Feasibility Study of Application of Superconductor Techniques for Rotating Electrical Generators

摘要

A preliminary design study, with some supporting experiments, has been performed of a 1,000 kva rotating electrical generator for space application. The design study included cooling equipment to maintain the device in the vicinity of 10K, plus ancillary drives and heat rejection components. Considerable study was devoted to possible machine arrangements, mechanical features of the generator, cooling equipment heat loads, and cooling equipment design. System reliability and startup procedure were also considered. The problem of alternating field losses in superconductors was given considerable attention and estimates of these losses were made. The weight of the generator-cooling equipment package was found to be about 1/2 pound per kw. Appreciable additional weight saving results from an overall package efficiency in the 98% range. Some reduction in reliability appears inevitable due to inclusion of the cooling equipment. (Author)