Abstract
The Divertor Tokamak Test (DTT) facility is expected to provide a significant contribution to nuclear fusion research, in particular to DEMO, the first reactor able to deliver a net energy to the external grid. The main scope of DTT is the development of techniques and components to manage the power exhaust coming from the fusion processes. DTT is a complete tokamak including several power supply systems. The poloidal field and central solenoid power supplies are especially challenging, due to the very high currents and the necessity to continuously adjust the magnetic field. Moreover, the systems must be able to rapidly discharge all the superconducting coils. This paper describes the power supply topologies, operations, impacts on the electrical distribution system, design specifications and layout. The main open issues in the design of this kind of systems in nuclear fusion applications are presented together with the features of the proposed solutions. The analysis and the results will be useful not only for DTT but also for ITER, DEMO and other research projects.
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