Highlights of 2015
Highlights of 2015
Highlights of 2015
Analysis of Congestion in the North-South Interconnection
The Brazilian electric power system is undergoing a major paradigm change in its electric power matrix, with the increasing share evolution of intermittent and inflexible renewable sources such as the run of river power plants in the Amazonian Region, wind plants and in the near future, the solar plants, in addition to the gradual loss of regulating capacity.
In the years to come, due to thehigh concentration of inflexible offer in the Northern and Northeastern Regions, mainlyduring the BIPS’s rainy season, transmission constraints ofinterconnections may prevent the of energy surplustransfer from those regions to the Southeastern / Midwestern and Southern Regions, required for system optimization.
In the 2015/2019 Energy Operation Plan (PEN 2015) the degree of congestion of the interconnection between the Northern / Northeastern and Southeastern / Midwestern Regions was assessed, pointing out the need to assess the feasibility of reinforcements in the exchange capacity between these systems. This assessment supported the elaboration of an Article awarded with an honorable mention at the XXIII SNPTEE.
Validation and Implementation of the Equivalent Power Reservoirs – REEMethodology
The strategic model NEWAVE, until its computer program20thversion, did not allow the explicit representation of basins with different hydrological behavior in the same electric power subsystem, since only one equivalent energy reservoir was associated for each subsystem.
In other to obtain a better representation of the generation system, an extension of the traditional approach was implemented, in which it is allowed for a subsystem include several river basins with particular hydrological behaviors. Therefore, the representation of current BIPS subsystems is maintained, so that each one can have several Equivalent Power Reservoirs (REE).
When representing the BIPS topology with a larger number of REEs, it is possible to consider in more detail the physical constraints such as turbiningand storage capabilities, in addition to explaining the spatial distribution of a same system REE’s inflows, and enable that the hydrological behavior is represented more accurately.
Supply during the 2016 Olympic Games
As coordinator of the 2016 Olympic Games Task Force, ONS conducted in 2015 studies and analyzes to identify the necessary actions to ensure the supply of electric power to the host city of Rio de Janeiro and addition soccer games host cities, taking into accountdifferentiated securitypatterns, in accordance with CMSE 001/2005 Resolution and the criteria set by the International Olympic Committee - IOC.
These analyzes identified the necessary actions - additional thermal generation, energy constraints and adjustments and / or new Special Protection Systems (SEP) - for Rio de Janeiro and additional soccer games host cities, so that they have their main loads preserved in adverse situations, and to ensure differentiated performance in case of double losses.
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