Abstract
The need of robust and optimal control schemes is a key factor for the development of future fusion reactors. This paper has dealt with the state-space modelling of the Ultra-Low Iota Super Elongated Stellarator of the UPV/EHU, using a physical lumped parameter equivalent circuit approach. The model obtained has been validated by means of experimental output data showing an excellent matching with the real system. Besides, it has been designed a MPC scheme that has been successfully implemented both in simulation and experimentally using a real-time control platform.
Highlights
In the last years, it has been a considerable international effort to develop a clean technology based on magnetic confinement fusion energy, as it is the case of the ITER (International Thermonuclear Experimental Reactor) [1,2]
The state-space model obtained has been successfully validated by comparing the results of the model with those of the real system
A Model Predictive Control law has been experimentally implemented over the real-time control system using the proposed state-space model showing an excellent reference trajectory tracking behaviour
Summary
It has been a considerable international effort to develop a clean technology based on magnetic confinement fusion energy, as it is the case of the ITER (International Thermonuclear Experimental Reactor) [1,2]. Stellarators consist basically of a helically symmetric system bent into a torus with a large axisymmetric toroidal field, a moderately sized helical field and a small axisymmetric vertical field, all of them created by electromagnetic coils. In this way, the magnetic confinement in stellarators is fully achieved by the coils, so that no plasma current is needed to confine - ohmic, non-inductive and bootstrap currents may be present-. Some concluding remarks are stated in the last section
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