Analysis of Reserve Generating Capacity Considering the Penetration of Variable Renewable Sources

摘要

Considering that the energy matrix of Honduras has undergone a drastic change during the last years due to the introduction of variable renewable energies, this change leads us to study the impact that is generated in the national interconnected system (SIN), this impact would be mainly influenced by the variability of renewable sources, given the sudden changes in both the increase and decrease of generation. In response to this impact a new methodology is proposed in the management of reserves in the SIN, different from those currently consider in the dispatch of energy. This methodology promotes a ramp reserve which consists in having the availability of rise or fall a quantity of generation in a given time, thus being able to absorb the falls or rises of large generation blocks that occur by any variant in the variable renewable generation (GRV). The calculation of the reserves will be obtained from the historical data of the ramps that occurred due to the GRV. The purpose of this calculation, besides improving the quality of the national interconnected system, is to make a comparison of the costs that would be generated by maintaining an available ramp reserve, with the costs of maintaining the system with the methodologies that it currently has.