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ePSR
Corporate system for the management of energy studies
Overview
ePSR is a corporative computational environment designed to facilitate the development of collaborative energy studies. Founded on a comprehensive common data base, the ePSR architecture integrates PSR energy applications and is ready to interface with third party products.
ePSR is a workbench that includes both information and models needed for energy planning activities within the relational data base. The resources are available to the users through a graphical user interface which works under a security and authorization control mechanism. This control mechanism enables the configuration of the features which will be available for the user, depending on his/her profile. Developed using the most advanced information technologies, ePSR offers many corporate wide features that enhance the organization and productivity of the studies. These can be as diverse as the scheduling for the next hour or an energy planning study with a horizon of 20 years.
General Framework Architecture
ePSR is built under an architecture comprising of a graphical user interface, business rules, data access rules, database access functions, database management system, stored data, energy applications models, and data format converters.
Information Resources
Information in ePSR’s database is organized into five major categories.
Power System Components - describe the generation and transmission system components. Some variables are constant while others can be expressed in a time-varying basis. The components are versioned, which means that even after being updated, their previous state may be recovered at any time from the database. This is useful for auditing, and retroactive simulations and studies.
Configurations - represent different organizations of the power system. Configurations are defined by clustering power system components into interrelated sets.
Time series - represent historical data and forecast scenarios.
Constraints - operational rules which constrain the dispatch.
Study Management - management of studies stored in the database. A study is created by selecting information from available configurations, historical data and forecasts scenarios from the database. Additional application-specific parameters are required to run the desired model. When creating a study, planners benefit from all information available in ePSR database, even when defined by other users.
Energy Models
ePSR integrates a set of models for (i) hydrologic inflows forecasting, (ii) long and mid term planning, (iii) short term scheduling and (iv) market price computation for ex-ante and ex-post situations. ePSR can also integrate to real-time SCADA systems.
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