Abstract

A description is given of the control system for the MICOM 8000-kw plasma facility. This includes a set of six 65-kw, 3-phase, phase-controlled thyristor amplifiers which, together with control and digital multiplexing components, regulate the field currents of the six power generators in the plasma facility. Problems encountered in the design of the control system were related to the establishment of stability, accuracy (2%) and speed of response (system time constant «0.13 sec) in the facility. Sufficient details are given to permit a working understanding of the system's structure and design concepts.

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