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Robust Nonlinear Mathematical Transmission Expansion Planning based on German Electricity Market Simulation

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Requirements on electrical energy transmission and the work of system operators are changing due to the shift from centralized towards decentralized generation. This leads to an increased need of transport capacities in grids. In this paper, a robust method is presented to solve the resulting transmission expansion planning (TEP) problem using a nonlinear mathematical optimization. In terms of TEP optimization successive measures are considered in the used mathematical formulation such as grid optimization, grid enhancement and grid extension. The mathematical optimization is based on a DC power flow formulation using unreduced grid models. The concept of the TEP model design and the implementation of different measures are given in detail in the paper. The applicability of the developed approach is shown by the application to a model of the German transmission grid based on a German electricity market simulation for a yearly simulation calculating an expansion demand of 3047 GWkm.

Author(s):

David Sebastian Stock    
Fraunhofer Institute for Energy Economics and Energy System Technology
Germany

Yannic Harms    
Fraunhofer Institute for Energy Economics and Energy System Technology
Germany

Denis Mende    
Fraunhofer Institute for Energy Economics and Energy System Technology
Germany

Lutz Hofmann    
Leibniz Universität Hannover
Germany

 

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