Reliability and Resource Adequacy Analysis
Coral is a composite reliability analysis and resource adequacy assessment tool that evaluates the composite (generation-transmission) supply reliability of large-scale systems. It is highly focused on renewable sources and storage devices. Coral was designed to run standalone, considering (or not) a given operation planning or as a slave subprocess within an expansion planning process.
State of the art methodology
Efficient implementation of the reliability evaluation algorithms with realistic representation of small storage devices
Components representation
Stochastic models, extensive set of power system devices and flexible custom components
Hourly simulation
Hourly discretization to ensure the correct representation of variables with fast dynamics, such as renewable sources
Time Series Lab integration
Build hourly scenarios for renewable sources, manipulate time-series and build multi-state Markov models
SDDP & Optgen Integration
Evaluate the reliability of operation policies and include reliability criteria in the expansion planning process
Scalability analysis of very large systems
Runs efficiently in parallel computing environments and is available in PSR Cloud
Coral performs system adequacy assessment that is related to the existence of sufficient facilities within the system to satisfy the consumer load demand not considering aspects related to system security assessment, that is the ability of the system to respond to disturbances, including the minor and major disturbances resulting in dynamic, transient or voltage instability of power system.
With Coral, it is possible to evaluate the reliability and resource adequacy of SDDP's operation policies and to consider their associated hydrology uncertainty. Coral uses not only SDDP's input databases but also its output scenarios, when required, in order to assess the reliability of a given hydrothermal system policy. Many policy variable decisions can be considered, such as reservoir levels, thermal plant unit commitment, battery storage levels, etc.
Coral also allows to include reliability criteria in OptGen's expansion planning process. The integration between Optgen and Coral allows minimum security constraints to be included in the expansion problem as a planning criterion. Therefore, it is possible to assess the benefit of each project both in terms of reduction of the operative cost as well as the increase in the overall system reliability.
Our team provides not only support services on software, but also an interactive knowledge base platform and the possibility to organize training sessions.