CRYOGENIC POWER / ENERGY DISTRIBUTION SYSTEM

摘要

An innovative power and energy distribution system for high-rise structures and large buildings is proposed and described. It is based on the integration of two emerging technologies, namely those of High-Temperature Superconductivity (HTS) and the new concept of Cryogenic Power Conversion (CPC) using Low-Temperature Operated Semiconductor Devices (LOTOS). In the proposed system HTS cables supply DC power and cooling fluid to a set of distributed ultra-high efficiency, low-cost, miniature Cryo-Silicon Transformers (CST) acting as DC/AC inverters. The CSTs implemented with Cryo-MOSFETs or Cryo-IGBTs/MTOs and HTS filter inductors will enable drastic reductions in size and weight in comparison to conventional copper/iron transformers. They will probably also be less expensive than HTS transformers. Integrated into the complete energy distribution system the CST will save due to its much smaller footprint expensive floor space in any high-rise building. In addition considerable electrical energy savings of 5 % to 10 % in future building complexes should be achievable, especially in hot areas. Similar thermal energy savings are possible in the power station. The use of DC distribution solves also any problem with AC losses in the HTS cables. The proposed system could be a first profitable application of HTS cables as well as CPC. It can also be integrated with the air-conditioning and LN2 fire extinguishing systems.