Applications and Validation of WECC Model for Type 4 Wind Generator Controller for the Colombian Power System

Abstract

The Colombian power system will have an important challenge in the upcoming years because of the large amount of unconventional renewable energies that are going to be connected to it. This power system typically has been hydro based with no presence of large-scale wind or photovoltaic generation. Around 1249 MW of wind and 1086 MW of photovoltaic large scale generation are expected which represents 10% of the peak demand. For this reason, the Colombian power system operator must evaluate the impact of integrating these technologies into the grid. In order to achieve this goal, the behavior of these unconventional renewable generators was simulated using the WECC (Western Electricity Coordinating Council) control model for Type 4 Wind Generators which was implemented in the PowerFactory software. This paper shows the results of several tests carried out to validate the referred model and the analysis performed with it to assess the impact of these sources in the Colombian power system’s frequency and voltage. Using these results the technical requirements were defined to maintain the security and reliability conditions of the power system.