Stability study of the interconnection of electricity networks of WAPP countries - case of control zone II (Ghana, Togo & Benin)

Abstract

In the context of the ECOWAS power transmission networks interconnection project led by WESTAFRICAN POWER POOL (WAPP), a master plan was drawn up in 2004 and updated in 2011. This plan recommended the partitioning of the ECOWAS area into five (05) control zones to ensure effective control of the stability parameters of the interconnected network. This paper is a study of the functioning and stability of the power network of control Zone 2 composed of Benin, Togo and Ghana. After an inventory of the production and transmission infrastructures and the survey of the load curves of each country, the network of the control zone 2 is modeled with the CYME software version 8.1.6 and analyzed with the Newton-Raphson algorithm. With the voltage plans taken from steady state simulation and transient stability tests, technical solutions have been proposed and implemented to improve the zone 2 power network stability