Allocation of UPFC in North West grid of Iran to increase power system security

摘要

The exploitation of Flexible Alternating-Current Transmission Systems (FACTS) based on power semiconductor devices is growing regularly in power systems to solve issues caused by electrical energy generation, transmission and consumption. Implementation of FACTS is a highly complex problem where solution often involves comprehensive study on power system diagnosis, possible solutions, the purpose of installation and efficiency of FACTS devices on improving network parameters. In this paper the placement of Unified Power Flow Controller (UPFC) in Azerbaijan transmission network of year 2016 has been studied. The allocation method is based on sensitivity analysis, to increase the load-ability, to improve the voltage profile and to decrease the steady state transmission losses. It is proposed to use losses index further than common indexes to improve sensitivity analysis. The best installation locations have been presented in this paper.