC and SVC Optimal Locating to Control the Network Reactive Power and to Improve Power Losses

摘要

Generally, the problem of reactive power control can be examined in two perspectives: load compensation and voltage support. So, in order to reduce the system power loss or voltage deviation as a goal, by calculating the optimal settings of the reactive power output and the terminal voltage of the power plants, the transformer tap and the output settings of other compensating devices, such as capacitor banks and synchronous generators, are used. In this regard, FACTS flexible control devices are considered as additional controllers to apply the parameters of the transmission system, and we will see its effect on reducing transmission losses in the power system. Of the available static models of compensators, two types of FACTS devices, including the reactive power parallel compensator (SVC) and the thyristor-controlled series compensator capacitor (TCSC), are included in the problem solving formula. In this paper, using optimum locating of these devices in the power network by the genetic algorithm and with the control of reactive power, it is possible to reduce the amount of losses and increase the energy transfer capacity in the lines and finally, by simulating the IEEE 6-chin test network and installing the FACTS devices, this will be confirmed.