HYBRID WIND PV/DIESEL HYBRID POWER-SYSTEMS MODELING AND SOUTH-AMERICAN APPLICATIONS/

This paper presents an applications case study and comparison of perfo rmance results between two computational models for simulating the per formance of hybrid power systems. The first model, HYBRID2, was develo ped at the University of Massachusetts under National Renewable Energy Laboratory (NREL) sponsorship. The second model, SOMES, was developed at Utrecht University in the Netherlands. Both models have been desig ned to predict the technical and economical (life cycle cost) performa nce of hybrid power plants that typically might be comprised of renewa ble energy sources, a battery bank, and a diesel generator. A South Am erican (Brazil) based hybrid power system used to power a remote telec ommunications system was used for the applications case study. A final system configuration be used as a basis for model prediction comparis on was established as a result of HYBRID2 parametric evaluation. Both codes yielded similar performance results, and this work points out th at the predicted performance discrepancies are due basically to differ ent subcomponent models and differences in control strategy. The gener alized nature of this work is intended to be of interest to engineers involved with the design and analysis of hybrid power systems.