Abstract
The power systems for the Tokamak Physics Experiment (TPX) supply the toroidal field (TF), poloidal field (PF), field error correction (FEC), and fast vertical position control (FVPC) coil systems, the neutral beam (NB), ion cyclotron (IC), lower hybrid (LH) and electron cyclotron (EC) heating and current drive systems, and all balance of plant loads. Existing equipment from the Tokamak Fusion Test Reactor (TFTR), including the motor-generator (MG) sets and the rectifiers, can be adapted for the supply of the TPX PF systems. A new TF power supply is required. A new substation is required for the heating and current drive systems (NB, IC, LH, and EC). The baseline TPX load can be taken directly from the grid without special provision, whereas if all upgrade options are undertaken, a modest amount of reactive compensation will be required. This paper describes the conceptual design of the power systems, with emphasis on the AC, TF, and PF systems, and the quench protection of the superconducting coils.
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